Tropical Grasslands (2001) Volume 35, 1925
Method and time of establishing Paspalum atratum seed crops in Thailand
M.D. HARE, C. KAEWKUNYA, P. TATSAPONG, K. WONGPICHET, K. THUMMASAENG and W. SURIYAJANTRATONG
Faculty of Agriculture, Ubon Ratchathani University, Ubon Ratchathani, Thailand
Seed crops of Paspalum atratum cv. Ubon established by sowing seed produced no seed at all in the first year of establishment in Thailand. By comparison, seed crops planted with tillers at the beginning of the wet season in May produced 132 kg/ha seed 5 months after planting in one trial and 330 kg/ha seed in a second trial. In the second trial, delay in planting tillers until June and July severely reduced seed yields from a high of 330 kg/ha when planted in early May to a low of 25 kg/ha when planted in mid-July. Inflorescences/m2 and seeds/inflorescence had the greatest effect on seed yield.