摘要
试验以反复干旱为基础，模拟土壤干旱条件研究了８种燕麦幼苗在水分胁迫下叶片相对含水量（ＲＷＣ）、气孔孔径、游离脯氨酸含量、乙烯含量、叶绿素含量及细胞膜的透性。运用模糊数学对各个指标进行综合评定和数量化分析，探讨了生理生化方法应用于燕麦品种抗旱性鉴定的可行性。根据水分胁迫时８种燕麦生理生化变化的综合分析评价，我们可以把这８种燕麦品种苗期抗旱性可归为三类，即强抗旱性品种为：加拿大燕麦和永久５２；中抗旱性品种为：永久４４４燕麦和永久４８９燕麦；弱抗旱性品种为：永久４７９燕麦、Ｐ６７燕麦。
To simulate arid condition, the relative water contents of leaf blades, width of stomata, contents of free proline, ethylene, chlorophyll and permeability of membrane about 8 oats seedlings were studied under water stress. Using the methods of obscure mathematics to evaluate comprehensively every index and quantitative analysis and approaching the feasibility that physiological and biochemical methods were applied to diagnose the drought-resistance of oat varieties. Based on the above, they were classified three categories: oat Canada and Yongjiu 52, the highest; Yongjiu 444 and Yongjiu 489, the media; Yongjiu 479, P67, 080 and P20, the lowest.
出处
《草业科学》
CAS
CSCD
北大核心
1996年第6期30-34,共5页
Pratacultural Science
关键词
燕麦
水分胁迫
综合评价
抗旱性
Oats, water stress, obscure polymeric classification, comprehensive evaluation
