CN110199809A - A kind of efficient construction method of cassava inbred line population material - Google Patents
A kind of efficient construction method of cassava inbred line population material Download PDFInfo
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- CN110199809A CN110199809A CN201910570560.3A CN201910570560A CN110199809A CN 110199809 A CN110199809 A CN 110199809A CN 201910570560 A CN201910570560 A CN 201910570560A CN 110199809 A CN110199809 A CN 110199809A
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- 235000016735 Manihot esculenta subsp esculenta Nutrition 0.000 title claims abstract description 108
- 239000000463 material Substances 0.000 title claims abstract description 36
- 238000010276 construction Methods 0.000 title claims abstract description 21
- 241000658379 Manihot esculenta subsp. esculenta Species 0.000 title 1
- 239000003337 fertilizer Substances 0.000 claims abstract description 112
- 240000003183 Manihot esculenta Species 0.000 claims abstract description 110
- 241000196324 Embryophyta Species 0.000 claims abstract description 66
- 235000013399 edible fruits Nutrition 0.000 claims abstract description 45
- 230000010152 pollination Effects 0.000 claims abstract description 34
- 238000000034 method Methods 0.000 claims abstract description 32
- 230000014759 maintenance of location Effects 0.000 claims abstract description 27
- 239000003895 organic fertilizer Substances 0.000 claims abstract description 24
- 229910052939 potassium sulfate Inorganic materials 0.000 claims abstract description 22
- 235000011151 potassium sulphates Nutrition 0.000 claims abstract description 22
- KMQAPZBMEMMKSS-UHFFFAOYSA-K calcium;magnesium;phosphate Chemical compound [Mg+2].[Ca+2].[O-]P([O-])([O-])=O KMQAPZBMEMMKSS-UHFFFAOYSA-K 0.000 claims abstract description 19
- 210000003608 fece Anatomy 0.000 claims abstract description 19
- 239000007921 spray Substances 0.000 claims abstract description 15
- -1 compound potassium sulfate Chemical class 0.000 claims abstract description 14
- 238000003306 harvesting Methods 0.000 claims abstract description 10
- 229910000402 monopotassium phosphate Inorganic materials 0.000 claims abstract description 10
- 235000019796 monopotassium phosphate Nutrition 0.000 claims abstract description 10
- PJNZPQUBCPKICU-UHFFFAOYSA-N phosphoric acid;potassium Chemical compound [K].OP(O)(O)=O PJNZPQUBCPKICU-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000002513 implantation Methods 0.000 claims abstract description 9
- 239000010871 livestock manure Substances 0.000 claims abstract description 7
- 238000009331 sowing Methods 0.000 claims abstract description 7
- 241000894006 Bacteria Species 0.000 claims description 30
- 239000000203 mixture Substances 0.000 claims description 20
- 239000002689 soil Substances 0.000 claims description 18
- 239000005416 organic matter Substances 0.000 claims description 15
- 239000007787 solid Substances 0.000 claims description 12
- 230000000813 microbial effect Effects 0.000 claims description 11
- QJZYHAIUNVAGQP-UHFFFAOYSA-N 3-nitrobicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid Chemical compound C1C2C=CC1C(C(=O)O)C2(C(O)=O)[N+]([O-])=O QJZYHAIUNVAGQP-UHFFFAOYSA-N 0.000 claims description 10
- 239000004021 humic acid Substances 0.000 claims description 10
- 229910052700 potassium Inorganic materials 0.000 claims description 10
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 8
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 claims description 8
- 229920002472 Starch Polymers 0.000 claims description 7
- 229910052757 nitrogen Inorganic materials 0.000 claims description 7
- 239000002686 phosphate fertilizer Substances 0.000 claims description 7
- 229910052698 phosphorus Inorganic materials 0.000 claims description 7
- 239000008107 starch Substances 0.000 claims description 7
- 235000019698 starch Nutrition 0.000 claims description 7
- 241000193388 Bacillus thuringiensis Species 0.000 claims description 6
- 241001494479 Pecora Species 0.000 claims description 6
- 229940097012 bacillus thuringiensis Drugs 0.000 claims description 6
- 238000000855 fermentation Methods 0.000 claims description 6
- 230000004151 fermentation Effects 0.000 claims description 6
- 230000008014 freezing Effects 0.000 claims description 6
- 238000007710 freezing Methods 0.000 claims description 6
- 238000003973 irrigation Methods 0.000 claims description 6
- 230000002262 irrigation Effects 0.000 claims description 6
- 230000002269 spontaneous effect Effects 0.000 claims description 6
- JVXHQHGWBAHSSF-UHFFFAOYSA-L 2-[2-[bis(carboxylatomethyl)amino]ethyl-(carboxylatomethyl)amino]acetate;hydron;iron(2+) Chemical compound [H+].[H+].[Fe+2].[O-]C(=O)CN(CC([O-])=O)CCN(CC([O-])=O)CC([O-])=O JVXHQHGWBAHSSF-UHFFFAOYSA-L 0.000 claims description 4
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 4
- 239000000783 alginic acid Substances 0.000 claims description 4
- 229920000615 alginic acid Polymers 0.000 claims description 4
- 229960001126 alginic acid Drugs 0.000 claims description 4
- 235000010443 alginic acid Nutrition 0.000 claims description 4
- 150000004781 alginic acids Chemical class 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- ZPWVASYFFYYZEW-UHFFFAOYSA-L dipotassium hydrogen phosphate Chemical compound [K+].[K+].OP([O-])([O-])=O ZPWVASYFFYYZEW-UHFFFAOYSA-L 0.000 claims description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 4
- 229910052943 magnesium sulfate Inorganic materials 0.000 claims description 4
- 235000019341 magnesium sulphate Nutrition 0.000 claims description 4
- 239000011707 mineral Substances 0.000 claims description 4
- 235000010755 mineral Nutrition 0.000 claims description 4
- 239000011591 potassium Substances 0.000 claims description 4
- 241000193830 Bacillus <bacterium> Species 0.000 claims 1
- 240000002834 Paulownia tomentosa Species 0.000 claims 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims 1
- 239000005864 Sulphur Substances 0.000 claims 1
- 239000002131 composite material Substances 0.000 claims 1
- 238000009395 breeding Methods 0.000 abstract description 31
- 230000001488 breeding effect Effects 0.000 abstract description 28
- 235000004456 Manihot esculenta Nutrition 0.000 abstract description 3
- 238000010899 nucleation Methods 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 239000011575 calcium Substances 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 6
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 5
- 235000017491 Bambusa tulda Nutrition 0.000 description 5
- 241001330002 Bambuseae Species 0.000 description 5
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 5
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 5
