CN105724242B - A kind of selection of feed upland rice variety - Google Patents

A kind of selection of feed upland rice variety Download PDF

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CN105724242B
CN105724242B CN201610131401.XA CN201610131401A CN105724242B CN 105724242 B CN105724242 B CN 105724242B CN 201610131401 A CN201610131401 A CN 201610131401A CN 105724242 B CN105724242 B CN 105724242B
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rice
seedling
strain
plants
straw
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CN105724242A (en
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陈幼玉
张云燕
施晓棠
章清杞
李晓燕
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Fujian Agriculture and Forestry University
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01H—NEW PLANTS OR NON-TRANSGENIC PROCESSES FOR OBTAINING THEM; PLANT REPRODUCTION BY TISSUE CULTURE TECHNIQUES
    • A01H1/00—Processes for modifying genotypes ; Plants characterised by associated natural traits
    • A01H1/02—Methods or apparatus for hybridisation; Artificial pollination ; Fertility
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01H—NEW PLANTS OR NON-TRANSGENIC PROCESSES FOR OBTAINING THEM; PLANT REPRODUCTION BY TISSUE CULTURE TECHNIQUES
    • A01H1/00—Processes for modifying genotypes ; Plants characterised by associated natural traits
    • A01H1/04—Processes of selection involving genotypic or phenotypic markers; Methods of using phenotypic markers for selection

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  • Breeding Of Plants And Reproduction By Means Of Culturing (AREA)
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Abstract

The invention discloses a kind of selection of feed upland rice variety, belong to Special Rices breeding technical field.The present invention makees basic parent from high yield, the feed rice varieties of high gross protein value, the upland rice variety for being adapted to the glutathione transferasc kind and high yield strong stress resistance for making feed with straw makees general parent, screened by the hybridization combo and objective trait of science, seed selection can be with dry farming cultivation, the high yield high nutrition dual-purpose mixed fodder rice varieties of paddy stalk.The feed upland rice variety cultivated can make upland rice cultivation, and yield is high, and the crude protein content of paddy and straw is above common rice varieties, dry land and mountain planting can be made full use of, kind of a rice water more than 60% is saved, makes full use of rice straw resource, every mu can increase income more than 400 yuan.The inventive method is scientific and efficient, easily operated, and the seed selection to feeding upland rice variety is significant.

Description

A kind of selection of feed upland rice variety
Technical field
Present invention relates particularly to a kind of selection of feed upland rice variety, belong to Special Rices breeding technical field.
Background technology
2400 tons of China's water resources ownership per capita, it is the 1/4 of world's water resources ownership per capita, occupies the 109th, the world, Every year because economic loss caused by water shortage exceedes 200,000,000,000 yuan.And China's agricultural water accounts for the 80% of total water consumption at present, its reclaimed water Rice water consumption accounts for the 70% of agricultural water.It means that the production water consumption of only rice just accounts for the 56% of national total water consumption, therefore With the existing water resource in China, it is difficult to support the further development of traditional rice.Upland rice variety is without sufficient moisture, water-saving amount More than 50%, therefore the another selection of grain security can be ensured as country, develop High-yield Dry Land Rice using nonirrigated farmland, should turned into and maintain The new selection of national food security.
