摘要
以6份小麦种子为材料,采用不同浓度PEG-6000溶液模拟干旱胁迫,通过种子萌发过程中相对发芽率、相对发芽指数、胚根长、胚芽长、相对抗旱指数、相对活力指数等指标对6份玉米材料种子抗旱能力进行测试。结果表明,小麦种子萌发期的相对发芽率、相对发芽指数、相对活力指数与干旱胁迫呈负相关;6份小麦种子材料萌发期的抗旱性表现为:荣50580>拉2577>克春1号>克春4号>垦九10号>龙麦33;小麦幼苗根长、幼苗芽长、抗旱指数在不同浓度PEG-6000胁迫后各指标均发生显著变化,6份小麦种子材料苗期的抗旱性表现为:垦九10号>克春4号>克春1号>龙麦33>垦九10号>荣50580>拉2577。
Using 6 wheat seeds as materials,and PEG-6000 solutions of different concentrations to simulate drought stress,passed during the process of seed germination,relative germination rate,relative germination index,radicle length,embryo length,relative drought resistance index,relative vigor index and other indicators were tested for drought resistance ability of 6 maize material seeds.The results showed that the relative germination rate,relative germination index,and relative vigor index of wheat seed during germination period were negatively correlated with drought stress.The drought resistance performance of 6 wheat seed materials during germination period was Rong 50580>La 2577>Kechun 1>Gram Spring 4>Kenjiu 10>Longmai 33.Wheat seedling root length,seedling sprout length,and drought resistance index all changed significantly after different concentrations of PEG-6000 stress.Drought resistance performance of 6 wheat seed materials at seedling stage for Kenjiu No.10>Kechun No.4>Kechun No.1>Longmai 33>Kenjiu No.10>Rong 50580>Pull 2577.
作者
张培青
张连云
李洪波
乌仁其其格
ZHANG Peiqing;ZHANG Lianyun;LI Hongbo;WU Renqiqige(College of Agriculture and Forestry,Hulunbuir University,Hailaer Inner Mongolia 021008,China;College of Grassland,Resources and Environment,Inner Mongolia Agricultural University,Huhhot,010019,China;Hulunbuir Agricultural Technology Extension Service Center,Hai laer Inner Mongolia 021008,China;Hulunbuir Seed Management Center,Hai laer Inner Mongolia 021008,China)
出处
《耕作与栽培》
2021年第2期5-8,26,共5页
Tillage and Cultivation
基金
基于生产利用的退化草地生态修复模式研究(2020 ZKYB 13)
农业部公益性行业项目(201303060)
内蒙古自治区自然科学基金项目(2017 MS 0328)
青年科学基金项目(31700410)
地区科学基金项目(31560657)。
