CN109452099A - The method for screening drought-enduring flax kind - Google Patents
The method for screening drought-enduring flax kind Download PDFInfo
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- CN109452099A CN109452099A CN201811610000.8A CN201811610000A CN109452099A CN 109452099 A CN109452099 A CN 109452099A CN 201811610000 A CN201811610000 A CN 201811610000A CN 109452099 A CN109452099 A CN 109452099A
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- 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
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- 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
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
- A01G24/10—Growth substrates; Culture media; Apparatus or methods therefor based on or containing inorganic material
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- 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
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
- A01G24/20—Growth substrates; Culture media; Apparatus or methods therefor based on or containing natural organic material
-
- 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
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
- A01G24/20—Growth substrates; Culture media; Apparatus or methods therefor based on or containing natural organic material
- A01G24/22—Growth substrates; Culture media; Apparatus or methods therefor based on or containing natural organic material containing plant material
-
- 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
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
- A01G24/20—Growth substrates; Culture media; Apparatus or methods therefor based on or containing natural organic material
- A01G24/22—Growth substrates; Culture media; Apparatus or methods therefor based on or containing natural organic material containing plant material
- A01G24/25—Dry fruit hulls or husks, e.g. chaff or coir
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- 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
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
- A01G24/30—Growth substrates; Culture media; Apparatus or methods therefor based on or containing synthetic organic compounds
-
- 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
- A01G31/00—Soilless cultivation, e.g. hydroponics
Abstract
The invention discloses a kind of methods for screening drought-enduring flax kind to sow in cultivation bed later, after planting be covered with matrix comprising steps of selected full seed, uniformity, disease-free linseed seed carry out disinfection；Obtained flax seedling is divided into 2 groups of Osmotic treatment group, 1 group of control and control；Osmotic treatment group is planted using organic ecological cultivation matrix, and thinning starts Osmotic treatment after 5 days, the relative humidity staged of matrix is down to 30%, and maintains arid；It compares 1 group to plant using organic ecological cultivation matrix, the relative humidity of matrix is maintained 75% always；It compares 2 groups to plant using soil matrix, the relative humidity of matrix is maintained 75% always；The underground part dry weight of Osmotic treatment group, every plant of flax for compareing 1 group and compareing 2 groups is counted respectively；Calculate each flax kind drought-resistant ability value.This method is at low cost, and drought-enduring accuracy in detection is high, and detection cycle is short, easily operated, convenient in each local promotion and implementation.
Description
Technical field
The present invention relates to plant variety screening technique fields, and in particular to a method of screen drought-enduring flax kind.
Background technique
Flax is important one of the oil crops in China, in addition to being rich in polyunsaturated fatty acid-α-flax needed by human
Acid, flaxseed is also containing other important active constituents, such as flax lignan, dietary fiber.Lignan content in flaxseed
It is 800 times or so of other common crops, flax lignan has antitumor, anti-osteoporosis and slows down the function such as menopause symptom
Effect.Also rich in Soluble plant fibers element in flaxseed, have the function of reducing cholesterol.Often edible flaxseed, can drop
The disease incidence of the diseases such as low constipation, obesity, heart disease.Flax is mainly distributed on Shanxi, Gansu, Ningxia, Inner Mongol etc. in China
It saves, often there is drought stress in arid season or Arid&semi-arid area, seriously affect the production of flax.Therefore, it improves and makees
The drought resistance of article kind has become the key subjects of arid and semi-arid area agricultural research；And accurately has both and make article
The drought resistance of kind is the necessary basis for cultivating drought-resistant variety.Drought resisting identification is exactly to carry out by the drought-resistant ability size of crop varieties
Screening, evaluation and the process sorted out；High-quality germplasm can be provided for Drought-resistant Breeding by being identified by drought resisting.Although different researchers from
Various aspects are studied work to the drought resisting of flax, have carried out beneficial discussion for understanding flax drought resistance, but existing drought-enduring
There is accurate low disadvantage in the screening of flax kind, it is easy to control, easy to operate and high accuracy drought-enduring to lack a kind of planting environment
The method of flax kind.
