欢迎访问《中国农学通报》，
中国农学通报

中国农学通报 ›› 2010, Vol. 26 ›› Issue (11): 127-131.

所属专题： 玉米； 农业生态

• 农学 农业基础科学 • 上一篇    下一篇

不同生态区玉米产量及农艺性状比较

戴明宏1,2,赵久然1,杨国航1,王荣焕1   

  • 收稿日期:2009-12-28 修回日期:2010-01-29 出版日期:2010-06-05 发布日期:2010-06-05

Comparison between different ecological regions on maize yield and agronomic characters

Dai Minghong1,2, Zhao Jiuran1, Yang Guohang1, Wang Ronghuan1   

  • Received:2009-12-28 Revised:2010-01-29 Online:2010-06-05 Published:2010-06-05

PDF (PC)

1289

摘要：

为进一步明晰东北华北春播区和黄淮海夏播区玉米生产的特征，从区域试验对照品种农大108和郑单958入手，对两个区域玉米产量及主要农艺性状进行比较和阐述。结果表明，东华北春玉米平均比黄淮海夏玉米增产1.4－2.0t/hm2，并且其产量优势在生育期、株高和穗位高、产量构成等方面都有着较好的体现。与黄淮海夏玉米相比，东华北春玉米生育期延长30天左右；株高和穗位高分别增加0.15m－0.23m和0.09m－0.15m；穗粒数和千粒重平均增加19.9%－25.4%和9.7％－16.5%。黄淮海区夏玉米粒重和穗粒数都有更大可提升的空间，而东华北春玉米增产主要靠增加穗粒数。

关键词: 肥料增效剂, 肥料增效剂, 马铃薯, 抗腐威

Abstract:

In order to further understand maize production characters in the Northern east - Northern China spring maize region and the Huang-huai-hai summer maize region. The two regions were compared on grain yield and some main agronomic characters of two cultivars (Nongda108 and Zhengdan958) based on National Maize Cultivar Regional Trial. Grain yield of spring maize in Northern east - Northern China was 1.4-2.0 t ha-1 higher than that of summer maize in Huang-huai-hai region. And this advantage could be displayed on growing period, plant height and ear height, and yield components as well. Comparing to summer maize, spring maize had ±30 d longer growing period, 0.15-0.23 m higher plant height, 0.09 -0.15 m higher ear height, 19.9-25.4% more kernel number per ear, and 9.7-16.5% higher thousand kernel weight. Yield increase of summer maize in Huang-huai-hai region could be promoted by increasing either kernel weight or kernel number per ear, while that of spring maize in Northern east – Northern China mainly depends on increasing kernel number per ear relatively.