干旱条件下冷型小麦的生理特性分析  

Analysis of lower canopy temperature and physiological characteristics of cold type wheat under drought

作　　者：冯佰利[1] 赵琳[2] 高小丽[1] 高金峰[1] 张嵩午[1] 李生秀[2] 

机构地区：[1]西北农林科技大学农学院,陕西杨凌712100 [2]西北农林科技大学资源环境学院,陕西杨凌712100

出　　处：《西北农林科技大学学报（自然科学版）》2005年第3期38-42,共5页Journal of Northwest A&F University(Natural Science Edition)

基　　金：国家自然科学基金重大项目(30230230);国家自然科学基金项目(39870477)

摘　　要：　选择不同温型的小麦品种,通过测定群体冠层温度、叶片功能持续期以及丙二醛含量等参数,研究了干旱条件下冷型小麦的生理特性。结果表明,在籽粒灌浆期间,冷型小麦群体冠层温度持续偏低,其叶片功能期、蒸腾速率等性状明显优于暖型小麦品种,在籽粒灌浆后期表现尤为明显。冷型小麦对干旱的特殊适应性将为旱地小麦品系(种)的选择和高产栽培提供新的思路。Cold and Warm wheat cultivars were used to investigate their lower canopy temperature and some physiological characteristics by measuring their corresponding canopy temperature,duration of function leaves and MDA content.The results showed that canopy temperature was continuously lower in cold wheat cultivars than in warm ones,especially during kernel-filling period.Many of the physiological characteristics such as the functional period of leaves and MDA content in the former were superior to those in the latter.So the use and selection of the cold type wheats should be stressed in the wheat breeding and culture,for it is useful to improve crop yield and quality in dry farmland conditions.

关 键 词：冷型小麦 生理特性 冠层温度 干旱地区 

分 类 号：S512.101[农业科学—作物学]