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中国农学通报

中国农学通报 ›› 2010, Vol. 26 ›› Issue (3): 152-156.

所属专题： 玉米

• 农学 农业基础科学 • 上一篇    下一篇

黄淮海地区夏玉米换代品种洛玉4号适宜种植密度研究

王向阳,雷晓兵,卫勇强,梁晓伟,李林,陈润玲   

  • 收稿日期:2009-09-03 修回日期:2009-09-29 出版日期:2010-02-05 发布日期:2010-02-05
  • 基金资助:

    农业部科技成果转化基金项目

Study on suitable planting density of summer corn update variety Luoyu 4 hao in Huanghuai area

  • Received:2009-09-03 Revised:2009-09-29 Online:2010-02-05 Published:2010-02-05

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摘要：

摘要：【研究目的】为了明确洛玉4号玉米品种的合理种植密度，使优良品种与地区生态环境相适应, 从而发挥群体优势而夺取高产。【方法】采用单因素随机区组设计，研究不同密度对玉米产量及农艺性状的影响。【结果与讨论】洛玉4号在密植条件下，抗倒性强，结实性好，在75000株/hm2密度范围内基本无空棵、倒伏和秃尖现象。洛玉4号在中等偏上水肥条件下的适宜密度为60000-75000株/hm2，为耐密型玉米杂交种，增加种植密度，以保证足够的收获穗数是实现高产的关键。

关键词: 转基因, 转基因, 甘蓝型油菜, 近缘种, 基因漂移

Abstract:

Abstract: 【OBJECTIVE】 In order to study on the the reasonable density of Luoyu 4 hao corn, thus causes the improved seed and the area ecological environment adapts, the display community superiority captures the high production.【METHOD】Use the method of Single factor randomized block experiment to study the Influence of density to yield and agronomic characters. 【RESULTS AND CONCLUSION】Under high density planter condition，Luoyu 4 hao shows Lodging resistance, and good seed. In 75000 /hm2 density range,it has non-empty trees, lodging and bare sharp phenomenon. under the medium sludge fertilizer condition,Luoyu 4 hao’s suitable density is 60000-75000 /hm2, is the dense corn hybrid, so increase the planting density, in order to ensure sufficient harvesting ears is the key to achieve high yield.