野生鸭茅耐热性能评价  

The Heat-endure Performance Evaluation of Wild Orchardgrass

作　　者：曾兵[1] 张新全[1] 彭燕[1] 兰英[1] 

机构地区：[1]四川农业大学动物科技学院,四川雅安625014

出　　处：《安徽农业科学》2005年第12期2288-2290,2309,共4页Journal of Anhui Agricultural Sciences

基　　金：国家自然科学基金资助项目(30371022)

摘　　要：采用田间试验对16份鸭茅在自然条件下进行4个水平的热胁迫,观测其植株叶片相对电导率、叶绿素总含量、游离脯氨酸含量及体内超氧化物歧化酶(SOD)活性。研究结果表明:随着田间温度的升高,鸭茅叶片的相对电导率和游离脯氨酸含量均呈递增趋势;叶绿素总含量则呈递减趋势;超氧化物歧化酶活性则先呈递增后又递减的趋势。通过比较4项生理指标的变化规律以及指标间相关性的研究分析,可把16份鸭茅材料的耐热性分为3个级别,其中鸭茅材料02106、02104、02-1110、1032、02-109的耐热性非常好。The heat-endure performance ahout sixteen wild materials of Orehardgrass was analyzed in this paper. According to the research on Dactylis glomerata in relative conductance rate ,full contents of chlorophyll,the contents of dissociated proline and activity of SOD in-body ,the conclusion was that with the rise of temperature in fiehl,both the relative conduetance rate and dissociated proline presented were increasing; while full contents of chlorophyll presented deseending,and SOD presented firstly inereasing and then descending. By eontrast with the change, the sixteen shares of Orchardgrass can be classified into three levels.

关 键 词：鸭茅 耐热性 生理指标 

分 类 号：Q949.714.2[生物学—植物学]