- 244000055346 Paulownia Species 0.000 description 5
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 5
- 239000011425 bamboo Substances 0.000 description 5
- 229910052791 calcium Inorganic materials 0.000 description 5
- 238000009396 hybridization Methods 0.000 description 5
- 239000011777 magnesium Substances 0.000 description 5
- 229910052749 magnesium Inorganic materials 0.000 description 5
- 238000009400 out breeding Methods 0.000 description 5
- 230000005562 seed maturation Effects 0.000 description 5
- 230000017260 vegetative to reproductive phase transition of meristem Effects 0.000 description 5
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 4
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 4
- 229910052796 boron Inorganic materials 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 230000009027 insemination Effects 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 229910052711 selenium Inorganic materials 0.000 description 4
- 239000011669 selenium Substances 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 3
- 238000009402 cross-breeding Methods 0.000 description 3
- 230000005078 fruit development Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000001737 promoting effect Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 235000013339 cereals Nutrition 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 241001474374 Blennius Species 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 241000221017 Euphorbiaceae Species 0.000 description 1
- 241000218922 Magnoliophyta Species 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000002595 cold damage Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002068 genetic effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 230000010198 maturation time Effects 0.000 description 1
- 230000002906 microbiologic effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000009237 prenatal development Effects 0.000 description 1
- 230000000306 recurrent effect Effects 0.000 description 1
- 230000001850 reproductive effect Effects 0.000 description 1
- 238000009394 selective breeding Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C21/00—Methods of fertilising, sowing or planting
- A01C21/005—Following a specific plan, e.g. pattern
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G22/00—Cultivation of specific crops or plants not otherwise provided for
- A01G22/25—Root crops, e.g. potatoes, yams, beet or wasabi
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B1/00—Superphosphates, i.e. fertilisers produced by reacting rock or bone phosphates with sulfuric or phosphoric acid in such amounts and concentrations as to yield solid products directly
- C05B1/02—Superphosphates
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F11/00—Other organic fertilisers
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F11/00—Other organic fertilisers
- C05F11/02—Other organic fertilisers from peat, brown coal, and similar vegetable deposits
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/80—Soil conditioners
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G5/00—Fertilisers characterised by their form
- C05G5/20—Liquid fertilisers
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Botany (AREA)
- Cultivation Of Plants (AREA)
- Fertilizers (AREA)
Abstract
The invention discloses a kind of efficient construction methods of cassava inbred line population material, include the following steps: selection of land, level land and base manure application, sowing, rush Hua Baohua, pollination, fruit retention, harvesting seed.The present invention is using compound potassium sulfate fertilizer, calcium magnesium phosphate, organic fertilizer mixing fertilising; fertilizer each element ratio is suitable; meet the growth needs of Manihot Esculenta; it sprays or root application flower forcing is fertile, protects fertilizers for potted flowers, potassium dihydrogen phosphate; cassava is promoted to bloom ahead of time; raising is bloomed quantity and per plant rate, and the top dressing of fruit retention fertilizer is used after cassava result, effectively increases the setting percentage and fruit weight of cassava fruit.Interlacing interval of the present invention implantation time improves the collision probability of cassava hero female flower, improves pollination rate.The present invention has also been discharged the interference of foreign pollen, and purity is up to 100%, and the present invention use fertilising, promote flower, protect flower, fruit retention method, so that cassava is bloomed ahead of time, seed harvests ahead of time, and seeding ratio improves, and shortens breeding cycle.
Description
Technical field
The present invention relates to technical field of crop cultivation, and in particular to a kind of efficient side of building of cassava inbred line population material
Method.
Background technique
Cassava (Manihot esculenta Crantz) is Euphorbiaceae casava, drought-enduring to resist barren, plantation extensively
It is one of three big tuber crops in more than 100 countries such as Africa, America and Asia, the third-largest cereal crops in hot-zone, entirely
The sixth-largest cereal crops of ball are known as " king of starch ".Cassava whole body be all it is precious, it is widely used, it is edible, feeding and be processed into
Various industrial products, such as starch, alcohol.
Cassava is the different flowering plant of monoecism, and crossbreeding is the important channel of breed breeding.The cassava of China's breeding is new
Kind is mainly introduced by resource or open hybridization (only knowing female parent) breeding come, part kind is in Hainan or from foreign countries
It collects breeding hybridized.Up to the present, south China 205 is selected altogether, south China 5, newly selects 048 etc. more than 30 cassava new product
Kind.The influence of main climate factor carries out crossbreeding difficulty south subtropics monsoon region (such as: in Guangxi District), in Guangxi
Cassava fruit is difficult normal mature under weather conditions, there are fruit development is abnormal or the ropy outstanding problem of seed, passes through
The excellent Cassava Variety that crossbreeding obtains is seldom, torrid areas (such as: Hainan) although cassava fruit energy normal mature,
It is the cassava florescence vulnerable to typhoon influence, cassava pollination rate is low, directly results in cassava seed acquisition amount and substantially reduces, and it is new to extend cassava
The breeding for quality period.Therefore, urgent need innovation breeding method, is in Guangxi District and cassava breeding and system are carried out in Hainan Region
Select index work proposes solution.