Forage rice refers to breeding time is suitable, on the basis of resistance, using Optimum Cultivation, can realize (667 squares of high yield More than 550 kilograms of yield of rice), high containing protein, high brown rice yield (being not less than 80%) and be adapted to feeding rice varieties." high egg White forage rice " requires that brown rice gross protein value is more than or equal to 12%, the Breeding and popularization of " Forage Rice with High Protein Content ", can not only delay Indica rice is solved because of poor taste and difficulty the problem of selling, can also realize that southern area substitutes the imagination of field corn with forage rice brown rice. The live pig disease resistance raised with forage rice increases and meat taste is good, and brown rice raising remains basically stable with corn feeding cost, But development potentiality is huge.And all extract the aerial part of rice, grain, stalk, leaf mix as feed, are commonly called as Be mixed fodder rice, mixed fodder rice is compared with cutting green grass or young crops, hay, grain, and rich in grain and fiber, nutritive value and physics are special Property it is all more good, generally gathered in dough stage or full ripe stage, harvest is also more convenient, is the preferred plan for making feed with rice. The all more general straw of the gross protein value of Dual-purpose rice straw, protein digestibility, dry digestibility is high, and paddy stalk is dual-purpose " physics duricrust " less, Relatively centralized that lignin and hemicellulose are combined closely by fat key in straw, so as to in straw Degree is smaller, thus the contact surface of pepsin, cellulase etc. and glutathione transferasc grass meal for " the nutrition closing " of nutriment Greatly, animal can therefrom obtain more nutriment.Thus, it may be such that straw using glutathione transferasc to cultivate mixed fodder rice More meet feed request.
The content of the invention
In view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to provide it is a kind of can be with dry farming cultivation, high yield high nutrition The dual-purpose mixed fodder rice varieties of paddy stalk selection.It is more than 12%, brown rice yield with high yield, brown rice gross protein value and is more than 80% feed rice varieties make basic parent, and the drought for the glutathione transferasc kind and high yield strong stress resistance for making feed is adapted to straw Rice varieties make general parent, are screened by the hybridization combo and objective trait of science, dry farming cultivation, high yield can be made by selecting The dual-purpose mixed fodder rice varieties of paddy stalk of high nutrition.This method is scientific and efficient easily operated, and one is provided for the seed selection of forage rice The efficient new method of kind, the seed selection to feed rice varieties are significant.
To achieve the above object, the present invention adopts the following technical scheme that：
A kind of selection of feed upland rice variety, comprises the following steps：
（1）Hybrid strain selects：High yield, brown rice gross protein value is selected to be more than the forage rice that 12%, brown rice yield is more than 80% Make basic parent P, the upland rice of glutathione transferasc and high yield strong stress resistance makees general parent P1 and P2 respectively；
（2）Hybridize method for group matching：The parent P based on forage rice, to make genetic constitutions of the P in hybrid generation account for 7/8, Its high yield high protein is kept to integrate merit, using following hybridization method for group matching：
Hybridize for the first time：P×P1→F1-1；P×P2→F1-2；
Second of hybridization：P×F1-1→BF1-1；P×F1-2→BF1-2；
Third time hybridizes：BF1-1×BF1-2→BF1-12；By BF1-12Sowed, planted and screened to obtain BF4-12；
4th hybridization：P ×BF4-12→B2F1-12；
（3）The plantation of each inbreeding generation and the system of selection of filial generation：
A. kind plants parent P, P1 and P2, makees hybridization P × P1 → F in florescence1-1, P × P2 → F1-2；
B. kind plants hybridization F1For F1-1、F1-2With parent P, make hybridization P × F in florescence1-1With P × F1-2, F must be returned1Generation BF1-1And BF1-2；
C. kind plants BF1-1And BF1-2, florescence makees hybridization BF1-1 ×BF1-2→BF1-12；
D. kind plants BF1-12, obtain BF2-12；
E. the light seeding BF on nonirrigated farmland2-12, sow spray and poured a water, do not watered in whole seedling stage afterwards, 28 days seedling stages Screening of drought resistance is carried out to rice shoot afterwards, removes tillering ability is poor, plant stalk is thin and delicate seedling, retain tillering ability by force, plant stalk and The vigorous rice seedling of leaf growth, the individual plant 260-300 strains individual plant receipts that rice straw is sturdy, blade keeps green not early ageing are selected after ripe Plant to obtain BF3-12；
