亚麻全生育期耐旱性评价及耐旱种质筛选

谢芳; 郭栋良; 葛优; 张泽阳; 江海霞; 朱磊磊; 黎远东; 杨阳; 谢丽琼

doi:10.13568/j.cnki.651094.651316.2022.09.07.0001

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亚麻全生育期耐旱性评价及耐旱种质筛选

生命科学与技术 | 更新时间：2026-01-21

- 亚麻全生育期耐旱性评价及耐旱种质筛选
- 亚麻全生育期耐旱性评价及耐旱种质筛选
- 新疆大学学报（自然科学版中英文） 2023年40卷第4期页码：467-475
- 作者机构：
  
  新疆大学生命科学与技术学院
- 作者简介：
- 基金信息：
  
  国家自然科学基金“亚麻白粉病抗病机制的初步分析与候选抗病基因挖掘利用”（32060426）;新疆维吾尔自治区资源平台项目“新疆栽培亚麻、野生亚麻种质资源实物与信息共享平台建设项目”（PT1808）
- DOI：10.13568/j.cnki.651094.651316.2022.09.07.0001
  中图分类号： S563.2
- 纸质出版：2023
- 稿件说明：
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[1]谢芳,郭栋良,葛优,等.亚麻全生育期耐旱性评价及耐旱种质筛选[J].新疆大学学报(自然科学版)(中英文),2023,40(04):467-475+485.
[1]谢芳,郭栋良,葛优,等.亚麻全生育期耐旱性评价及耐旱种质筛选[J].新疆大学学报(自然科学版)(中英文),2023,40(04):467-475+485. DOI： 10.13568/j.cnki.651094.651316.2022.09.07.0001.

DOI：10.13568/j.cnki.651094.651316.2022.09.07.0001.

摘要

对来自40多个国家和地区的243份亚麻核心种质资源进行全生育期耐旱性综合评价，以期为亚麻耐旱育种的亲本提供丰富的耐旱材料．设置干旱胁迫和正常灌溉两种处理，计算各种质的相对株高（R-PH）、相对茎粗（R-SD）、相对地上重（R-GW）和相对产量（R-Y），通过综合抗旱系数（CDC）、抗旱指数（DI）、产量抗旱系数（YDC）进行耐旱性直接鉴定，根据抗旱隶属函数D值进行耐旱性综合评价．结果表明：（1）地上重和产量的耐旱权重值较高，株高和茎粗的耐旱权重值较小．（2）根据抗旱隶属函数D值可将243份亚麻种质分为5个耐旱等级：高耐6份、耐旱28份、中耐156份、敏感45份、高敏8份．（3）VNIIL-725、T. 126、DE METCHA 1-3-3 VILM在所有指标中表现最优、耐旱性最强，G 2063-5-10耐旱性最弱；共筛选出3份高耐和1份高敏亚麻种质．（4）油用亚麻亚群比纤用亚麻亚群更耐旱．

Abstract

243 flax germplasms

which are from more than 40 countries and regions

were synthetically evaluated for drought tolerance in the whole growing period

in order to provide abundant drought tolerant materials for the parents of flax drought tolerant breeding. Calculating flax-related traits-relative plant height(R-PH)

relative stem diameter(R-SD)

relative above-ground weight(R-GW) and relative yield(R-Y)

we analyzed the drought tolerance difference in flax under full irrigation conditions and drought stress

respectively. Synthetic drought tolerance coefficient(CDC)

drought tolerance index(DI)

and yield drought tolerance coefficient(YDC) were used for direct identification of drought resistance and drought tolerance affiliation function D value(D) was used for comprehensive evaluation. The results showed that:(1) The weight of above-ground weight and yield were relatively higher than the others when evaluating drought resistance

plant height and stem diameter were smaller.(2) By D values

243 flax core germplasm were divided into five drought tolerance classes: 6 highly tolerant

28drought tolerant

156 moderately tolerant

45 sensitive

and 8 highly sensitive.(3) VNIIL-725

T. 126 and DE METCHA 1-3-3 VILM had the best performance and the strongest drought resistance among all indicators

while G 2063-5-10 was the weakest; 3 high-tolerance and 1 high sensitivity flax germplasm were selected.(4) Flax subgroups for oil are more drought tolerant than flax for fiber.

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references

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