STUDY ON ECOLOGICAL ADAPTABILITY OF SOYBEAN AND ITS APPLICATION IN GUIZHOU —— Ⅱ ECOLOGICAL CONDITION FOR SOYBEAN CULTIVATION OF GUIZHOU ANE THD REGIONAL ADAPTABILITY OF VARIOUS VARIETIES
He Yuanlong He Yanzhang Ruan Jiyao Luo Xiangyuan (Institute of Oil-crops, Guizhou Academy of Agricultural Science)
The ecological variations of growing periods, plant characters and productivities of soybean under differnt sowing times and altitude regions from east to west of Guizhou were analysed. The cause of forming a concave curve distribution of flowering period and its relation to bear pods were especially discussed. Twe adaptableways--avoidness and patience of varietal types to the climate conditions of differentecological areas were too analysed. Accordingly, some suiuable objectives for breeding, introduction of variety and agronomy in Guizhou have been put forward.