PEG-6000模拟干旱胁迫下秋地黄瓜萌芽期抗旱性评价  

Evaluation of The Drought Resistance of Autumn Cucumber in Germination Stage Under PEG-6000 Simulated Drought Stress

作　　者：张占军[1] 

机构地区：[1]陇东学院农林科技学院,甘肃庆阳745000

出　　处：《甘肃农业科技》2014年第5期16-18,共3页Gansu Agricultural Science and Technology

基　　金：甘肃省科技厅星火计划项目(1205NCXM262);甘肃省教育厅研究生导师项目(1110-02)部分内容

摘　　要：应用聚乙二醇(PEG-6000)通过渗透胁迫人工模拟干旱条件,对甘肃陇东地区栽培的5个秋地黄瓜品种进行了萌芽期抗旱性综合评价,结果表明:在-0.50 MPa PEG-6000溶液模拟干旱环境条件下,根据秋地黄瓜种子发芽率、相对发芽率、种子萌发抗旱指数、种子活力抗旱指数等种子萌发指标的表现,各供试品种萌芽期的抗旱性由大到小依次为新唐山秋黄瓜、板桥白黄瓜、合水老来少黄瓜、四季秋黄瓜、唐山秋黄瓜。The drought resistance of 5 kinds of autumn cucumbers planting were studied and comprehensive evaluated in the east area of Gansu province in germination stage under PEG-6000 simulated drought stress . The results showed that drought resistance of autumn cucumbers in the bud in descending order was according to the features of seed germination indexes which seed germination rate,the relative germination rate drought-resistance index of seed germination,drought resistance index of seed vigoretc under simulated drought strees of -0.50 MPa, PEG-6000 . Newtangshan autumn cucumber, Banqiao white cucumber,Heshuilaolaishao white cucumber,Siji autumn cucumber,Tangshan autumn cucumber .

关 键 词：秋地黄瓜 萌芽期 干旱胁迫 抗旱性 评价 

分 类 号：S642.2[农业科学—蔬菜学]