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Physiology of seed yield in soybean: Growth and dry matter production

机译:大豆种子产量的生理:生长和干物质生产

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A field study was?conducted to assess the growth parameters controlling the dry matter and seed yield of soybean. The result shows?that growth rate was slow during vegetative phase in all genotypes. A relatively smaller portion of total dry mass (TDM) was produced before flower initiation and the bulk of it after anthesis. Maximum absolute?growth rate (AGR) was observed during pod filling stage in all genotypes due to maximum leaf area (LA) development and leaf area index (LAI) at this stage. Plant characters like LAI and AGR contributed to higher TDM production. Results indicate that a high yielding soybean genotype should possess larger LAI, higher TDM production ability and higher AGR at all growth stages.
机译:进行了田间研究以评估控制大豆干物质和种子产量的生长参数。结果表明,所有基因型在营养期的生长速度均较慢。在花开始前产生相对较小的总干重(TDM),而在花后产生大部分。由于该阶段的最大叶面积(LA)发育和叶面积指数(LAI),在所有基因型的豆荚灌浆阶段均观察到最大绝对生长率(AGR)。 LAI和AGR等植物性状有助于提高TDM产量。结果表明,高产大豆基因型在所有生育阶段均应具有较大的LAI,较高的TDM生产能力和较高的AGR。

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