The building of inbred line population and excellent resources, which are screened, provides important way for the excellent Cassava Variety breeding of characteristic
Diameter.National tropical agriculture research center (CIAT) expert has found precious " glutinous cassava " germ plasm resource in self-mating system.More
It works importantly, selfing recurrent selection can create pure lines material for cassava genetic improvement.Climate influences, and adds cassava
It is cross pollinated plant, same inflorescence female flower male flower flowering time has interval, and the pollination rate of breeding is extremely low, and fruit-setting rate is extremely low, from
Friendship is that population material is difficult to efficiently obtain.Up to the present, the acquisition in relation to being selfed based material is all by artificial miscellaneous in the world
The method of friendship obtains, at high cost, low efficiency, the domestic report that inbred line population material obtains not yet.
Summary of the invention
The present invention overcomes in the prior art, under the weather conditions of south subtropics monsoon region cassava fruit be difficult normally at
Ripe, abnormal there are fruit development or seed is of poor quality, in torrid areas, cassava pollination rate is low, and cassava seed acquisition amount is few, and
The same inflorescence female flower male flower flowering time of cassava has interval, and the pollination rate of breeding is extremely low, and fruit-setting rate is extremely low, and uses artificial hybridization
The technical problems such as the at high cost, low efficiency of the method for obtained inbred line population material provide a kind of cassava inbred line population material
Efficient construction method.
To solve the above problems, the present invention adopts the following technical scheme that:
A kind of efficient construction method of cassava inbred line population material, includes the following steps:
(1) in the torrid zone and south subtropics monsoon region, the sandy soil of the deep loosing soil of soil layer, level land or mountain selection of land: are selected
Ground, planting site irrigation and drainage are convenient and 5 kilometer range of periphery is interior plants without other cassavas;
(2) level land and apply with base manure: according to the line-spacing ridging of 1.0~1.2m, setting spacing in the rows is 1.0~1.2m on ridge
Kind plant hole;Compound potassium sulfate fertilizer, calcium magnesium phosphate, organic fertilizer are spread fertilizer over the fields in described kind of plant hole;
(3) sow: in mid or late March to early April, interlacing is staggered 5~10 days and plants, and the seedling stem of varieties of plant is laid flat
Or oblique cutting is seeded in kind of plant hole;
(4) promote Hua Baohua: in early June to late July, using flower forcing fertilizer;The method of application of the flower forcing fertilizer can be spray
Flower forcing Liquid Fertilizer or root application flower forcing solid fertilizer are applied, the flower forcing solid fertilizer amount of application is 30~80kg/hm2, interval is applied for 5~10 days
It with primary, sprays 2~3 times, full blossom stops application;Pay attention to field management later, protect bud, deactivate interval 5 after flower forcing fertilizer~
10 days can root application protect fertilizers for potted flowers or spray 0.075~0.125% potassium dihydrogen phosphate for 1~2 time;
(5) pollinate: can completely by strictly open spontaneous pollination, can also by artificial supplementary pollination, as a result after can bagging
Protection prevents from being scattered after seed is mature;5~15 days root application fruit retention fertilizer after cassava pollination;The dose of the fruit retention fertilizer be 50~
100kg/hm2;
(6) harvest seed: can be harvested successively January in November to next year mature selfed seed and in 5 DEG C~10 DEG C of temperature,
It is saved in 60% Freezing room of humidity.
Wherein, in the flower forcing Liquid Fertilizer, mineral humic acid >=50g/L, EDTA- iron >=0.5g/L, EDTA- copper >=
0.5g/L, potassium fulvate >=14g/L, potassium sulfate >=5g/L, magnesium sulfate >=5g/L, potassium dihydrogen phosphate >=10g/L, dipotassium hydrogen phosphate
≥5g/L。
Wherein, in the flower forcing solid fertilizer, N+P2O5+K2O gross mass percentage composition >=5%, middle microelement >=8%, have
Machine matter mass percentage >=15%, pH value 5.5~6.5.Wherein, the middle microelement is by calcium, magnesium, boron, iron, selenium, zinc member
Element composition.Preferably, calcium, magnesium, boron, iron, selenium, zinc mass ratio are 10~12:0.1~0.5:0.01~0.1:0.1~0.3:
0.01~0.1:0.2~0.5.
Wherein, guarantor's fertilizers for potted flowers is alga fertilizer, in the alga fertilizer, alginic acid mass percentage >=36%.
Wherein, guarantor's fertilizers for potted flowers amount of application is 50~100kg/hm2。
Wherein, in the fruit retention fertilizer, humic acid >=40g/L, organic matter >=110g/L, N >=150g/L, P2O5≥160g/L、
K2O >=190g/L, B:15~25g/L.
Wherein, the amount of application of the compound potassium sulfate fertilizer is 100~300kg/hm2, the amount of application of the calcium magnesium phosphate is
200~400kg/hm2, the amount of application of the organic fertilizer is 600~1000kgm2。
Wherein, in the compound potassium sulfate fertilizer, N mass percentage 15%, P2O5Mass percentage 15%, K2O mass
Percentage composition 15%.
Wherein, in the calcium magnesium phosphate, P2O5Mass percentage >=12%, MgO mass percentage >=4%, CaO matter
Measure percentage composition >=10%.
Wherein, the organic fertilizer is made of addition microbial bacteria fermentation after sheep dung, cow dung, paulownia bran, phosphate fertilizer mixing, described micro-
Biological bacteria is made of cellulose-decomposing bacterium, starch decomposer, lichengermium, nitrogen-fixing bacteria, EM bacterium, bacillus thuringiensis, institute
It states in organic fertilizer, quality of organic matter percentage composition >=45%, N P and K mass percentage >=5%.
