番茄耐热性鉴定方法研究  

Studies on methodlogy for identification of heat tolerance of tomato

作　　者：尹贤贵[1] 罗庆熙[2] 王文强[1] 张贇[1] 潘光辉[1] 杨琦凤[1] 尹诗麟[1] 

机构地区：[1]重庆市农业科学研究所,重庆400055 [2]西南农业大学园艺系,重庆400716

出　　处：《西南农业学报》2001年第2期62-65,共4页Southwest China Journal of Agricultural Sciences

基　　金：重庆市科委"九五"攻关项目

摘　　要：对 6个有代表性的番茄材料在高温胁迫下植物形态学和生理学的一些变化进行了研究 ,旨在探索快速、可靠、简便的番茄耐热性鉴定技术。调查重庆地区夏季田间种植的不同品种番茄 ,田间对自然高温的反应 ,发现统计座果率、果实商品性、产量、单果种子数等性状是鉴定番茄耐热性最可靠的方法。室内测定花粉活力、细胞膜热稳定性、SOD活性变化、游离脯氨酸含量变化 ,结合人工模拟高温条件鉴定热害指数 ,能较准确。Morphological and physiological reactions of six tomato varieties to stress of high temperature was studied. Results showed, planting tomato varieties in field during summer, recording reactions of different varieties to heat stress under the natural high temperature conditions, focusing on fruit set, fruit commercial characters, yield, quantitative of seeds in single fruit,were the most reliable identification methods. Testing pollen viability, cell membrane heat stability, SOD activity change and concentration of free proline, and combining with evaluating heat injury index in laboratory, could identificate varieties heat tolerant degree accurately and quickly.

关 键 词：番茄 耐热 鉴定 座果率 热害指数 产量 

分 类 号：S641.2[农业科学—蔬菜学]