Summary of the invention
For the defects in the prior art, the present invention provides a kind of method for screening drought-enduring flax kind, the screening technique
At low cost, drought-enduring accuracy in detection is high, and detection cycle is short, easily operated, convenient in each local promotion and implementation.
To achieve the above object, technical solution provided by the invention are as follows:
The present invention provides a kind of method for screening drought-enduring flax kind, comprising steps of step S1, selected full seed,
Uniformity, disease-free linseed seed carry out disinfection, and are after planting covered later with matrix in cultivation bed with drilling method sowing；
Thinning is carried out when rear blade number of emerging reaches 5/6, chooses the consistent strong seedling of growing way, and each cultivation bed stays 50 plants of flax seedlings；
Wherein, matrix is organic ecological cultivation matrix or soil matrix；The relative humidity control of matrix is 75%；Step S2, by flax
Seedling is divided into 2 groups of Osmotic treatment group, 1 group of control and control；Osmotic treatment group is planted using organic ecological cultivation matrix, and thinning 5 days
After start Osmotic treatment, the relative humidity staged of matrix is down to 30%, and maintains several days of arid；1 group is compareed using organic
The plantation of ecological cultivation matrix, the relative humidity of matrix are maintained 75% always；2 groups are compareed to plant using soil matrix, matrix
Relative humidity is maintained 75% always；Step S3 counts Osmotic treatment group, 1 group of control and every plant of flax for compareing 2 groups respectively
Underground part dry weight, the average value of 50 plants of flax underground part dry weights is the cultivation bed flax underground part dry weight in single cultivation bed,
The average value of the flax underground part dry weight of every group of corresponding multiple cultivation beds is the flax underground part dry weight of the group；Step S4,
Each flax kind drought-resistant ability value is calculated, drought-resistant ability value is bigger, illustrates that corresponding flax kind drought-resistant ability is stronger；Single Hu
Numb kind drought-resistant ability value=(the kind Osmotic treatment group is with respect to underground part dry weight/all identification of species Osmotic treatment group phase
To the average value of underground part dry weight) × (the kind Osmotic treatment group with respect to underground part dry weight/1 group of varietal check relatively under
Portion's dry weight)；Wherein, Osmotic treatment group is dry with respect to underground part dry weight=Osmotic treatment group underground part dry weight/2 groups of control underground part
Weight compares 1 group of opposite underground part dry weight=1 group of control underground part dry weight/2 groups of control underground part dry weight.It should be noted that being
The accuracy of drought-resistant ability identification using relative value excludes to plant when single flax kind drought-resistant ability value calculates
Train background interference caused by matrix.
Preferably, in step S1, the raw material components of organic ecological cultivation matrix include corn stover, decomposed cow dung, rice husk,
Bone slag, clinker and wormcast；Organic ecological cultivation matrix is decomposed using primary fermentation.
It is further preferred that in step S1, the quality of corn stover, decomposed cow dung, rice husk, bone slag, clinker and wormcast
Than for 2:4:1:1:2:5.
Preferably, in step S1, added with 1g carbendazim in every 10L organic ecological cultivation matrix.
Preferably, in step S1, the physicochemical property of organic ecological cultivation matrix includes: that bulk density is 0.75g/cm3, total pore space
Degree is 80%, ventilating slit 18%, and water holding hole is 62%, pH value 6.9, conductivity 3.36ms/cm, cation exchange
Amount is 59cmol/kg.
Preferably, entire screening process carries out in intelligent greenhouse, and greenhouse air relative humidity remains 65%, and temperature is
20℃。
Preferably, in step S1, a length of 40cm, width 40cm, the depth 30cm of cultivation bed.
Preferably, in step S1, the cladding thickness of matrix is 1.5~2.5cm, preferably 2cm.
Preferably, in step S2,2 groups of Osmotic treatment group, 1 group of control and control respectively include three cultivation beds.
Preferably, in step S2, several days are 25 days.