F. BF is planted in dry farming in a manner of strain3-12, each strain sowing 100, sowed spray and poured a water, afterwards Whole seedling stage do not water, screening of drought resistance is carried out to rice shoot after 28 days seedling stages, removes that tillering ability is poor, plant stalk is thin and delicate Seedling, each cell retain 40 plants of the rice seedling that tillering ability is strong, plant stalk and leaf growth are vigorous, maturity period selection rice straw is sturdy, Blade keeps 300 plants of neat mud of individual plant of individual plant of green not early ageing to cut off sowing, paddy and rice straw is distinguished into listing mark, rice straw enters Row crude protein content determines, and seed corresponding to screening rice straw crude protein content 30 parts of rice straws of highest, obtains BF4-12；
G. strain sowing BF is continued4-12, florescence makees hybridization P × BF4-12Obtain B2F1-12, dry farming plantation B2F1-12, obtain B2F2-12；
H. the light seeding B on nonirrigated farmland2F2-12, sow spray and poured a water, do not watered in whole seedling stage afterwards, 28 days seedling stages Screening of drought resistance is carried out to rice shoot afterwards, removes tillering ability is poor, plant stalk is thin and delicate seedling, retain tillering ability by force, plant stalk and The vigorous rice seedling of leaf growth, selects that rice straw is sturdy, blade keeps 240 plants of individual plant sowings of individual plant of green not early ageing to obtain after ripe B2F3-12；
I. B is planted in dry farming in a manner of strain2F3-12, each strain sowing 100, sowed spray and poured a water, afterwards Whole seedling stage do not water, screening of drought resistance is carried out to rice shoot after 28 days seedling stages, removes that tillering ability is poor, plant stalk is thin and delicate Seedling, each cell retain 40 plants of the rice seedling that tillering ability is strong, plant stalk and leaf growth are vigorous, maturity period selection rice straw is sturdy, Blade keeps 200 plants of neat mud of individual plant of individual plant of green not early ageing to cut off sowing, paddy and rice straw is distinguished into listing mark, paddy goes out After rough and rice straw carries out crude protein content measure respectively, and screening brown rice crude protein content is higher than 12%, and corresponding rice straw crude protein Content is higher than 7% 30 parts of strain, obtains B2F4-12；
J. strain mode dry farming plantation B2F4-12, each strain sows 50, sow to spray and poured a water, whole afterwards Individual seedling stage is not watered, and screening of drought resistance is carried out to rice shoot after 28 days seedling stages, removes the seedling that tillering ability is poor, plant stalk is thin and delicate, often Individual cell retains 20 plants of the rice seedling that tillering ability is strong, plant stalk and leaf growth are vigorous, and maturity period selection rice straw is sturdy, blade is protected Hold green not early ageing, 80 plants of neat mud of individual plant of individual plant that tassel is big, setting percentage is high cut off sowing, paddy and rice straw are listed mark respectively Note, paddy go out rough rear and rice straw and carry out crude protein content measure respectively, and screening brown rice crude protein content is higher than 12%, and corresponding Rice straw crude protein content is higher than 7% 20 parts of strain, obtains B2F5-12；
K. to 20 parts of B2F5-12Strain carry out repeat yield trials, choose most high yield strain i.e. incubation can with dry farming cultivation, The dual-purpose mixed fodder rice varieties of paddy stalk of high yield.
The feed rice varieties are any of " Hunan morning Xian 24 " and " Hunan morning Xian 32 "；The glutathione transferasc product Kind is " southeast 201 " and " any of southeast 202 "；The upland rice variety is any in " Shanghai drought 7 " and " facing drought 1 " Kind.
Beneficial effects of the present invention：
Using the inventive method can select high yield, high nutrition the dual-purpose mixed fodder upland rice variety of paddy stalk, the forage rice The crude protein content that kind can make upland rice cultivation, yield height, paddy and straw is above common rice varieties, can make full use of dry land And mountain planting, kind of a rice water more than 60% is saved, makes full use of rice straw resource, every mu can increase income more than 400 yuan. The selection science, easy, efficient, the seed selection and national food security to feeding upland rice variety are significant.
