寒地超级稻龙稻5号籽粒灌浆速率分析与曲线拟合研究  

Grain-filling Analysis and Curve Fitting on the Super-rice Longdao 5 in Cold Region

作　　者：王立志[1,2] 王春艳[1] 李忠杰[1] 李锐[1] 徐晓波 孟英[1] 王连敏[1] 

机构地区：[1]黑龙江省农业科学院耕作栽培研究所,黑龙江哈尔滨150086 [2]南京农业大学,江苏南京210095 [3]内蒙古呼伦贝尔市莫力达瓦旗宝山镇农业综合服务中心,内蒙古呼伦贝尔162863

出　　处：《黑龙江农业科学》2013年第11期21-23,共3页Heilongjiang Agricultural Sciences

基　　金：科技部支撑计划资助项目(2012BAD20B0304)

摘　　要：为促进寒地超级稻育种并提高其栽培技术水平,以寒地超级稻龙稻5号和同区种植面积较大品种龙稻3号为试验试材,研究其籽粒灌浆的动态变化。结果表明:寒地超级稻龙稻5号籽粒灌浆过程中籽粒重量与抽穗后日数符合Logistic方程,推测其最大千粒重为23.94g,最大籽粒灌浆速率是在抽穗后13d左右出现。In order to promote the breeding of super-rice in cold and improve the level of cultivation techniques, taking super-rice Longdao 5 and control variety in the same ecotope Longdao 3 as materials, dynamic change of grain-filling was studied. The results showed that grain weight and the days after heading of Longdao 5 were fitted well with Lo gistic equation,its maximal thousand kernel grain weight was reckoned 23.94 g, the maximum grain-filling rate ap peared after heading for 13 d,and the plant area was large.

关 键 词：超级稻 龙稻5号 籽粒灌浆 LOGISTIC模型 

分 类 号：S511[农业科学—作物学]