CN1616965A - Quantitative evaluation technology for plant salt telerance - Google Patents
Quantitative evaluation technology for plant salt telerance Download PDFInfo
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- CN1616965A CN1616965A CN 200310113318 CN200310113318A CN1616965A CN 1616965 A CN1616965 A CN 1616965A CN 200310113318 CN200310113318 CN 200310113318 CN 200310113318 A CN200310113318 A CN 200310113318A CN 1616965 A CN1616965 A CN 1616965A
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Abstract
The quantitative evaluation technology for plant salt tolerance features that plant salt tolerance limit is measured based on the relation between plant cell membrane damage degree and soil salt stress. After gradient salt stress and irrigation, the turning point for plant cell membrane to have repair capacity is measured and the corresponding soil water potential is used as the salt stress death point and as the data for evaluating plant's salt tolerance. The present invention may be used in determining proper plantation range correctly.
Description
Up to now, the plant salt tolerance ability all has no idea to carry out quantitative evaluation, all documents of forefathers all can only be by rule of thumb with sensation to plant carry out salt tolerant, than the salt tolerant or the fuzzy evaluation of salt tolerant not.Reach 3,300 ten thousand hm at China's alkaline land area
2, wherein salinization of soil is ploughed 8,000,000 hm
2At alkaline land improvement and in utilizing, the soil salt damage is a restriction plant survival whether crucial dominant factor, therefore, plant species to the alkaline land is selected, primary is to select plant salt tolerance capacity limit value must be higher than this alkaline land the highest soil salt concentration whole year, may ensure that just nursery stock spends the salt stress phase smoothly, guarantee to survive.Therefore, the agricultural scholar looks forward to the salt tolerant ultimate value of seeking each kind of plant of mensuration both at home and abroad, with this required plant salt tolerance ability is carried out quantitative evaluation and ordering, this just provides quantitative foundation for the selection of alkaline land plant species type, guarantee that for planting trees and grass higher survival rate provides a kind of science and technology of quantification, greatly improves the economic benefit and the ecological benefits of planting trees and grass in the alkaline land.Therefore, when this inventive features is that plant is subjected to drought stress, damaged membrane, as long as root system still has vitality, after soil was poured water, the cell membrane of damage just can be repaired.This cell membrane damage degree changes and changes along with the salt stress degree, and both have correlationship, but when plant run into above it the salinity of the salt tolerant limit and during root system death, the two correlationship has not just existed.Turning to the initial tr pt of irrelevant relation from this correlationship just must be the salt tolerant ultimate value of plant, puts corresponding soil water potential is restrained oneself arid ability as the quantitative evaluation plant foundation with this.
According to this principle and method, realize that the determination step of plant anti-salt ability quantitative evaluation is as follows:
1. according to claim 1.Select the plant individual of the identical and representative container field planting of specification for use, utilize the difference of the fate of pouring water to make each container formation soil salt coerce gradient, measure the soil salt concentration and the corresponding plant cell membrane degree of injury of each container.
2. working as soil salt coerces to a certain degree, measure the soil salt concentration of each container and the cell membrane damage degree of corresponding plants, fully pour water afterwards, measure the variation tendency of each plant cell membrane repair ability after 48 hours, thereby find out the critical point that the reparation of plant cell membrane is the slowest and can not repair.The pairing native soil flow of water of this critical point is the ultimate value of plant salt tolerance, is worth index as the quantitative evaluation of plant anti-salt ability with this.
The application of this invention can solve the plant salt tolerance ability can only carry out salt tolerant with sense in the past, than salt tolerant, the problem brought of the fuzzy non-quantitation evaluation of salt tolerant not, avoid effectively that blindly plantation, subjectivity are introduced a fine variety the very big loss that causes manpower and materials at saline-alkali soil on the ground.In addition, to the early stage quantitative screening and the evaluation of salt-resistance breeding of new variety, excellent strain; In changeing the salt resistant gene breeding, the quantitative evaluation of salt resistant gene functional expression level had crucial practical value.This technical measurement reliable results, with low cost, easy to operate, application potential is big, ecological and economic benefit height.
Claims (5)
1. the present invention relates to the quantitative evaluation technology of a plant salt tolerance ability, when it is characterized in that plant is subjected to salt stress, damaged membrane, then membrane permeability increases, this cell membrane damage degree changes and changes along with the salt stress degree, both have correlationship, but when plant run into above it the salt stress of the salt tolerant limit and during root system death, the two correlationship has not just existed.Turning to the initial tr pt of irrelevant relation from this correlationship just must be the salt tolerant ultimate value of plant, puts the foundation of corresponding soil water potential as quantitative evaluation plant salt tolerance ability with this.
