不同播种期对弱感光杂交籼稻经济性状的影响  

Effects of Different Sowing Dates on Economic Characters of Weakly Photosensitive Hybrid Indica Rice

作　　者：俞祥群[1] 管耀祖[2] 丁长命[1] 陈文岳[1] 戈长水[1] 宋亮[1] 应武[1] 杨国花 

机构地区：[1]浙江省杭州市农业科学研究院农作物研究所,浙江杭州310024 [2]浙江省杭州市种子技术推广站,浙江杭州310020 [3]浙江省富阳市农业局,浙江富阳311400

出　　处：《江西农业学报》2004年第3期14-17,共4页Acta Agriculturae Jiangxi

基　　金：浙江省优质专用水稻新品种选育与产业化项目(011102471)。

摘　　要：以"协优9308"为对照,对2个弱感光杂交籼稻品种"昌优70"和"赣亚1号"在杭州的适宜播种期进行了试验。结果显示:不同播种期处理间产量、千粒重、株高、穗长4个性状差异达极显著水平(P<0.01);"昌优70"于4月20日播种和"赣亚1号"5月20日播种的产量最高,分别达8730.0 /hm2和8382.5 /hm2。The suitable sowing dates of two weakly photosensitive hybrid indica rice varieties—'Changyou 70'and 'Ganya 1' were tested by using 'Xieyou 9308' as check. The results showed that the differences in yield, 1000-grain weight, plant height and spike length of rice among different sowing date treatments were very significant (P<0.01); among 3 sowing date treatments, the yields of 'Changyou 70' sown on April 20th and 'Ganya 1' sown on May 20th were the highest, and reached 8730.0kg/hm^2 and 8382.5kg/hm^2 respectively.

关 键 词：播种期 杂交 籼稻 经济性状 品种 昌优70 赣亚1号 

分 类 号：S511.042[农业科学—作物学]