Embodiment：
Embodiment 1：
Feed rice varieties " Hunan morning Xian 24 " are selected to make basic parent P, " southeast 201 " and high yield are degeneration-resistant for glutathione transferasc kind Property strong upland rice variety " Shanghai drought 7 " make general parent P1 and P2 respectively, comprise the following steps that：
A. kind plants parent P, P1 and P2, makees hybridization P × P1 → F in florescence1-1, P × P2 → F1-2；
B. kind plants hybridization F1For F1-1、F1-2With parent P, make hybridization P × F in florescence1-1With P × F1-2, F must be returned1Generation BF1-1And BF1-2；
C. kind plants BF1-1And BF1-2, florescence makees hybridization BF1-1 ×BF1-2→BF1-12；
D. kind plants BF1-12, obtain BF2-12；
E. the light seeding BF on nonirrigated farmland2-12, sow spray and poured a water, do not watered in whole seedling stage afterwards, 28 days seedling stages Screening of drought resistance is carried out to rice shoot afterwards, removes tillering ability is poor, plant stalk is thin and delicate seedling, retain tillering ability by force, plant stalk and The vigorous rice seedling of leaf growth, selects that rice straw is sturdy, blade keeps 260 plants of individual plant sowings of individual plant of green not early ageing to obtain after ripe BF3-12；
F. BF is planted in dry farming in a manner of strain3-12, each strain sowing 100, sowed spray and poured a water, afterwards Whole seedling stage do not water, screening of drought resistance is carried out to rice shoot after 28 days seedling stages, removes that tillering ability is poor, plant stalk is thin and delicate Seedling, each cell retain 40 plants of the rice seedling that tillering ability is strong, plant stalk and leaf growth are vigorous, maturity period selection rice straw is sturdy, Blade keeps 300 plants of neat mud of individual plant of individual plant of green not early ageing to cut off sowing, paddy and rice straw is distinguished into listing mark, rice straw enters Row crude protein content determines, and seed corresponding to screening rice straw crude protein content 30 parts of rice straws of highest, obtains BF4-12；
G. strain sowing BF is continued4-12, florescence makees hybridization P × BF4-12Obtain B2F1-12, dry farming plantation B2F1-12, obtain B2F2-12；
H. the light seeding B on nonirrigated farmland2F2-12, sow spray and poured a water, do not watered in whole seedling stage afterwards, 28 days seedling stages Screening of drought resistance is carried out to rice shoot afterwards, removes tillering ability is poor, plant stalk is thin and delicate seedling, retain tillering ability by force, plant stalk and The vigorous rice seedling of leaf growth, selects that rice straw is sturdy, blade keeps 240 plants of individual plant sowings of individual plant of green not early ageing to obtain after ripe B2F3-12；
I. B is planted in dry farming in a manner of strain2F3-12, each strain sowing 100, sowed spray and poured a water, afterwards Whole seedling stage do not water, screening of drought resistance is carried out to rice shoot after 28 days seedling stages, removes that tillering ability is poor, plant stalk is thin and delicate Seedling, each cell retain 40 plants of the rice seedling that tillering ability is strong, plant stalk and leaf growth are vigorous, maturity period selection rice straw is sturdy, Blade keeps 200 plants of neat mud of individual plant of individual plant of green not early ageing to cut off sowing, paddy and rice straw is distinguished into listing mark, paddy goes out After rough and rice straw carries out crude protein content measure respectively, and screening brown rice crude protein content is higher than 12%, and corresponding rice straw crude protein Content is higher than 7% 30 parts of strain, obtains B2F4-12；
J. strain mode dry farming plantation B2F4-12, each strain sows 50, sow to spray and poured a water, whole afterwards Individual seedling stage is not watered, and screening of drought resistance is carried out to rice shoot after 28 days seedling stages, removes the seedling that tillering ability is poor, plant stalk is thin and delicate, often Individual cell retains 20 plants of the rice seedling that tillering ability is strong, plant stalk and leaf growth are vigorous, and maturity period selection rice straw is sturdy, blade is protected Hold green not early ageing, 80 plants of neat mud of individual plant of individual plant that tassel is big, setting percentage is high cut off sowing, paddy and rice straw are listed mark respectively Note, paddy go out rough rear and rice straw and carry out crude protein content measure respectively, and screening brown rice crude protein content is higher than 12%, and corresponding Rice straw crude protein content is higher than 7% 20 parts of strain, obtains B2F5-12；
K. to 20 parts of B2F5-12Strain carry out repeat yield trials, choose most high yield strain i.e. incubation can with dry farming cultivation, The dual-purpose mixed fodder rice varieties of paddy stalk of high yield.
