| 张晓艳,郑殿峰,冯乃杰,李建英,杜吉到.密度对大豆群体碳氮代谢相关指标及产量、品质的影响[J].干旱地区农业研究,2011,29(3):128~132 |
| 密度对大豆群体碳氮代谢相关指标及产量、品质的影响 |
| Effect of plant density on soybean carbon and nitrogen metabolism, yield and quality |
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| DOI：10.7606/j.issn.1000-7601.2011.03.24 |
| 中文关键词: 大豆 碳氮代谢 产量 品质 |
| 英文关键词:soybean carbon and nitrogen metabolism yield quality |
| 基金项目:国家“十五”科技攻关项目(2004BA907A26-0206) |
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| 中文摘要: |
| 以垦农4号大豆为试验材料,在大田条件下,研究了密度对大豆群体碳氮代谢相关指标及产量品质的影响。结果表明,群体单株叶片氮素、可溶性蛋白、淀粉及蔗糖积累量均随着密度的增加而下降,低密度与高密度群体间差距显著;随着种植密度的增加,大豆子粒中蛋白质的含量有所上升,脂肪的含量有所下降;各生育时期氮素、可溶性蛋白、淀粉和蔗糖积累量与子粒蛋白质含量呈负相关,与脂肪含量呈正相关;随着种植密度的增加,群体内单株的荚数、粒数、粒重逐渐减少。在密度36万株/hm2时,群体产量最高。 |
| 英文摘要: |
| Effects of plant density on carbon and nitrogen metabolism, yield and quality of soybean cultivar Kennong
4 were investigated in field. The results showed that nitrogen， soluble protein，starch and cane sugar accumulation in-creased gradually with the increase of plant density，and there was significant difference among different density of soy-bean populations; With the increase of density，the proten content in soybean seed increased but fat content decreased; Through analyzing correlation at each stage， we known that there was a negative correlation among nitrogen, soluble pro-tein, starch and cane suqar accumulation and proten content， and a positive correlation with fat content; The pod num-ber，seed mumber and seed weight went higher when the density got smaller, and the yield of 3.6×105-plants-per-hm2 reached to the highest. |
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