Transmission of the Floral Stimulus in Soybean

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Abstract
When exposed to a 17-hr. photo-period, Peking and Biloxi soybeans will remain vegetative, whereas Agate and Batorawka vars. will flower. Single-leaf grafts of Agate or Batorawka onto Peking or Biloxi receptors result in flowering of the receptor. If the donor petiole is scalded, or if a 1-mm. water gap is interposed between donor and receptor petioles, transfer of the floral stimulus is blocked. These findings are in agreement with the view that the floral stimulus is transferred via living cells exclusively.