The dual-purpose mixed fodder upland rice variety of the paddy stalk can make the crude protein content of upland rice cultivation, yield height, paddy and straw Common rice varieties are above, dry land and mountain planting can be made full use of, kind of a rice water more than 60% is saved, makes full use of rice straw to provide Source, every mu can increase income more than 400 yuan.
Embodiment 2：
Feed rice varieties " Hunan morning Xian 32 " are selected to make basic parent P, " southeast 202 " and high yield are degeneration-resistant for glutathione transferasc kind Property strong upland rice variety " facing drought 1 " make general parent P1 and P2 respectively, comprise the following steps that：
A. kind plants parent P, P1 and P2, makees hybridization P × P1 → F in florescence1-1, P × P2 → F1-2；
B. kind plants hybridization F1For F1-1、F1-2With parent P, make hybridization P × F in florescence1-1With P × F1-2, F must be returned1Generation BF1-1And BF1-2；
C. kind plants BF1-1And BF1-2, florescence makees hybridization BF1-1 ×BF1-2→BF1-12；
D. kind plants BF1-12, obtain BF2-12；
E. the light seeding BF on nonirrigated farmland2-12, sow spray and poured a water, do not watered in whole seedling stage afterwards, 28 days seedling stages Screening of drought resistance is carried out to rice shoot afterwards, removes tillering ability is poor, plant stalk is thin and delicate seedling, retain tillering ability by force, plant stalk and The vigorous rice seedling of leaf growth, selects that rice straw is sturdy, blade keeps 300 plants of individual plant sowings of individual plant of green not early ageing to obtain after ripe BF3-12；
F. BF is planted in dry farming in a manner of strain3-12, each strain sowing 100, sowed spray and poured a water, afterwards Whole seedling stage do not water, screening of drought resistance is carried out to rice shoot after 28 days seedling stages, removes that tillering ability is poor, plant stalk is thin and delicate Seedling, each cell retain 40 plants of the rice seedling that tillering ability is strong, plant stalk and leaf growth are vigorous, maturity period selection rice straw is sturdy, Blade keeps 300 plants of neat mud of individual plant of individual plant of green not early ageing to cut off sowing, paddy and rice straw is distinguished into listing mark, rice straw enters Row crude protein content determines, and seed corresponding to screening rice straw crude protein content 30 parts of rice straws of highest, obtains BF4-12；
G. strain sowing BF is continued4-12, florescence makees hybridization P × BF4-12Obtain B2F1-12, dry farming plantation B2F1-12, obtain B2F2-12；
H. the light seeding B on nonirrigated farmland2F2-12, sow spray and poured a water, do not watered in whole seedling stage afterwards, 28 days seedling stages Screening of drought resistance is carried out to rice shoot afterwards, removes tillering ability is poor, plant stalk is thin and delicate seedling, retain tillering ability by force, plant stalk and The vigorous rice seedling of leaf growth, selects that rice straw is sturdy, blade keeps 240 plants of individual plant sowings of individual plant of green not early ageing to obtain after ripe B2F3-12；
I. B is planted in dry farming in a manner of strain2F3-12, each strain sowing 100, sowed spray and poured a water, afterwards Whole seedling stage do not water, screening of drought resistance is carried out to rice shoot after 28 days seedling stages, removes that tillering ability is poor, plant stalk is thin and delicate Seedling, each cell retain 40 plants of the rice seedling that tillering ability is strong, plant stalk and leaf growth are vigorous, maturity period selection rice straw is sturdy, Blade keeps 200 plants of neat mud of individual plant of individual plant of green not early ageing to cut off sowing, paddy and rice straw is distinguished into listing mark, paddy goes out After rough and rice straw carries out crude protein content measure respectively, and screening brown rice crude protein content is higher than 12%, and corresponding rice straw crude protein Content is higher than 7% 30 parts of strain, obtains B2F4-12；