In step (3) sowing, the interlacing is staggered 5~10 days implantation methods are as follows: counts since the side of cassava planting site
Number, odd-numbered line cassava are planted on the same day, and even number line cassava is planted on the same day;Implantation time between odd-numbered line and even number line differs 5~
10 days.
Wherein, the seed that the step (6) obtains is nursery at 25~35 DEG C in room temperature.
When the breeding material that the present invention is obtained carries out breeding plantation, it need to will store, after about 2 months dormant periods,
Cassava seed can normally sow vernalization, generally carry out under 25~35 DEG C of environment of temperature indoors, seedling can be moved from friendship by April in large bamboo hat with a conical crown and broad brim year
It is that group plants to crop field.
The present invention has the advantages that compared with prior art
(1) a kind of efficient construction method of cassava inbred line population material of the invention uses potassium sulfate compound before planting
Fertilizer, calcium magnesium phosphate, organic fertilizer mixing fertilising, wherein nitrogen K-Mg-Ca phosphorus ratio is suitable for that ensure that the nutrient growth of Manihot Esculenta
Needs, in turn avoid plant excessive growth influence reproductive growth;It sprays or root application flower forcing fertilizer and sprays and protect fertilizers for potted flowers or potassium dihydrogen phosphate,
It can promote cassava to bloom ahead of time, improve the quantity of blooming of cassava, improve per plant rate.It is chased after after cassava result using fruit retention fertilizer
Fertilizer effectively increases the setting percentage and fruit weight of cassava fruit, improves cassava fruit quality, and interlacing interval 5 of the present invention
~10 days plantation cassavas improve the same period collision probability of cassava hero female flower, pollination rate are improved, to improve per plant rate.This
The interference of foreign pollen has been discharged in the cassava inbred line population material selective breeding method of invention, and purity is up to 100%, and the present invention adopts
Fertilising promotees flower, protects flower, fruit retention method, so that cassava is bloomed ahead of time, seed harvests ahead of time, it is ensured that the sowing of second year seed
It can be transplanted to crop field after nursery in time, normal growth, shorten breeding cycle 1 year or more.
(2) the efficient construction method of cassava inbred line population material of the invention passes through reasonably cultivation and reasonable rush
Flower, guarantor's flower, the available seed quality of fruit retention technology are good, the inbred line population material more than quantity, can get a large amount of obviously characters point
From progeny population material, can therefrom screen to obtain excellent Cassava Cultivars (being), be conducive to cassava breeding and cassava heredity changes
What skilled worker made goes on smoothly.
Specific embodiment
Below with reference to embodiment and test, the invention will be further described.
Embodiment 1
A kind of efficient construction method of cassava inbred line population material, includes the following steps:
(1) in the torrid zone and south subtropics monsoon region, the sandy soil of the deep loosing soil of soil layer, level land or mountain selection of land: are selected
Ground, planting site irrigation and drainage are convenient and 5 kilometer range of periphery is interior plants without other cassavas;
(2) it levels land and is applied with base manure: according to the line-spacing ridging of 1.2m, the kind plant hole that spacing in the rows is 1.0m is set on ridge;
Compound potassium sulfate fertilizer, calcium magnesium phosphate, organic fertilizer are spread fertilizer over the fields in described kind of plant hole;The amount of application of the compound potassium sulfate fertilizer is 300kg/
hm2, the amount of application of the calcium magnesium phosphate is 200kg/hm2, the amount of application of the organic fertilizer is 1000kg/hm2;The potassium sulfate
In compound fertilizer, N mass percentage 15%, P2O5Mass percentage 15%, K2O mass percentage 15%, the calcium and magnesium
In phosphate fertilizer, P2O5Mass percentage 12%, MgO mass percentage 4%, CaO mass percentage 10%.The organic fertilizer
It is made of addition microbial bacteria fermentation after the sheep dung of equal mass ratioes, cow dung, paulownia bran, phosphate fertilizer mixing, in the organic fertilizer, organic matter
Mass percentage 45%, N P and K mass percentage 5%;The microbial bacteria by cellulose-decomposing bacterium, starch decomposer,
Lichengermium, nitrogen-fixing bacteria, EM bacterium, bacillus thuringiensis composition;
(3) sow: in mid or late March to early April, interlacing is staggered 5 days and plants, and the seedling stem oblique cutting of varieties of plant is sowed
In in kind of plant hole;It is to start counting from the side of cassava planting site that the interlacing, which is staggered 5 days and plants specific method, odd-numbered line cassava
It plants on the same day, even number line cassava is planted on the same day;Implantation time between odd-numbered line and even number line differs 5 days;
(4) promote Hua Baohua: in early June to late July, using flower forcing fertilizer;The method of application of the flower forcing fertilizer is to spray
Flower forcing Liquid Fertilizer is spaced application in 10 days once, sprays 3 times, and full blossom stops application;Field management is paid attention to later, is protected bud, is stopped
It is protected fertilizers for potted flowers 2 times with 10 days root applications are spaced after flower forcing fertilizer;Guarantor's fertilizers for potted flowers amount of application is 100kg/hm2;Guarantor's fertilizers for potted flowers is seaweed
Fertilizer;In the alga fertilizer, alginic acid mass percentage is 36%.In the flower forcing Liquid Fertilizer, mineral humic acid 50g/L,
EDTA- iron 0.5g/L, EDTA- copper 0.5g/L, potassium fulvate 14g/L, potassium sulfate 5g/L, magnesium sulfate 5g/L, potassium dihydrogen phosphate
10g/L, dipotassium hydrogen phosphate 5g/L;
(5) pollinate: can completely by strictly open spontaneous pollination, can also by artificial supplementary pollination, as a result after can bagging
Protection prevents from being scattered after seed is mature;15 days root application fruit retention fertilizer after cassava pollination;The dose of the fruit retention fertilizer is 50kg/
hm2;In the fruit retention fertilizer, humic acid 40g/L, organic matter 110g/L, N150g/L, P2O5160g/L、K2O190g/L、B25g/L。
(6) it harvests seed: mature selfed seed can be harvested successively January in November to next year and in 10 DEG C of temperature, humidity
It is saved in 60% Freezing room;
(7) it nursery: when the inbred line population material that step (6) is obtained carries out breeding plantation, need to be stored about 2 months
Dormant period after, carry out Pregermination and seedling breeding under 25 DEG C of environment of temperature indoors, seedling can be moved inbred line population and planted to big by April in large bamboo hat with a conical crown and broad brim year
Field.