Technical solution provided by the invention, have it is following the utility model has the advantages that
(1) for plant, the development degree of underground root system determines the power of drought-resistant ability；Intend according to underground root system
Development degree identify the drought resistance of kindred plant different cultivars, but the development degree of root system is affected by matrix.It plants
Training discrete phase is more suitable for the growth of root system of plant for soil, for example cultivation matrix total porosity is bigger than soil matrix.For
The growing environment built to root system, it is necessary first to develop and a be suitble to the cultivation of plants matrix.The present invention passes through research
Influence of the different formulations matrix to flax growth potential, plant Photosynthetic Index, root system, yield and quality, it is determined that the organic life of flax
The most adaptation side of state cultivation matrix, good using the cultivation matrix one side plant growing way compared with field planting, yield and quality
It is promoted, on the other hand can reduce the use of chemical fertilizer, pesticide, water-saving fertilizer-saving.
(2) studies have shown that the drought resistance of different flax kinds is closely related with underground part dry weight；Screening provided by the invention
The method of drought-enduring flax kind is at low cost, and drought-enduring accuracy in detection is high, and detection cycle is short, easily operated, convenient in each place
Promotion and implementation.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Specific embodiment
Below in conjunction with the embodiment of the present invention, technical solution of the present invention is clearly and completely described.Implement below
Example is only used for clearly illustrating technical solution of the present invention, therefore is intended only as example, and cannot be used as a limitation and limit this hair
Bright protection scope.
Experimental method in following embodiments is unless otherwise specified conventional method.Examination as used in the following examples
Material is tested, is to be commercially available from regular shops unless otherwise specified.Quantitative test in following embodiment, is respectively provided with three
Secondary to repeat to test, data are the average value or mean+SD of three repeated experiments.
Embodiment
The present embodiment provides a kind of method for screening drought-enduring flax kind, entire screening process carries out in intelligent greenhouse,
Greenhouse air relative humidity remains 65%, and temperature is 20 DEG C, and screening specifically includes step:
Step S1 (flax sowing): selected full seed, uniformity, disease-free linseed seed carry out disinfection, and sow later
It in the cultivation bed that a length of 40cm, width 40cm, depth are 30cm, is planted with drilling method, keeps reasonable spacing in the rows；After planting use base
Matter covers 2cm；
Thinning is carried out when rear blade number of emerging reaches 5/6, chooses the consistent strong seedling of growing way, is keeping reasonable spacing in the rows
On the basis of, each cultivation bed stays 50 plants of flax seedlings；Wherein, matrix is organic ecological cultivation matrix or soil matrix；From sowing one
Before Osmotic treatment, the relative humidity control of the matrix of all cultivation beds is 75%；The raw material group of organic ecological cultivation matrix
Divide crushing maize stalk, decomposed cow dung, rice husk, bone slag, clinker and the wormcast for including mass ratio for 2:4:1:1:2:5, every
Added with 1g carbendazim in 10L organic ecological cultivation matrix, organic ecological cultivation matrix is decomposed using primary fermentation；Ecological organic is planted
It trains when matrix uses and is tamped without pressing deliberately, the physicochemical property of the organic ecological cultivation matrix is as follows: bulk density is
0.75g/cm3, total porosity 80%, ventilating slit 18%, water holding hole is 62%, pH value 6.9, and conductivity is
3.36ms/cm, cation exchange capacity (CEC) 59cmol/kg.
Step S2 (Osmotic treatment): flax seedling is divided into 2 groups of Osmotic treatment group, 1 group of control and control；Each processing 3
Cultivation bed, every slot stays 50 plants of flax seedlings after thinning:
Osmotic treatment group (cultivation matrix Osmotic treatment): being planted using organic ecological cultivation matrix, and thinning hops to it after 5 days
Drought processing, staged is down to 30% to the relative humidity of matrix within a certain period of time, and maintains arid 25 days；
It compares 1 group (cultivation matrix water content is normal): being planted using organic ecological cultivation matrix, the relative humidity of matrix begins
It is maintained 75% eventually；
It compares 2 groups (soil matrix water content is normal): being planted using soil matrix, the relative humidity of matrix is maintained always
75%.
Step S3 (data statistics): the underground of Osmotic treatment group, every plant of flax for compareing 1 group and compareing 2 groups is counted respectively
Portion's dry weight, every plant of meter are averaged three times, the underground part dry weight of as this plant flax；
The average value of 50 plants of flax underground part dry weights is the cultivation bed flax underground part dry weight in single cultivation bed, and every group
The average value of the flax underground part dry weight of corresponding three cultivation beds is the flax underground part dry weight of the group.
