摘要
研究了5种南荻的抗寒能力,分别用5、0、-5、-10、-15、-20、-25℃等不同的温度处理,模拟低温胁迫,测定丙二醛(MDA)含量、超氧化物歧化酶(SOD)活性、过氧化物酶(POD)活性、脯氨酸(Pro)含量4个生理生化指标。结果表明:随胁迫温度的降低,各项生理生化指标总体上先升高,这是植株抵抗低温胁迫的阶段,随后呈下降的趋势,这是植株受到严重冻害损伤的结果。
The cold-resistance of five varieties of Triarrhena lutarioriparia L. Liu were researched, in which using different temperatures (5, 0,-5,-10,-15,-20 and-25℃) to simulate low-temperature stress, and four physiological and biochemical indexes (MDA content, SOD content, POD content and Pro content) were determined. The results showed that with decreasing stress temperature, each physiological and biochemical index generally showed a trend of increase in resistant stage and then decrease in freezing injury stage.
出处
《湖南农业科学》
2013年第11期13-15,共3页
Hunan Agricultural Sciences
基金
湖南省自然科学基金项目(12jj2019)
关键词
南荻
抗寒能力
生理生化指标
低温胁迫
Triarrhena lutarioriparia L.Liu
cold resistance
physiological and biochemical indexes
low-temperature stress
