饲料研究2025，Vol.48Issue(5)：91-96,6.DOI:10.13557/j.cnki.issn1002-2813.2025.05.016
干旱胁迫对油莎豆苗期生长指标的影响
Effect of drought stress on growth indicators of Cyperus esculentus L.during seedling stage
摘要
Abstract
The experiment used four Cyperus esculentus L.varieties(Heiyousha No.2,HB002,Xiaochangli,and NM001)as experimental materials.Polyethylene glycol 6000(PEG-6000)was employed to simulate drought stress to investigate the effects of different PEG-6000 concentrations(0%,10%,20%,and 30%)on the seedling growth of different varieties of Cyperus esculentus L.The indexes of plant height,leaf length,leaf width,stem diameter,fresh seedling weight,and tillering number per plant were measured at seedling stage,and the drought-resistant ability of Cyperus esculentus L.was analyzed.The results showed that PEG-6000 treatment reduced plant height and leaf length in Heiyousha No.2,NM001,and Xiaochangli to varying degrees.With the increase of PEG-6000 concentration,the leaf width and stem diameter of Heiyousha No.2 and Xiaochangli decreased first,then increased and then decreased.The stem diameter of Xiaochangli treated with PEG-6000 concentration was the lowest,and the stem diameter of Xiaochangli treated with CK and 10%PEG-6000 treatment was extremely lower than that of other varieties(P<0.01).The fresh weight of Xiaochangli treated with CK and 10%PEG-6000 was extremely lower than that of other varieties at the same concentration(P<0.01).The fresh weight of Xiaochangli treated with 20%and 30%PEG-6000 was significantly lower than that of other varieties(P<0.05).Under 30%PEG-6000 treatment,the fresh seedling weight of HB002 was significantly higher than that of Heiyousha No.2 and NM001(P<0.05),and extremely higher than that of Xiaochangli(P<0.01).Principal component analysis ranked the drought resistance of the four varieties as:HB002>NM001>Heiyousha No.2>Xiaochangli.The study shows that HB002 exhibits optimal growth under simulated drought conditions,making it a high-quality drought-tolerant germplasm for tiger nut.关键词
油莎豆/生长指标/抗旱性/干旱胁迫Key words
Cyperus esculentus L./growth indicators/drought resistance/drought stress分类
农业科技引用本文复制引用
孙蕊,王锐,高海娟,王若丁,李伟,张军,李莎莎,刘杰淋..干旱胁迫对油莎豆苗期生长指标的影响[J].饲料研究,2025,48(5):91-96,6.基金项目
黑龙江省省属科研院所科研业务费项目(项目编号:CZKYF2023-1-B002) （项目编号:CZKYF2023-1-B002）
齐齐哈尔市科学技术计划重点项目(项目编号:ZDTG-202202) （项目编号:ZDTG-202202）
黑龙江省农业科学院畜牧兽医分院自拟课题(项目编号:ZNKT-202220) （项目编号:ZNKT-202220）
