Abstract
The complete removal of the reproductive structures once and shoot apices of soybeans (Glycine max L. Merrill) during early anthesis but before the rapid seed development stage significantly increased flowering and pod set in greenhouse and field grown plants. The treated plants had darker green leaves, shorter stems and petioles and retained their chlorophyll content longer than control plants. Pod maturation was also delayed. Although decapitation and the removal of reproductive structures increased the number of 3or more-seeded pods in all varieties tested, seed weight per plant was not consistently increased. The possible involvement of endogenous hormones in pod set and multi-locule pod production in soybeans is discussed.
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