YANG Geng bin,LIU Xing yan,HE Chang an,et al.Effects of Plant Densities on Yield and Physiological Parameters of Maize Kedan 10[J].HEILONGJIANG AGRICULTURAL SCIENCES,2014,(04):30-33.
种植密度对克单10号产量和生理指标的影响
- Title:
- Effects of Plant Densities on Yield and Physiological Parameters of Maize Kedan 10
- 文章编号:
- 1002-2767（2014）04-0030-04
- Keywords:
- planting density; Kedan 10; yield; physiological parameters
- 分类号:
- S513
- 文献标志码:
- A
- 摘要:
- 为了进一步提高玉米产量，以克单10号为试材，在3种植密度下，研究了种植密度对克单10号的产量和生理指标的影响。结果表明：随着种植密度增加，玉米个体产量、主要产量相关性状、单株叶面积及单株地上部干物质积累量均呈现降低的趋势，群体地上部干物质积累量和群体叶面积指数则呈现升高趋势。其中种植密度为4.5万～6.0万株?hm-2时，产量最高。
- Abstract:
- In order to further improve maize yield,taking maize Kedan 10 as material,the effects of three densities on yield and physiological parameters of Kedan 10 were studied respectively.The results showed that the grain yield per plant，main yield characters，leaf area of plant and aboveground dry material accumulation per plant all decreased with the increasing of plant density and aboveground dry material accumulation and the leaf area index(LAI)of the population increased.The highest yield could be achieve to 450~600 thousand plants per hectare.
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备注/Memo
收稿日期：2013-12-02 第一作者简介：杨耿斌（1980-），男，黑龙江省克山县人，农学学士，助理研究员，从事玉米遗传育种研究。E-mail：kshmaize@163.com。