Embodiment 2
A kind of efficient construction method of cassava inbred line population material, includes the following steps:
(1) in the torrid zone and south subtropics monsoon region, the sandy soil of the deep loosing soil of soil layer, level land or mountain selection of land: are selected
Ground, planting site irrigation and drainage are convenient and 5 kilometer range of periphery is interior plants without other cassavas;
(2) it levels land and is applied with base manure: according to the line-spacing ridging of 1.1m, the kind plant hole that spacing in the rows is 1.2m is set on ridge;
Compound potassium sulfate fertilizer, calcium magnesium phosphate, organic fertilizer are spread fertilizer over the fields in described kind of plant hole;The amount of application of the compound potassium sulfate fertilizer is 200kg/
hm2, the amount of application of the calcium magnesium phosphate is 300kg/hm2, the amount of application of the organic fertilizer is 800kgm2;The potassium sulfate is compound
In fertilizer, N mass percentage 15%, P2O5Mass percentage 15%, K2O mass percentage 15%, the calcium magnesium phosphate
In, P2O5Mass percentage 20%, MgO mass percentage 5%, CaO mass percentage 12%;The organic fertilizer is by matter
Amount for addition microbial bacteria fermentation after the sheep dung of 50:20:10:15, cow dung, paulownia bran, phosphate fertilizer mixing than being made, the organic fertilizer
In, quality of organic matter percentage composition 55%, N P and K mass percentage 10%;The microbial bacteria by cellulose-decomposing bacterium,
Starch decomposer, lichengermium, nitrogen-fixing bacteria, EM bacterium, bacillus thuringiensis composition;
(3) sow: in mid or late March to early April, interlacing is staggered 8 days and plants, and the seedling stem of varieties of plant is laid flat sowing
In in kind of plant hole;It is to start counting from the side of cassava planting site that the interlacing, which is staggered 8 days and plants specific method, odd-numbered line cassava
It plants on the same day, even number line cassava is planted on the same day;Implantation time between odd-numbered line and even number line differs 8 days;
(4) promote Hua Baohua: in early June to late July, using flower forcing fertilizer;The method of application of the flower forcing fertilizer is to spray
Flower forcing Liquid Fertilizer is spaced application in 8 days once, sprays 2 times, and full blossom stops application;Field management is paid attention to later, is protected bud, is stopped
It is sprayed within 8 days with being spaced after flower forcing fertilizer 0.075 potassium dihydrogen phosphate for 2 times;In the flower forcing Liquid Fertilizer, mineral humic acid 52g/L,
EDTA- iron 0.8g/L, EDTA- copper 0.6g/L, potassium fulvate 20g/L, potassium sulfate 8g/L, magnesium sulfate 8g/L, potassium dihydrogen phosphate
12g/L, dipotassium hydrogen phosphate 8g/L;
(5) pollinate: can completely by strictly open spontaneous pollination, can also by artificial supplementary pollination, as a result after can bagging
Protection prevents from being scattered after seed is mature;10 days root application fruit retention fertilizer after cassava pollination;The dose of the fruit retention fertilizer is 80kg/
hm2;In the fruit retention fertilizer, humic acid 50g/L, organic matter 114g/L, N160g/L, P2O5179g/L、K2O200g/L,B20g/L;
(6) it harvests seed: mature selfed seed can be harvested successively January in November to next year and in 8 DEG C of temperature, humidity
It is saved in 60% Freezing room;
(7) it nursery: when the inbred line population material that step (6) is obtained carries out breeding plantation, need to be stored about 2 months
Dormant period after, carry out Pregermination and seedling breeding under 30 DEG C of environment of temperature indoors, seedling can be moved inbred line population and planted to big by April in large bamboo hat with a conical crown and broad brim year
Field.