J. strain mode dry farming plantation B2F4-12, each strain sows 50, sow to spray and poured a water, whole afterwards Individual seedling stage is not watered, and screening of drought resistance is carried out to rice shoot after 28 days seedling stages, removes the seedling that tillering ability is poor, plant stalk is thin and delicate, often Individual cell retains 20 plants of the rice seedling that tillering ability is strong, plant stalk and leaf growth are vigorous, and maturity period selection rice straw is sturdy, blade is protected Hold green not early ageing, 80 plants of neat mud of individual plant of individual plant that tassel is big, setting percentage is high cut off sowing, paddy and rice straw are listed mark respectively Note, paddy go out rough rear and rice straw and carry out crude protein content measure respectively, and screening brown rice crude protein content is higher than 12%, and corresponding Rice straw crude protein content is higher than 7% 20 parts of strain, obtains B2F5-12；
K. to 20 parts of B2F5-12Strain carry out repeat yield trials, choose most high yield strain i.e. incubation can with dry farming cultivation, The dual-purpose mixed fodder rice varieties of paddy stalk of high yield.
The dual-purpose mixed fodder upland rice variety of the paddy stalk can make the crude protein content of upland rice cultivation, yield height, paddy and straw Common rice varieties are above, dry land and mountain planting can be made full use of, kind of a rice water more than 60% is saved, makes full use of rice straw to provide Source, every mu can increase income more than 400 yuan.
The foregoing is only presently preferred embodiments of the present invention, all equivalent changes done according to scope of the present invention patent with Modification, it should all belong to the covering scope of the present invention.

Claims (2)

  1. A kind of 1. selection of feed upland rice variety, it is characterised in that：The selection comprises the following steps：
    （1）Juvenile stage：Select high yield, brown rice gross protein value to be more than forage rice of the 12%, brown rice yield more than 80% and make basis parent This P；The upland rice of glutathione transferasc and high yield strong stress resistance makees general parent P1 and P2 respectively；
    （2）Hybridize method for group matching：The parent P based on forage rice, to make genetic constitutions of the P in hybrid generation account for 7/8, keep Its high yield high protein integrates merit, using following hybridization method for group matching：
    Hybridize for the first time：P×P1→F1-1；P×P2→F1-2；
    Second of hybridization：P×F1-1→BF1-1；P×F1-2→BF1-2；
    Third time hybridizes：BF1-1×BF1-2→BF1-12；By BF1-12Sowed, planted and screened to obtain BF4-12；
    4th hybridization：P×BF4-12→B2F1-12；
    （3）The plantation and filial generation system of selection of each inbreeding generation：
    A. kind plants parent P, P1 and P2, makees hybridization P × P1 → F in florescence1-1, P × P2 → F1-2；
    B. kind plants hybridization F1For F1-1、F1-2With parent P, make hybridization P × F in florescence1-1With P × F1-2, F must be returned1For BF1-1 And BF1-2；
    C. kind plants BF1-1And BF1-2, florescence makees hybridization BF1-1 ×BF1-2→BF1-12；
    D. kind plants BF1-12, obtain BF2-12；
    E. the light seeding BF on nonirrigated farmland2-12, sow spray and poured a water, do not watered in whole seedling stage afterwards, it is right after 28 days seedling stages Rice shoot carries out screening of drought resistance, removes the seedling that tillering ability is poor, plant stalk is thin and delicate, retains strong tillering ability, plant stalk and blade Eugonic rice seedling, selects that rice straw is sturdy, blade keeps the individual plant 260-300 strain individual plant sowings of green not early ageing to obtain after ripe BF3-12；