Step S4 (drought-resistant ability value calculates and drought-resistance ability identification): each flax kind drought-resistant ability value, drought resisting are calculated
Ability value is bigger, illustrates that corresponding flax kind drought-resistant ability is stronger；
Single flax kind drought-resistant ability value=(the kind Osmotic treatment group is with respect to underground part dry weight/all identification of species
Osmotic treatment group with respect to underground part dry weight average value) × (the kind Osmotic treatment group is with respect to the underground part dry weight/kind pair
According to 1 group of opposite underground part dry weight)；
Wherein, Osmotic treatment group is dry with respect to underground part dry weight=Osmotic treatment group underground part dry weight/2 groups of control underground part
Weight；
Compare 1 group of opposite underground part dry weight=1 group of control underground part dry weight/2 groups of control underground part dry weight.
Comparative example 1
This comparative example provides a kind of method for screening drought-enduring flax kind, and entire screening process carries out in intelligent greenhouse,
Greenhouse air relative humidity remains 65%, and temperature is 20 DEG C, and screening specifically includes step:
Step S1 (flax sowing): selected full seed, uniformity, disease-free linseed seed carry out disinfection, and sow later
It in the cultivation bed that a length of 40cm, width 40cm, depth are 30cm, is planted with drilling method, keeps reasonable spacing in the rows；After planting use base
Matter covers 2cm；
Thinning is carried out when rear blade number of emerging reaches 5/6, chooses the consistent strong seedling of growing way, is keeping reasonable spacing in the rows
On the basis of, each cultivation bed stays 50 plants of flax seedlings；Wherein, matrix is organic ecological cultivation matrix or soil matrix；From sowing one
Before Osmotic treatment, the relative humidity control of the matrix of all cultivation beds is 75%；The raw material group of organic ecological cultivation matrix
Divide crushing maize stalk, decomposed cow dung, rice husk, bone slag, clinker and the wormcast for including mass ratio for 4:4:1:1:2:5, every
Added with 1g carbendazim in 10L organic ecological cultivation matrix, organic ecological cultivation matrix is decomposed using primary fermentation；Ecological organic is planted
It trains when matrix uses and is tamped without pressing deliberately.
Step S2 (Osmotic treatment): flax seedling is divided into 2 groups of Osmotic treatment group, 1 group of control and control；Each processing 3
Cultivation bed, every slot stays 50 plants of flax seedlings after thinning:
Osmotic treatment group (cultivation matrix Osmotic treatment): being planted using organic ecological cultivation matrix, and thinning hops to it after 5 days
Drought processing, staged is down to 30% to the relative humidity of matrix within a certain period of time, and maintains arid 25 days；
It compares 1 group (cultivation matrix water content is normal): being planted using organic ecological cultivation matrix, the relative humidity of matrix begins
It is maintained 75% eventually；
It compares 2 groups (soil matrix water content is normal): being planted using soil matrix, the relative humidity of matrix is maintained always
75%.
Step S3 (data statistics): the underground of Osmotic treatment group, every plant of flax for compareing 1 group and compareing 2 groups is counted respectively
Portion's dry weight, every plant of meter are averaged three times, the underground part dry weight of as this plant flax；
The average value of 50 plants of flax underground part dry weights is the cultivation bed flax underground part dry weight in single cultivation bed, and every group
The average value of the flax underground part dry weight of corresponding three cultivation beds is the flax underground part dry weight of the group.
Step S4 (drought-resistant ability value calculates and drought-resistance ability identification): each flax kind drought-resistant ability value, drought resisting are calculated
Ability value is bigger, illustrates that corresponding flax kind drought-resistant ability is stronger；
Single flax kind drought-resistant ability value=(the kind Osmotic treatment group is with respect to underground part dry weight/all identification of species
Osmotic treatment group with respect to underground part dry weight average value) × (the kind Osmotic treatment group is with respect to the underground part dry weight/kind pair
According to 1 group of opposite underground part dry weight)；
Wherein, Osmotic treatment group is dry with respect to underground part dry weight=Osmotic treatment group underground part dry weight/2 groups of control underground part
Weight；
Compare 1 group of opposite underground part dry weight=1 group of control underground part dry weight/2 groups of control underground part dry weight.
