[1]李伟,钟鹏,王锐,等.PEG6000模拟干旱胁迫下油莎豆种质资源苗期抗旱性评价[J].江苏农业科学,2026,54(1):74-81.
 Li Wei,et al.Evaluation of drought resistance of Cyperus esculentus germplasm resources at seedling stage under simulated drought stress with PEG6000[J].Jiangsu Agricultural Sciences,2026,54(1):74-81.
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PEG6000模拟干旱胁迫下油莎豆种质资源苗期抗旱性评价()

《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第54卷
期数:
2026年第1期
页码:
74-81
栏目:
遗传育种与种质资源
出版日期:
2026-01-05

文章信息/Info

Title:
Evaluation of drought resistance of Cyperus esculentus germplasm resources at seedling stage under simulated drought stress with PEG6000
作者:
李伟12钟鹏12王锐1高海娟12孙蕊12王若丁12张军1赵金波1王晓龙1王建丽3刘杰淋3
1.黑龙江省农业科学院畜牧兽医分院,黑龙江齐齐哈尔 161005; 2.黑龙江省草原与牧草育种重点实验室,黑龙江齐齐哈尔 161005; 3.黑龙江省农业科学院草业研究所,黑龙江哈尔滨 150086
Author(s):
Li Weiet al
关键词:
油莎豆苗期种质资源抗旱性评价
Keywords:
-
分类号:
S529.02
DOI:
-
文献标志码:
A
摘要:
为评价油莎豆种质资源苗期的抗旱性能,以10份油莎豆种质资源幼苗为研究对象,使用聚乙二醇(PEG-6000)水溶液模拟干旱胁迫,测定植株的过氧化氢酶活性、游离脯氨酸含量、可溶性糖含量、抗坏血酸过氧化物酶活性、相对叶绿素含量、鲜重根冠比、干重根冠比、株高8个指标,计算各指标的胁迫系数,并对苗期各指标的胁迫系数运用隶属函数等方法进行综合分析与评价。结果表明,10份油莎豆种质资源间的抗旱性能的遗传差异显著,变异系数为204%~27.38%,平均变异系数为11.70%,超过62.5%的变异系数大于10%,可溶性糖含量的变异系数最大(2738%)。各指标胁迫系数间存在显著或极显著相关性,过氧化氢酶活性、抗坏血酸过氧化物酶活性的相关系数最大(0.99)。8个指标可以转换成4个主要成分,累计贡献率为91.074%,能够代表油莎豆苗期抗旱性能的大部分信息。隶属函数分析结果表明,根据抗旱性度量值排序,抗旱性能较好的种质有HB002、黑油莎2号-1、HB002-1。
Abstract:
-

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备注/Memo

备注/Memo:
收稿日期:2024-12-29
基金项目:黑龙江省省属科研院所科研业务费项目(编号:CZKYF2023-1-B002);齐齐哈尔市科学技术计划重点项目(编号:ZDTG-202202);国家草品种区域试验项目(编号:16230087-1);齐齐哈尔市科技计划创新激励项目(编号:CNYGG-2023014);黑龙江省草品种驯化试验项目(编号:2023-1);齐齐哈尔市科技计划创新激励项目(编号CNYGG-2023006)。
作者简介:李伟(1984—),男,黑龙江肇东人,硕士,助理研究员,主要从事作物育种与栽培研究。E-mail:tm2510@163.com。
通信作者:钟鹏,硕士,研究员,主要从事作物育种与栽培研究。E-mail:zhongpengvip@163.com。
更新日期/Last Update: 2026-01-05