丙基双氢茉莉酮酸酯对不同基因型小麦生长及抗逆性的影响(英文)  

Effect of prohydrojasmon(PDJ) on Growth and Stress Resistence of Different Wheat Genetypes

作　　者：支金虎[1] 左胜鹏[2] 谷建杰 伍维模[1] 

机构地区：[1]塔里木大学植物科技学院,新疆阿拉尔843300 [2]中国科学院水土保持研究所黄土高原土壤侵蚀与旱地农业国家重点实验室,陕西杨陵712100

出　　处：《塔里木大学学报》2007年第2期9-12,共4页Journal of Tarim University

基　　金：农业部948重大国际合作资助项目(编号:2003-Z53);农业部农业产业结构调整重大研究专项资助项目(编号:04-07-03B)

摘　　要：在人工盆栽条件下,对4个不同基因型小麦进行播种前种子PDJ(10-5M)浸种处理和返青期不同水分处理(75%and45%),调查了拔节期不同小麦基因型生长反应,结果表明,土壤水分和PDJ对小麦生理影响因品系和测试指标不同而有显著差异。水分胁迫可显著降低四种小麦植株表现型性状和生物量,从而抑制植物生长,而进行PDJ处理后可以增强植物的抗逆性,减弱水分胁迫的抑制效应。正常水分情况下PDJ可以促进根系生长,而地上部生长对PDJ不敏感。In pot experiment growth adaptation of four winter wheat （ Triticum aestivum L. ） accessions has been investigated under the pretreatment of seed soaked by prohydrojasmon （PDJ, 10 -5M） before sowed while subjected to artificial control of soil water （75% and 45% ）at the beginning of the turning green stage. This paper presents the performance：The effect of soil water and PDJ on wheat growth physiology displayed marked difference according to tested wheat cuhivars and measured parameters. Water deficit decreased plant biomass significantly and changed phenotypic characteristics such as plant height and leaf area of all wheat materials, whereas, combining with PDJ pretreatment, the inhibitive effect by water stress would become weak. PDJ was found to stimulate wheat root growth and development so as to enhance pressure resistance.

关 键 词：影响 小麦基因型 丙基双氢茉莉酮酸酯 土壤水分胁迫 

分 类 号：S5[农业科学—作物学]