摘要
通过不同年份生育期有效积温和日照对杂交粳稻农艺性状的影响分析得知，有效积温与各农艺性状的相关性大小依次为：空秕率（－０．６９８４）＞产量（０．６１３２）＞千粒重（－０．３０６５）＞有效穗数（０．１９８１）＞株高（０．１８７２）＞穗粒数（－０．１１９２）；日照对各性状相关性为千粒重（－０．５１４９）＞穗粒数（０．５１０７）＞株高（－０．３１１１）＞有效穗数（０．２７４７）＞空秕率（－０．０６５１）＞产量（０．００５６）；温光对产量的回归方程为Ｙ＝－１１２９．５０＋０．４４９８Ｘ１＋０．０１２１Ｘ２。
Through analysing the effect of accumulated temperature and light during the growing period on hybrid rice agronomic characteristics,it is learned that the magnitude of the effect of accumulated temperature on each agronomic characteristic was in such an order as empty seed percent>yield>1000 grain weight>effective ears>plant height>seeds of per ear,the magnitude of the effect of light on each characteristic was in the order of 1000 grain weight>seeds of per ear >plant height >effective ears>empty seed percent>yield.The regression equation of temperature and light to yield is =-112.950+0.4498X 1+0 0121X 2.
出处
《华北农学报》
CSCD
北大核心
1998年第1期61-63,共3页
Acta Agriculturae Boreali-Sinica
关键词
有效积温
日照
粳稻
农艺性状
杂交水稻
Hybrid Rice
Effective accumulated temperature
Light
Agronomic characteristics
