Effects of Cultivation Methods on Yield Formation and Photosynthetic Characteristics of Zhuliangyou 4024 and H You 159 as Doublecropping Rice  

不同栽培方式对双季稻株两优4024与H优159产量形成及光合特性的影响（英文）

作　　者：刘利成[1,2] 敬礼恒[1] 李蓉 何川[1] 洪珊[1] 邓化冰[1] 

机构地区：[1]湖南农业大学水稻研究所,湖南长沙410128 [2]湖南省水稻研究所,湖南长沙410125 [3]耒阳市农业局,湖南衡阳421800

出　　处：《Agricultural Science & Technology》2015年第7期1381-1384,共4页农业科学与技术（英文版）

基　　金：Supported by National Agricultural Science Technology Achievement Transformation Fund(2010GB2D200314);Natural Science Foundation of China(31101134)~~

摘　　要：To explore the high-yield cultivation methods of Zhuliangyou 4024 and H You 159 when planted as double-cropping rice, the effects of two cultivation meth- ods, i.e., seedling broadcasting and transplanting, were studied on SPAD value, photosynthetic rate, grain yield and yield components. The results showed that the seedling broadcasting cultivation was conducive to Zhuliangyou 4024 and H You 159 to obtain higher yield. The higher chlorophyll content and photosynthetic rate and their slower decrease of flag leaf after full heading of the seedling broadcasting cultivation were thought to be the physiological basis of high yield.为探明杂交早稻组合株两优4024和晚稻组合H优159作双季稻种植的适宜栽培方式,研究了抛秧和移栽2种栽培方式对其剑叶SPAD值、剑叶光合速率、产量及产量构成因素的影响。结果表明,抛栽方式有利于株两优4024和H优159增产;抛栽水稻齐穗后剑叶具有较高的叶绿素含量和光合速率,且下降较缓慢是其高产的生理基础。

关 键 词：Double-cropping rice Cultivation method YIELD Photosynthetic charac- teristic 

分 类 号：S511.42[农业科学—作物学]