2. the correlationship of utilizing plant to be subjected to salt stress degree and cell membrane damage degree according to claim 1. is measured the method for the plant salt tolerance limit.
3. the mensuration of coercing killing point according to claim 1. plant salt is by after the plant rehydration that is subjected to the gradient salt stress, has according to plant cell membrane that the pairing soil water potential of separation that repair ability and cell membrane lose repair ability realizes.
4. can represent according to claim 1. plant cell membrane degree of injury that the intensity of variation of cell leakage is selected the plant vigor analyzer (patent No.: ZL93247854.9) quantitative measurement for use with cell leakage.Coerce the method that killing point is estimated the drought-resistance ability of plant by measuring plant salt.
5. according to claim 1., this technology is applicable to arbor, shrub and draft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310113318 CN1616965A (en) | 2003-11-10 | 2003-11-10 | Quantitative evaluation technology for plant salt telerance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310113318 CN1616965A (en) | 2003-11-10 | 2003-11-10 | Quantitative evaluation technology for plant salt telerance |
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| CN1616965A true CN1616965A (en) | 2005-05-18 |
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| CN 200310113318 Pending CN1616965A (en) | 2003-11-10 | 2003-11-10 | Quantitative evaluation technology for plant salt telerance |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100495390C (en) * | 2007-03-09 | 2009-06-03 | 山东省农业科学院土壤肥料研究所 | Computer estimation method for salt tolerance of non-halophyte herbaceous plant |
| CN101320029B (en) * | 2008-07-17 | 2011-10-26 | 江汉大学 | Technical appraisement method for cowpea gene-type salt-resistant ability |
| CN101315358B (en) * | 2008-07-17 | 2012-08-29 | 江汉大学 | Technical appraisement method for genetype moisture-proof ability of cowpea |
| CN104521712A (en) * | 2014-12-31 | 2015-04-22 | 天津泰达盐碱地绿化研究中心有限公司 | Introduction and screening method for ornamental grass in coastal salt and alkali area |
| CN109187863A (en) * | 2018-09-03 | 2019-01-11 | 河北省农林科学院滨海农业研究所 | A kind of greening seedling Seedling Salt-tolerance identification method |
| CN111011208A (en) * | 2019-12-06 | 2020-04-17 | 江苏沿海地区农业科学研究所 | Method for screening salt-tolerant cotton varieties |
| CN111280050A (en) * | 2020-02-12 | 2020-06-16 | 甘肃省农业科学院经济作物与啤酒原料研究所（甘肃省农业科学院中药材研究所） | Saline-alkali tolerant barley breeding method |
-
2003
- 2003-11-10 CN CN 200310113318 patent/CN1616965A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100495390C (en) * | 2007-03-09 | 2009-06-03 | 山东省农业科学院土壤肥料研究所 | Computer estimation method for salt tolerance of non-halophyte herbaceous plant |
| CN101320029B (en) * | 2008-07-17 | 2011-10-26 | 江汉大学 | Technical appraisement method for cowpea gene-type salt-resistant ability |
| CN101315358B (en) * | 2008-07-17 | 2012-08-29 | 江汉大学 | Technical appraisement method for genetype moisture-proof ability of cowpea |
| CN104521712A (en) * | 2014-12-31 | 2015-04-22 | 天津泰达盐碱地绿化研究中心有限公司 | Introduction and screening method for ornamental grass in coastal salt and alkali area |
| CN104521712B (en) * | 2014-12-31 | 2017-05-24 | 天津泰达盐碱地绿化研究中心有限公司 | Introduction and screening method for ornamental grass in coastal salt and alkali area |
| CN109187863A (en) * | 2018-09-03 | 2019-01-11 | 河北省农林科学院滨海农业研究所 | A kind of greening seedling Seedling Salt-tolerance identification method |
| CN111011208A (en) * | 2019-12-06 | 2020-04-17 | 江苏沿海地区农业科学研究所 | Method for screening salt-tolerant cotton varieties |
| CN111280050A (en) * | 2020-02-12 | 2020-06-16 | 甘肃省农业科学院经济作物与啤酒原料研究所（甘肃省农业科学院中药材研究所） | Saline-alkali tolerant barley breeding method |
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