| 不同密度下短季棉成铃时空分布及产量比较研究 |
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| 引用本文： | 房卫平,谢德意,李文,马宗斌,李伶俐. 不同密度下短季棉成铃时空分布及产量比较研究[J]. 河南农业科学, 2011, 40(1): 58-61 |
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| 作者姓名： | 房卫平 谢德意 李文 马宗斌 李伶俐 |
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| 作者单位： | 1. 河南省农业科学院,经济作物研究所,河南,郑州,450002
2. 河南农业大学农学院,河南,郑州,450002 |
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| 基金项目： | 国家公益性行业科研专项 |
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| 摘 要： | 以短季棉中棉50号为材料,设2.25万、4.50万、6.75万、9.00万、11.25万、13.50万株/hm2 6个密度处理,在麦后移栽条件下,研究了不同密度对短季棉成铃时空分布和产量的影响.结果表明,不同种植密度下,棉花均以第6-10果枝(占38.45%以上)和第1果节(占43.22%以上)为成铃的主体.种植密度对...
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| 关 键 词： | 短季棉 密度 成铃 时空分布 产量 |
Studies on Bolls Spatial and Temporal Distribution and Yield of Short-season Cotton under Different Planting Densities |
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| FANG Wei-ping,XIE De-yi,LI Wen,MA Zong-bin,LI Ling-li. Studies on Bolls Spatial and Temporal Distribution and Yield of Short-season Cotton under Different Planting Densities[J]. Journal of Henan Agricultural Sciences, 2011, 40(1): 58-61 |
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| Authors: | FANG Wei-ping XIE De-yi LI Wen MA Zong-bin LI Ling-li |
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| Affiliation: | 1.Economical Crop Research Institute,Henan Academy of Agricultural Sciences,Zhengzhou 450002,China;2.Agronomy College of Henan Agricultural University,Zhengzhou 450002,China) |
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| Abstract: | Effects on bolls spatial and temporal distribution and yield were studied under intransplanted cotton following wheat harvest with different planting densities using short-season cotton variety CCR150.The results showed that the 6th-10th fruiting branches and the 1st fruiting nodes were the key positions for boll setting of cotton(more than 38.45%,43.22%,respectively).Planting densities had small effect on bolls spatial distribution of different fruiting branches but had greater effect on different fruiting nodes.Number of bolls setting on 1st fruiting nodes increased with planting densities while the trend was contrary on 3rd and above 4th fruiting nodes.As to the temporal distribution of boll setting,summer bolls and early autumn bolls increased with planting densities.The optimal planting density of short-season cotton variety CCR150 was 67500-90000 plants/ha under this experiment conditions which was slight lower than conventional cultivation. |
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| Keywords: | Short-season cotton Planting density Boll setting Spatial and temporal distribution Yield |
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