Comparative example 2
This comparative example provides a kind of method for screening drought-enduring flax kind, and entire screening process carries out in intelligent greenhouse,
Greenhouse air relative humidity remains 65%, and temperature is 20 DEG C, and screening specifically includes step:
Step S1 (flax sowing): selected full seed, uniformity, disease-free linseed seed carry out disinfection, and sow later
It in the cultivation bed that a length of 100cm, width 50cm, depth are 30cm, is planted with drilling method, keeps reasonable spacing in the rows；After planting use
Matrix covers 2cm；
Thinning is carried out when rear blade number of emerging reaches 5/6, chooses the consistent strong seedling of growing way, is keeping reasonable spacing in the rows
On the basis of, each cultivation bed stays 50 plants of flax seedlings；Wherein, matrix is organic ecological cultivation matrix or soil matrix；From sowing one
Before Osmotic treatment, the relative humidity control of the matrix of all cultivation beds is 75%；The raw material group of organic ecological cultivation matrix
Divide crushing maize stalk, decomposed cow dung, rice husk, clinker and the wormcast for including mass ratio for 2:4:1:3:5, it is organic in every 10L
Added with 1g carbendazim in ecological cultivation matrix, organic ecological cultivation matrix is decomposed using primary fermentation；Organic ecological cultivation matrix
It is tamped when use without pressing deliberately.
Step S2 (Osmotic treatment): flax seedling is divided into 2 groups of Osmotic treatment group, 1 group of control and control；Each processing 3
Cultivation bed, every slot stays 50 plants of flax seedlings after thinning:
Osmotic treatment group (cultivation matrix Osmotic treatment): being planted using organic ecological cultivation matrix, and thinning hops to it after 5 days
Drought processing, staged is down to 30% to the relative humidity of matrix within a certain period of time, and maintains arid 25 days；
It compares 1 group (cultivation matrix water content is normal): being planted using organic ecological cultivation matrix, the relative humidity of matrix begins
It is maintained 75% eventually；
It compares 2 groups (soil matrix water content is normal): being planted using soil matrix, the relative humidity of matrix is maintained always
75%.
Step S3 (data statistics): the underground of Osmotic treatment group, every plant of flax for compareing 1 group and compareing 2 groups is counted respectively
Portion's dry weight, every plant of meter are averaged three times, the underground part dry weight of as this plant flax；
The average value of 50 plants of flax underground part dry weights is the cultivation bed flax underground part dry weight in single cultivation bed, and every group
The average value of the flax underground part dry weight of corresponding three cultivation beds is the flax underground part dry weight of the group.
Step S4 (drought-resistant ability value calculates and drought-resistance ability identification): each flax kind drought-resistant ability value, drought resisting are calculated
Ability value is bigger, illustrates that corresponding flax kind drought-resistant ability is stronger；
Single flax kind drought-resistant ability value=(the kind Osmotic treatment group is with respect to underground part dry weight/all identification of species
Osmotic treatment group with respect to underground part dry weight average value) × (the kind Osmotic treatment group is with respect to the underground part dry weight/kind pair
According to 1 group of opposite underground part dry weight)；
Wherein, Osmotic treatment group is dry with respect to underground part dry weight=Osmotic treatment group underground part dry weight/2 groups of control underground part
Weight；
Compare 1 group of opposite underground part dry weight=1 group of control underground part dry weight/2 groups of control underground part dry weight.
