辽宁中熟、中晚熟与晚熟玉米品种的产量性能比较与分析  

Comparison and Analysis on Maize Yield Performance of Mid-maturing, Mid-late-maturing and Late-maturing Varieties in Liaoning Areas

作　　者：史振声[1] 张世煌[2] 李凤海[1] 王志斌[1] 张喜华[3] 张永亮[1] 朱敏[1] 

机构地区：[1]沈阳农业大学,沈阳110161 [2]中国农业科学院,北京100081 [3]辽宁省农业科学院,沈阳110161

出　　处：《玉米科学》2008年第6期6-10,共5页Journal of Maize Sciences

基　　金：“十一五”科技支撑计划项目“东北平原南部(辽宁)春玉米丰产高效技术集成研究与示范”(2006BAD02A12)

摘　　要：以15个辽宁省有代表性的中熟、中晚熟、晚熟玉米品种为试材,结合1999～2007年辽宁省玉米区域试验结果,对不同熟期品种的产量和生产性能进行比较研究。结果表明:中熟、中晚熟品种较晚熟品种有增产趋势,一些品种表现特别突出;中熟、中晚熟品种密植增产潜力大,密度适应范围广,稳产性更好;群体结构合理,经济系数高,源、流、库协调;在精量播种和机械化收获等方面,中熟、中晚熟品种有明显优势。The fifteen maize varieties which representative mid-maturing, mid-late-maturing and late-maturing in Liaoning province were carried, combined with the results of regional tests in Liaoning province during 1999 - 2007 and compared the yield and yield performance among different ripening period varieties, especially mid-matur- ing and mid-late-maturing maize varieties. The result indicated that the mid-maturing,mid-late-maturing varieties had yield-increasing tendency compared to late-maturing maize varieties. Some of the varieties had prominent performance. The mid-maturing, mid-late-maturing varieties had great close planting potential and broad density adapta tion scope and stable yield productivity. The mid-maturing, mid-late-maturing varieties had reasonable community structure and high harvest index and coordinated source-flow-sink relationship. They also had obvious superiority in accurate farming and mechanized harvest.

关 键 词：玉米 熟期 产量 辽宁省 

分 类 号：S513.024[农业科学—作物学]