Abstract:

Under natural conditions, the four-to-five-year-old Plants of A. konjac bloom in April. By crossing with A. cor-rugatus, normal hybrid seeds were harvested. When konjac corms with flower buds were stored at 6-9℃,their flower period was deayed by about 4 months, thus can overlap with the flower peried of A. albus and make the crosses between the two species possible. Hybrid seeds of reciProcal crosses were obtained. By Pre-treating the corms with no flower buds with 100x10-6 GA3male-sterle flowers were induced. When pollinated with pollen of A. albus and other species, normal seeds were obtained.Cultivation of the hybrids thus obtained shows that the Fl generation were matroclinous in character. Strains of excellent characters were selected from the hybrid population.

Key words: Amorphophallus konjac, artificial adjustment, crossbreeding