Comparative example 3
This comparative example provides a kind of method for screening drought-enduring flax kind, and entire screening process carries out in intelligent greenhouse,
Greenhouse air relative humidity remains 65%, and temperature is 20 DEG C, and screening specifically includes step:
Step S1 (flax sowing): selected full seed, uniformity, disease-free linseed seed carry out disinfection, and sow later
It in the cultivation bed that a length of 40cm, width 40cm, depth are 30cm, is planted with drilling method, keeps reasonable spacing in the rows；After planting use base
Matter covers 2cm；
Thinning is carried out when rear blade number of emerging reaches 5/6, chooses the consistent strong seedling of growing way, is keeping reasonable spacing in the rows
On the basis of, each cultivation bed stays 50 plants of flax seedlings；Wherein, matrix is organic ecological cultivation matrix or soil matrix；From sowing one
Before Osmotic treatment, the relative humidity control of the matrix of all cultivation beds is 75%；The raw material group of organic ecological cultivation matrix
Divide decomposed cow dung, rice husk, bone slag, clinker and the wormcast for including mass ratio for 4:1:1:2:5, in every 10L organic ecological cultivation
Added with 1g carbendazim in matrix, organic ecological cultivation matrix is decomposed using primary fermentation；When organic ecological cultivation matrix uses not
Carry out pressing compacting deliberately.
Step S2 (Osmotic treatment): flax seedling is divided into 2 groups of Osmotic treatment group, 1 group of control and control；Each processing 3
Cultivation bed, every slot stays 50 plants of flax seedlings after thinning:
Osmotic treatment group (cultivation matrix Osmotic treatment): being planted using organic ecological cultivation matrix, and thinning hops to it after 5 days
Drought processing, staged is down to 30% to the relative humidity of matrix within a certain period of time, and maintains arid 25 days；
It compares 1 group (cultivation matrix water content is normal): being planted using organic ecological cultivation matrix, the relative humidity of matrix begins
It is maintained 75% eventually；
It compares 2 groups (soil matrix water content is normal): being planted using soil matrix, the relative humidity of matrix is maintained always
75%.
Step S3 (data statistics): the underground of Osmotic treatment group, every plant of flax for compareing 1 group and compareing 2 groups is counted respectively
Portion's dry weight, every plant of meter are averaged three times, the underground part dry weight of as this plant flax；
The average value of 50 plants of flax underground part dry weights is the cultivation bed flax underground part dry weight in single cultivation bed, and every group
The average value of the flax underground part dry weight of corresponding three cultivation beds is the flax underground part dry weight of the group.
Step S4 (drought-resistant ability value calculates and drought-resistance ability identification): each flax kind drought-resistant ability value, drought resisting are calculated
Ability value is bigger, illustrates that corresponding flax kind drought-resistant ability is stronger；
Single flax kind drought-resistant ability value=(the kind Osmotic treatment group is with respect to underground part dry weight/all identification of species
Osmotic treatment group with respect to underground part dry weight average value) × (the kind Osmotic treatment group is with respect to the underground part dry weight/kind pair
According to 1 group of opposite underground part dry weight)；
Wherein, Osmotic treatment group is dry with respect to underground part dry weight=Osmotic treatment group underground part dry weight/2 groups of control underground part
Weight；
Compare 1 group of opposite underground part dry weight=1 group of control underground part dry weight/2 groups of control underground part dry weight.
The flax underground part dry weight growing state of the embodiment of the present invention, comparative example 1 to comparative example 3 is observed, and in conventional sieve
The flax underground part dry weight that choosing method obtains compares, and concrete outcome is as shown in table 1 below.
Table 1 is different to organize other flax underground part dry weight growing state
It should be noted that unless otherwise indicated, technical term or scientific term used in this application should be this hair
The ordinary meaning that bright one of ordinary skill in the art are understood.Unless specifically stated otherwise, it otherwise illustrates in these embodiments
Component and opposite step, numerical expression and the numerical value of step are not limit the scope of the invention.It is illustrated and described herein
In all examples, unless otherwise prescribed, any occurrence should be construed as merely illustratively, not as limitation, because
This, other examples of exemplary embodiment can have different values.
In the description of the present invention, it is to be understood that, term " first ", " second " are used for description purposes only, and cannot
It is interpreted as indication or suggestion relative importance or implicitly indicates the quantity of indicated technical characteristic.Define as a result, " the
One ", the feature of " second " can explicitly or implicitly include one or more of the features.In the description of the present invention,
The meaning of " plurality " is two or more, unless otherwise specifically defined.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme should all cover within the scope of the claims and the description of the invention.