Embodiment 3
A kind of efficient construction method of cassava inbred line population material, includes the following steps:
(1) in the torrid zone and south subtropics monsoon region, the sandy soil of the deep loosing soil of soil layer, level land or mountain selection of land: are selected
Ground, planting site irrigation and drainage are convenient and 5 kilometer range of periphery is interior plants without other cassavas;
(2) it levels land and is applied with base manure: according to the line-spacing ridging of 1.0m, the kind plant hole that spacing in the rows is 1.2m is set on ridge;
Compound potassium sulfate fertilizer, calcium magnesium phosphate, organic fertilizer are spread fertilizer over the fields in described kind of plant hole;The amount of application of the compound potassium sulfate fertilizer is 100kg/
hm2, the amount of application of the calcium magnesium phosphate is 400kg/hm2, the amount of application of the organic fertilizer is 600kgm2;The potassium sulfate is compound
In fertilizer, N mass percentage 15%, P2O5Mass percentage 15%, K2O mass percentage 15%, the calcium magnesium phosphate
In, P2O5Mass percentage 15%, MgO mass percentage 8%, CaO mass percentage 12%.The organic fertilizer has matter
Amount point for addition microbial bacteria fermentation after the sheep dung of 30:30:30:10, cow dung, paulownia bran, phosphate fertilizer mixing than being made, the organic fertilizer
In, quality of organic matter percentage composition 50%, N P and K mass percentage 6%;The microbial bacteria is by cellulose-decomposing bacterium, shallow lake
Powder decomposer, lichengermium, nitrogen-fixing bacteria, EM bacterium, bacillus thuringiensis composition;
(3) sow: in mid or late March to early April, interlacing is staggered 10 days and plants, and the seedling stem oblique cutting of varieties of plant is broadcast
Kind is in kind of plant hole;It is to start counting from the side of cassava planting site that the interlacing, which is staggered 10 days and plants specific method, odd-numbered line
Cassava is planted on the same day, and even number line cassava is planted on the same day;Implantation time between odd-numbered line and even number line differs 10 days;
(4) promote Hua Baohua: in early June to late July, using flower forcing fertilizer;The method of application of the flower forcing fertilizer is root application
Flower forcing solid fertilizer, the flower forcing solid fertilizer amount of application are 30kg/hm2, it is spaced application in 5 days once, sprays 2 times, full blossom stopping is applied
With;Field management is paid attention to later, protects bud, is spaced 5 days root application guarantor fertilizers for potted flowers 1 time after deactivating flower forcing fertilizer;Guarantor's fertilizers for potted flowers application
Amount is 50kg/hm2;Guarantor's fertilizers for potted flowers is alga fertilizer;In the alga fertilizer, alginic acid mass percentage is 48%.It is described
In flower forcing solid fertilizer, N+P2O5+K2O gross mass percentage composition 5%, middle microelement 8%, quality of organic matter percentage composition 20%,
PH value 6.5;Wherein, the middle microelement by mass ratio be the calcium of 12:0.1:0.1:0.1:0.1:0.2, magnesium, boron, iron, selenium,
Zn-ef ficiency composition;
(5) pollinate: can completely by strictly open spontaneous pollination, can also by artificial supplementary pollination, as a result after can bagging
Protection prevents from being scattered after seed is mature;5 days root application fruit retention fertilizer after cassava pollination;The dose of the fruit retention fertilizer is 100kg/
hm2;In the fruit retention fertilizer, humic acid 45g/L, organic matter 120g/L, N155g/L, P2O5172g/L、K2O195g/L,B15g/L;
(6) it harvests seed: mature selfed seed can be harvested successively January in November to next year and in 5 DEG C of temperature, humidity
It is saved in 60% Freezing room;
(7) it nursery: when the inbred line population material that step (6) is obtained carries out breeding plantation, need to be stored about 2 months
Dormant period after, carry out Pregermination and seedling breeding under 35 DEG C of environment of temperature indoors, seedling can be moved inbred line population and planted to big by April in large bamboo hat with a conical crown and broad brim year
Field.
Embodiment 4
A kind of efficient construction method of cassava inbred line population material, includes the following steps:
(1) in the torrid zone and south subtropics monsoon region, the sandy soil of the deep loosing soil of soil layer, level land or mountain selection of land: are selected
Ground, planting site irrigation and drainage are convenient and 5 kilometer range of periphery is interior plants without other cassavas;
(2) it levels land and is applied with base manure: according to the line-spacing ridging of 1.1m, the kind plant hole that spacing in the rows is 1.1m is set on ridge;
Compound potassium sulfate fertilizer, calcium magnesium phosphate, organic fertilizer are spread fertilizer over the fields in described kind of plant hole;The amount of application of the compound potassium sulfate fertilizer is 200kg/
hm2, the amount of application of the calcium magnesium phosphate is 300kg/hm2, the amount of application of the organic fertilizer is 700kgm2, the potassium sulfate is compound
In fertilizer, N mass percentage 15%, P2O5Mass percentage 15%, K2O mass percentage 15%, the calcium magnesium phosphate
In, P2O5Mass percentage 18%, MgO mass percentage 8%, CaO mass percentage 24%.The organic fertilizer by etc.
The fermentation of addition microbial bacteria is made after the sheep dung of mass ratio, cow dung, paulownia bran, phosphate fertilizer mix, and the microbial bacteria is by cellulose point
Bacterium, starch decomposer, lichengermium, nitrogen-fixing bacteria, EM bacterium, bacillus thuringiensis is solved to form, in the organic fertilizer, organic matter
Mass percentage 60%, N P and K mass percentage 8%.
(3) sow: in mid or late March to early April, interlacing is staggered 8 days and plants, and the seedling stem of varieties of plant is laid flat sowing
In in kind of plant hole;It is to start counting from the side of cassava planting site that the interlacing, which is staggered 8 days and plants specific method, odd-numbered line cassava
It plants on the same day, even number line cassava is planted on the same day;Implantation time between odd-numbered line and even number line differs 8 days;
(4) promote Hua Baohua: in early June to late July, using flower forcing fertilizer;The method of application of the flower forcing fertilizer is root application
Flower forcing solid fertilizer, the flower forcing solid fertilizer amount of application are 80kg/hm2, it is spaced application in 9 days once, sprays 2 times, full blossom stopping is applied
With;Pay attention to field management later, protect bud, deactivates and be spaced after flower forcing fertilizer potassium dihydrogen phosphate 1 time that sprays within 6 days 0.125%.Institute
It states in flower forcing solid fertilizer, N+P2O5+K2O gross mass percentage composition 10%, middle microelement 10%, quality of organic matter percentage composition
15%, pH value 5.5;Wherein, the middle microelement by mass ratio be the calcium of 10:0.5:0.01:0.3:0.01:0.5, magnesium, boron,
Iron, selenium, Zn-ef ficiency composition;
(5) pollinate: can completely by strictly open spontaneous pollination, can also by artificial supplementary pollination, as a result after can bagging
Protection prevents from being scattered after seed is mature;12 days root application fruit retention fertilizer after cassava pollination;The dose of the fruit retention fertilizer is 60kg/
hm2;In the fruit retention fertilizer, humic acid 50g/L, organic matter 115g/L, N155g/L, P2O5165g/L、K2O195g/L,B22g/L;
(6) it harvests seed: mature selfed seed can be harvested successively January in November to next year and in 6 DEG C of temperature, humidity
It is saved in 60% Freezing room.
