不同生态条件对高淀粉玉米品种郑单18生长发育及产量的影响  

The Influence of Different Ecological Condition on Growth and Yield of High Starch Corn Variety Zhengdan 18

作　　者：王振华[1] 张新[1] 刘文成[2] 田继锋 张前进[1] 

机构地区：[1]河南农科院粮食作物研究所,郑州450002 [2]安阳大学,安阳455000 [3]许昌农技站

出　　处：《中国农学通报》2004年第1期98-99,137,共3页Chinese Agricultural Science Bulletin

基　　金：国家农业科技成果转化资金项目。

摘　　要：通过不同生态条件对郑单18号生长发育及产量的影响研究,在河南夏播条件下,随着播种期的推迟,郑单18号的产量逐渐下降,穗行数、行粒数、千粒重逐渐降低,叶面积系数最大值变小,生育进程加快,生育期缩短;适宜生态条件为:全生育期积温2674.9～2860.8℃,至2496.0℃产量严重下降,全生育期日平均温度24.8～25.8℃,至24.5℃产量严重下降,对光照条件要求不严格。The influence of different ecological condition on growth and yield of Zhengdan 18 was studied. The yield, ear row number and row grain number dropped, the maximum leaf area index declined, the growing process quickened, the growing time became short, along with the postponement of summer sowing. The ecological adaptability for high yield of Zhengdan 18 was that whole growing accumulated temperature was 2674.9-2860.6 and whole growing daily mean temperature was 24 .8～25.8.

关 键 词：生态条件 高淀粉玉米 郑单18 生长发育 产量 

分 类 号：S513[农业科学—作物学]