Claims (10)
1. a kind of method for screening drought-enduring flax kind, which is characterized in that comprising steps of
Step S1, selected full seed, uniformity, disease-free linseed seed carry out disinfection, and are being planted later with drilling method sowing
It trains in slot, is after planting covered with matrix；Thinning is carried out when rear blade number of emerging reaches 5/6, chooses the consistent strong seedling of growing way,
Each cultivation bed stays 50 plants of flax seedlings；Wherein, the matrix is organic ecological cultivation matrix or soil matrix；Matrix it is relatively wet
Degree control is 75%；
Flax seedling is divided into 2 groups of Osmotic treatment group, 1 group of control and control by step S2；Osmotic treatment group uses organic ecological cultivation
Matrix plantation, thinning start Osmotic treatment after 5 days, the relative humidity staged of matrix is down to 30%, and maintain several days of arid；
It compares 1 group to plant using organic ecological cultivation matrix, the relative humidity of matrix is maintained 75% always；2 groups are compareed using soil
Matrix plantation, the relative humidity of matrix are maintained 75% always；
Step S3 counts the underground part dry weight of Osmotic treatment group, every plant of flax for compareing 1 group and compareing 2 groups respectively, single to cultivate
The average value of 50 plants of flax underground part dry weights is the cultivation bed flax underground part dry weight, every group of corresponding multiple cultivation beds in slot
Flax underground part dry weight average value be the group flax underground part dry weight；
Step S4 calculates each flax kind drought-resistant ability value, and drought-resistant ability value is bigger, illustrates corresponding flax kind drought-resistant ability
It is stronger；Single flax kind drought-resistant ability value=(the kind Osmotic treatment group is dry with respect to underground part dry weight/all identification of species
Average value of the non-irrigated processing group with respect to underground part dry weight) × (the kind Osmotic treatment group is with respect to the underground part dry weight/varietal check 1
The opposite underground part dry weight of group)；Wherein, Osmotic treatment group is with respect to underground part dry weight=Osmotic treatment group underground part dry weight/2 groups of control
Underground part dry weight compares 1 group of opposite underground part dry weight=1 group of control underground part dry weight/2 groups of control underground part dry weight.
2. the method for the drought-enduring flax kind of screening according to claim 1, it is characterised in that:
In the step S1, the raw material components of the organic ecological cultivation matrix include corn stover, decomposed cow dung, rice husk, bone
Slag, clinker and wormcast；The organic ecological cultivation matrix is decomposed using primary fermentation.
3. the method for the drought-enduring flax kind of screening according to claim 2, it is characterised in that:
In the step S1, the corn stover, the decomposed cow dung, the rice husk, the bone slag, the clinker and the earthworm
The mass ratio of earthworm excrement is 2:4:1:1:2:5.
4. the method for the drought-enduring flax kind of screening according to claim 1, it is characterised in that:
In the step S1, added with 1g carbendazim in every 10L organic ecological cultivation matrix.
5. the method for the drought-enduring flax kind of screening according to claim 1, it is characterised in that:
In the step S1, the physicochemical property of the organic ecological cultivation matrix includes: that bulk density is 0.75g/cm3, total porosity is
80%, ventilating slit 18%, water holding hole is 62%, pH value 6.9, conductivity 3.36ms/cm, and cation exchange capacity (CEC) is
59cmol/kg。
6. the method for the drought-enduring flax kind of screening according to claim 1, it is characterised in that:
Entire screening process carries out in intelligent greenhouse, and greenhouse air relative humidity remains 65%, and temperature is 20 DEG C.
7. the method for the drought-enduring flax kind of screening according to claim 1, it is characterised in that:
In the step S1, a length of 40cm, width 40cm, the depth 30cm of the cultivation bed.
8. the method for the drought-enduring flax kind of screening according to claim 1, it is characterised in that:
In the step S1, the cladding thickness of matrix is 1.5~2.5cm, preferably 2cm.
9. the method for the drought-enduring flax kind of screening according to claim 1, it is characterised in that:
In the step S2, the Osmotic treatment group, 1 group of the control and 2 groups of the control respectively include three cultivation beds.
10. the method for the drought-enduring flax kind of screening according to claim 1, it is characterised in that:
In the step S2, several days are 25 days.
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