(7) it nursery: when the inbred line population material that step (6) is obtained carries out breeding plantation, need to be stored about 2 months
Dormant period after, carry out Pregermination and seedling breeding under 32 DEG C of environment of temperature indoors, seedling can be moved inbred line population and planted to big by April in large bamboo hat with a conical crown and broad brim year
Field.
Planting experiment 1:
The selection Nanning Wuming experimental plot Qu Lijian is planting site, selects 048, Nan Zhi 199, SC9, ST-1 tetra- using new
A kind plants breeding according to the method for 1~embodiment of embodiment 4, breeding statistical result such as the following table 1:
Table 1
Remarks: first time flowering time is the female time spent occur for the first time, similarly hereinafter.
Planting experiment 2:
Selection Guangxi Chongzuo City Longzhou County experimental plot is planting site, selects tetra- 048, Nan Zhi 199, SC9, ST-1 product using new
Kind plants breeding according to the method for 1~embodiment of embodiment 4, breeding statistical result such as the following table 2:
Table 2
Planting experiment 3:
The selection Sanya, Hainan city town Jiu Suo experimental plot is planting site, selects tetra- 048, Nan Zhi 199, SC9, ST-1 product using new
Kind plants breeding according to the method for 1~embodiment of embodiment 4, breeding statistical result such as the following table 3:
Table 3
Check experiment 1:
The selection Nanning Wuming experimental plot Qu Lijian is planting site, selects 048, Nan Zhi 199, SC9, ST-1 tetra- using new
A kind is open in crop field and interlacing interval is not used to plant for 5~10 days, without promoting flower flower and fruit protecting (i.e. without step
(4) promote flower and protect flower processing, step (5) does not apply fruit retention fertilizer), in the case where not using artificial hybridization etc. to handle, breeding and cultivation is obtained
The result arrived such as the following table 4:
Table 4
By in upper table 1 and table 4, first time flowering time and seed start maturation time and compare the cassava it is found that of the invention
Breeding method cassava does sth. in advance to bloom for 1 month, and cassava fruit is done sth. in advance to harvest for about 40 days, and seed is made to send out prenatal development in weathers such as cold damages
Maturation shortens seed maturation time, can be transplanted to crop field in time after also ensuring second year seed seeding and seedling raising, shorten and educate
The kind period.It is compared with insemination and emergence rate in table 4 it is found that the seed insemination and emergence rate phase that 4 Cassava Cultivars of the invention obtain by table 1
It is higher by 40% or more than control group, illustrate that seed fruit quality of the invention is high, the good emergence rate of quality is high.By single in table 1 and table 4
Strain inflorescence number compares with per plant number it is found that the per plant number of four Cassava Cultivars is compared in breeding method of the invention
It is improved in each kind of control group, and newly selects the single plant inflorescence number of 048, Nan Zhi, 199 two kinds compared to the control group
Height illustrates that the present invention can promote the difficult kind bloomed and bloom, and the wide in variety of Yi Kaihua blooms, and improves cassava into flower quantity and knot
Real rate promotes breeding efficiency.
Check experiment 2:
Selection Guangxi Chongzuo City Longzhou County experimental plot is planting site, selects tetra- 048, Nan Zhi 199, SC9, ST-1 product using new
Kind is open in crop field and interlacing interval is not used to plant for 5~10 days, without promoting flower flower and fruit protecting (i.e. without step (4) rush
Hua Baohua processing, step (5) do not apply fruit retention fertilizer), in the case where not using artificial hybridization etc. to handle, knot that breeding and cultivation obtains
Fruit such as the following table 5:
Table 5
By table 2, compared with table 5 it is found that using the method for the present invention, pollination to seed maturation time foreshortens to 90 days left sides
It is right.The method of the present invention is not used, general pollination to seed maturation time needs 100-110 days or so.By table 2 and broadcasting in table 5
Kind of emergence rate is compared it is found that the obtained seed insemination and emergence rate of 4 Cassava Cultivars of the invention is high by 20% or more compared to the control group,
The seed fruit quality for illustrating that the method for the present invention obtains is high, and quality is good, and emergence rate is high.By the per plant number in table 2 and table 5
Compared to it is found that the per plant number of the method for the present invention four strains is compared to control group height, illustrating that the present invention violates the law be can be improved
Pollination rate and setting percentage.
Check experiment 3:
The selection Sanya, Hainan city town Jiu Suo experimental plot is planting site, selects tetra- 048, Nan Zhi 199, SC9, ST-1 product using new
Kind is open in crop field and interlacing interval is not used to plant for 5~10 days, without promoting flower flower and fruit protecting (i.e. without step (4) rush
Hua Baohua processing, step (5) do not apply fruit retention fertilizer), in the case where not using artificial hybridization etc. to handle, knot that breeding and cultivation obtains
Fruit such as the following table 6:
Table 6
By table 3 it is found that pollination to seed maturation time foreshortens to 90 days or so using the method for the present invention compared with table 6.
The method of the present invention is not used, general pollination to seed maturation time needs 100-110 days or so.Gone out by table 3 and the sowing in table 6
Seedling rate, single plant inflorescence number, per plant number are compared it is found that the method for the present invention is compared to control group, the single plant of 4 Cassava Cultivars
Inflorescence number amplitude improves 3, and per plant number integrally doubles, and obtained seed insemination and emergence rate is high compared to the control group
10% or more, illustrate that quantity of blooming can be improved in the method for the present invention, Accelerate bloom, pollination rate is high, and setting percentage is high, the seed fruit of acquisition
Real mass is high, and quality is good, and emergence rate is high.
