孕穗期不同低温对水稻空壳率的影响  

Effect of Different Low Temperature on the Percentage of Rice Unfilled Grains in Booting Stage

作　　者：曾宪国[1] 项洪涛[2] 王立志[2] 王连敏[2] 

机构地区：[1]黑龙江省泰来县二龙涛农场,黑龙江泰来162400 [2]黑龙江省农业科学院耕作栽培研究所,黑龙江哈尔滨150086

出　　处：《黑龙江农业科学》2014年第6期19-22,共4页Heilongjiang Agricultural Sciences

基　　金："十二五"国家科技支撑计划资助项目(2012BAD21B0304);黑龙江省农业科技创新工程资助项目(2012ZD032)

摘　　要：为了降低低温对水稻生产造成的损失,以水稻品种龙稻5号和东农428为材料,采用盆栽种植方式于孕穗期进行低温处理,研究孕穗期低温对水稻空壳率的影响。结果表明:随着低温强度降低及时间延长,水稻空壳率显著增加。水稻品种龙稻5号较东农428更具耐冷性。In order to reduce the losses of rice production caused by low temperature,the percentage of rice unfilled grains of two cultivars in duding Longdao 5 and Dongnong 428 under pot-culture in booting stage was compared and the effect of low temparature in booting stage on percentage of unfilled grains was studied. The results showed that with the strength decreasing and prolonged time of low temperature, rate of rice unfilled grains increased significantly. Longdao 5 had more cold resistance than Dongnong 428.

关 键 词：水稻 孕穗期 低温 空壳率 

分 类 号：S511[农业科学—作物学]