    F. BF is planted in dry farming in a manner of strain3-12, each strain sows 100, sow to spray and poured a water, whole afterwards Seedling stage is not watered, and screening of drought resistance is carried out to rice shoot after 28 days seedling stages, removes the seedling that tillering ability is poor, plant stalk is thin and delicate, each Cell retains 40 plants of the rice seedling that tillering ability is strong, plant stalk and leaf growth are vigorous, and maturity period selection rice straw is sturdy, blade is kept 300 plants of neat mud of individual plant of individual plant of green not early ageing cut off sowing, paddy and rice straw are distinguished into listing mark, rice straw carries out crude protein Assay, seed corresponding to screening rice straw crude protein content 30 parts of rice straws of highest, obtains BF4-12；
    G. strain sowing BF is continued4-12, florescence makees hybridization P × BF4-12Obtain B2F1-12, dry farming plantation B2F1-12, obtain B2F2-12；
    H. the light seeding B on nonirrigated farmland2F2-12, sow spray and poured a water, do not watered in whole seedling stage afterwards, it is right after 28 days seedling stages Rice shoot carries out screening of drought resistance, removes the seedling that tillering ability is poor, plant stalk is thin and delicate, retains strong tillering ability, plant stalk and blade Eugonic rice seedling, selects that rice straw is sturdy, blade keeps 240 plants of individual plant sowings of individual plant of green not early ageing to obtain after ripe B2F3-12；
    I. B is planted in dry farming in a manner of strain2F3-12, each strain sows 100, sow to spray and poured a water, whole afterwards Individual seedling stage is not watered, and screening of drought resistance is carried out to rice shoot after 28 days seedling stages, removes the seedling that tillering ability is poor, plant stalk is thin and delicate, often Individual cell retains 40 plants of the rice seedling that tillering ability is strong, plant stalk and leaf growth are vigorous, and maturity period selection rice straw is sturdy, blade is protected The 200 plants of neat mud of individual plant of individual plant for holding green not early ageing cut off sowing, and paddy and rice straw distinguished into listing mark, paddy go out it is rough after and Rice straw carries out crude protein content measure respectively, and screening brown rice crude protein content is higher than 12%, and corresponding rice straw crude protein content is high In 7% 30 parts of strain, B is obtained2F4-12；
    J. strain mode dry farming plantation B2F4-12, each strain sowing 50, sowed spray and poured a water, in whole seedling afterwards Phase is not watered, and screening of drought resistance is carried out to rice shoot after 28 days seedling stages, removes the seedling that tillering ability is poor, plant stalk is thin and delicate, Mei Ge little Area retains 20 plants of the rice seedling that tillering ability is strong, plant stalk and leaf growth are vigorous, and maturity period selection rice straw is sturdy, blade keeps green Color not early ageing, 80 plants of neat mud of individual plant of individual plant that tassel is big, setting percentage is high cut off sowing, and paddy and rice straw are distinguished into listing mark, Paddy goes out rough rear and rice straw and carries out crude protein content measure respectively, and screening brown rice crude protein content is higher than 12%, and corresponding rice straw Crude protein content is higher than 7% 20 parts of strain, obtains B2F5-12；
    K. to 20 parts of B2F5-12Strain carries out repeating yield trials, and the strain i.e. incubation for choosing most high yield can be with dry farming cultivation, high yield The dual-purpose mixed fodder rice varieties of paddy stalk.
  2. A kind of 2. selection of feed upland rice variety according to claim 1, it is characterised in that：The forage rice product Kind is any of " Hunan morning Xian 24 " and " Hunan morning Xian 32 "；The glutathione transferasc kind is " southeast 201 " and " southeast Any of 202 "；The upland rice variety is any of " Shanghai drought 7 " and " facing drought 1 ".
CN201610131401.XA 2016-03-09 2016-03-09 A kind of selection of feed upland rice variety Expired - Fee Related CN105724242B (en)

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