By three local trial results of table 1 and table 4, table 2 and table 5, table 3 and table 6 it is found that the method for the present invention solves
The torrid areas cassava florescence, cassava pollination rate was low vulnerable to typhoon influence, and it is low to directly result in cassava seed acquisition amount, subtropical zone monsoon
Area, cassava fruit are difficult normal mature, and fruit development is abnormal or seed is of poor quality, along with cassava is cross pollinated plant,
Same inflorescence female flower male flower flowering time has interval, and the pollination rate of breeding is extremely low, and fruit-setting rate is extremely low, and inbred line population material is difficult to
The technical issues of efficiently obtaining.The method of the present invention can make cassava Blooming, and cassava is promoted to bloom, and improve cassava pollination rate and knot
Real rate, obtained cassava seed quality is good, and emergence rate is high.
Above description is the detailed description for the present invention preferably possible embodiments, but embodiment is not limited to this hair
Bright patent claim, it is all the present invention suggested by technical spirit under completed same changes or modifications change, should all belong to
In the covered the scope of the patents of the present invention.
Claims (10)
1. a kind of efficient construction method of cassava inbred line population material, which comprises the steps of:
(1) in the torrid zone and south subtropics monsoon region, the sandy soil of the deep loosing soil of soil layer, level land or mountainous region, kind selection of land: are selected
It plants ground irrigation and drainage conveniently and is planted in 5 kilometer range of periphery without other cassavas;
(2) it levels land and is applied with base manure: according to the line-spacing ridging of 1.0~1.2m, the kind that spacing in the rows is 1.0~1.2m is set on ridge
Plant hole;Compound potassium sulfate fertilizer, calcium magnesium phosphate, organic fertilizer are spread fertilizer over the fields in described kind of plant hole;
(3) sow: in mid or late March to early April, interlacing is staggered 5~10 days and plants, and the seedling stem of varieties of plant is laid flat or tiltedly
It inserts and is seeded in kind of plant hole;
(4) promote Hua Baohua: in early June to late July, using flower forcing fertilizer;The method of application of the flower forcing fertilizer can be to spray to urge
Flower Liquid Fertilizer or root application flower forcing solid fertilizer, the flower forcing solid fertilizer amount of application are 30~80kg/hm2, it is spaced application one in 7~10 days
Secondary, full blossom stops application;Florescence pays attention to field management, protects bud, and root application protects fertilizers for potted flowers or sprays 0.075~0.125%
Potassium dihydrogen phosphate;
(5) pollinate: can completely by strictly open spontaneous pollination, can also by artificial supplementary pollination, as a result after can protected by bagging,
It prevents from being scattered after seed is mature;5~15 days root application fruit retention fertilizer after cassava pollination;The dose of the fruit retention fertilizer is 50~100kg/
hm2;
(6) it harvests seed: mature selfed seed can be harvested successively January in November to next year and in 5 DEG C of temperature~10 DEG C, humidity
It is saved in 60% Freezing room.
2. a kind of efficient construction method of cassava inbred line population material according to claim 1, which is characterized in that described to urge
Flower Liquid Fertilizer in, mineral humic acid >=50g/L, EDTA- iron >=0.5g/L, EDTA- copper >=0.5g/L, potassium fulvate >=14g/L,
Potassium sulfate >=5g/L, magnesium sulfate >=5g/L, potassium dihydrogen phosphate >=10g/L, dipotassium hydrogen phosphate >=5g/L.
3. a kind of efficient construction method of cassava inbred line population material according to claim 1, which is characterized in that described to urge
In flower solid fertilizer, N+P2O5+K2O gross mass percentage composition >=5%, middle microelement >=8%, quality of organic matter percentage composition >=
15%, pH value 5.5~6.5.
4. according to a kind of efficient construction method of cassava inbred line population material described in claim 1, which is characterized in that the fruit retention
In fertilizer, humic acid >=40g/L, organic matter >=110g/L, N >=150g/L, P2O5≥160g/L、K2O >=190g/L, B:15~
25g/L。
5. a kind of efficient construction method of cassava inbred line population material according to claim 1, which is characterized in that the guarantor
Fertilizers for potted flowers is alga fertilizer, in the alga fertilizer, alginic acid mass percentage >=36%, guarantor's fertilizers for potted flowers amount of application be 50~
100kg/hm2。
6. a kind of efficient construction method of cassava inbred line population material according to claim 1, which is characterized in that the sulphur
The amount of application of sour K composite fertilizer is 100~300kg/hm2, the amount of application of the calcium magnesium phosphate is 200~400kg/hm2, described to have
The amount of application of machine fertilizer is 600~1000kg/hm2。
7. a kind of efficient construction method of cassava inbred line population material according to claim 6, which is characterized in that described
In calcium magnesium phosphate, P2O5>=12%, MgO >=4%, CaO >=10%.
8. a kind of efficient construction method of cassava inbred line population material according to claim 6, which is characterized in that described to have
Machine fertilizer is made of addition microbial bacteria fermentation after sheep dung, cow dung, paulownia bran, phosphate fertilizer mixing;In the organic fertilizer, quality of organic matter hundred
Point content >=45%, N P and K mass percentage >=5%, the microbial bacteria by cellulose-decomposing bacterium, starch decomposer,
Clothing Bacillus, nitrogen-fixing bacteria, EM bacterium, bacillus thuringiensis composition.
9. a kind of efficient construction method of cassava inbred line population material according to claim 1, which is characterized in that step
(3) in sowing, the interlacing is staggered 5~10 days implantation methods are as follows: starts counting from the side of cassava planting site, odd-numbered line cassava
It plants on the same day, even number line cassava is planted on the same day;Implantation time between odd-numbered line and even number line differs 5~10 days.
10. a kind of efficient construction method of cassava inbred line population material according to claim 1, which is characterized in that described
The seed that step (6) obtains is nursery at 25~35 DEG C in room temperature.
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