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当前位置: 首页 > 文章 > 杂交稻新组合天优3301光温生态特性分析 福建农业学报 2010,25 (6) 31-36
Position: Home > Articles > Photo-thermal characteristics of hybrid-rice,Tianyou 3301 Fujian Journal of Agricultural Sciences 2010,25 (6) 31-36

杂交稻新组合天优3301光温生态特性分析

作  者：
程雪华;姜照伟;李小萍;陈建民;尤志明;任周悌
单  位：
福建闽丰科技种业有限责任公司;福建省农业科学院水稻研究所;福建省农业科学院生物技术研究所
关键词：
杂交水稻;天优3301;光温特性
摘  要：
采用温差、日长差的出穗日数对比和高温短日下出穗日数指标法,鉴定水稻光温特性。结果表明,天优3301感温性弱(1～2级)、感光性中偏低(4级)、基本营养生育期长(9级);天优3301在福建安全生长季种植,光敏期日长大多超过促进出穗临界日长,气温成为制约生育期的主要因素,当平均气温每升高1℃,营养生长期缩短4.4d,全生长期缩短8.4d;本田营养生长期日数和结实期日照是影响稻谷产量的重要生态因素。
译  名：
Photo-thermal characteristics of hybrid-rice,Tianyou 3301
作  者：
CHEN Xue-hua1,2,JIANG Zhao-wei1,LI Xiao-ping1,CHEN Jian-min3,YOU Zhi-ming2,REN Zhou-di2(1.Rice Research Institute,Fujian Academy of Agricultural Sciences,Fuzhou,Fujian 350019,China; 2.Fujian Minfeng Scientific Seed Company Ltd.,Fuzhou,Fujian 350003,China; 3.Tea Research Institute,Fujian Academy of Agricultural Sciences,Fu'an,Fujian 355000,China)
关键词：
hybrid-rice;Tianyou 3301;photo-thermal characteristics
摘  要：
Photo-thermal characteristics of the hybrid rice,Tianyou 3301,were studied.By comparing the number of days from sowing to heading under different temperatures and day-lengths,as well as an indexing method of using the number of days from sowing to heading under high-temperature-short-day-length conditions,the ecological characteristics of the rice were obtained.The results indicated that Tianyou 3301 had a weak temperature susceptibility(Grade 1-2),medium photosensitivity(Grade 4) and long basic vegetative period(Grade 9).When Tianyou 3301 was planted in safe growth season in Fujian,its photosensitive day-length generally exceeded the critical day-length for promoting heading,and temperature was a determining factor for its growth.When the average environmental temperature increased by 1℃,the vegetative growth stage was shortened by 4.4 d,and the growing season reduced by 8.4 d.The days of field vegetative growth stage and sun exposure during its ripening period were important ecological factors affecting the yield of the rice.

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