Abstract
Fruiting is not expected with the inperfectly grown pistil. In buckwheat "day length" is highly influencial in inducing the retarded growth of pistil. Retardation of growth is serious in proportion to day length during the progress of its growth, such as vegetable period and differentiation of the flower-bud. It is interesting that there is varietal difference in the retardation of growth of pistil as influenced by the day-length.
