Effects of Endogenous and Exogenous Plant Growth Substances on Development and Yield of Soybeans
Development of commercially useful plant growth regulators (PGR) for soybeans has proven to be a major challenge. It seems that the regulation of soybean yield is highly self-compensating. Our program therefore, was first to understand the endogenous regulation of yield components. We hope information from this work will provide a basis for biorational selection processes for PGRs. Endogenous plant growth substances (PGS) have been implicated in the regulation of reproductive development of soybeans [1–3, 5, 7, 8, 14–18]. This report describes the longdistance transport of PGSs throughout soybean plants and suggests roles for PGS in the movement of photoassimilates to developing seeds.
KeywordsSoybean Plant Sucrose Uptake Vegetative Plant Plant Growth Substance Reproductive Plant
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