晚育晚插对超级稻生长发育的影响  

Late sown effect on growth

作　　者：赵飞[1] 陈温福[1] 王嘉宇[1] 赵姝丽[1] 周淑清[1] 

机构地区：[1]沈阳农业大学水稻研究所,辽宁沈阳110161

出　　处：《垦殖与稻作》2006年第1期19-25,共7页Reclaiming and Rice Cultivation

基　　金：国家"863"项目(2001AA241014);辽宁省自然科学基金项目(2001101011)

摘　　要：以沈农602、秋光和辽粳9为研究对象,主要通过对干物质与产量的关系,叶面积与产量的关系,穗部性状、以及不同播期对各生育时期的影响进行分析,来确定短生育期品种沈农602的晚播晚插高产机理。试验的结果表明:较高的产量要以较高的干物质积累为基础;干物质转运开始的时间对最终的转运率有一定影响,从而影响到最终产量;应注意后期的施肥,过多或过少都不利于高产的形成;不同播期对每穗粒数的影响较小;通过晚播,沈农602可以缩短生育期18～21d。Using three different varieties Shennong-602,Akihikari and Liaojing-9 as materials, studying on relationship of dry matter and yield ; LAI and yield, Panicle, the effect of sowing date on growing stage, in order to make clear the mechanism of high yield of Shennong-602. The result indicate：the dry matter is the basic of high yield;The beginning time of dry matter＇s transportation has much effect on the last transportation and yield;The fertilizer should be attentioned, not more and not less; the spikelets per panicle is not ＇affected very much by different sowing date; Delaying sowing date can save 18-21 days on Shennong-602.

关 键 词：水稻 分期播种 产量 

分 类 号：S511.042[农业科学—作物学]