摘要
７０年代以来，辽宁省通过审定的水稻品种逐步增多，累计６５个。新品种的产量呈上升趋势。杂交粳稻辽优１号和株型理想的直立穗品种辽粳２４４的培育成功，使区域试验亩产量分别突破５００和６００ｋｇ，其它品种的产量水平也明显提高。促使水稻新品种产量增长的关键因素是增加了杂交粳稻和理想株型品种的每穗成粒数。
Since 1974,65 rice varieties have been passed the examination in Liaoning Province.The number and yield of new rice varieties were all increased Liaoyou 1,a hybrid rice (japonica),and Liaojing 244,an idea type rice variety,have been released to make the yields per mu to reach 500kg and 600kg respectively.The yields of other varieties in regional experiments were increased too.The key factor to increase the yield was ripened grains per panicle of new hybrid rice and varieties with idea type.
出处
《沈阳农业大学学报》
CAS
CSCD
1998年第2期113-116,共4页
Journal of Shenyang Agricultural University
关键词
水稻
品种
审定
辽宁省
rice variety
examination
Liaoning Province
