Grain yield and growth of upland rice is associated with Graham stylo, Khon Kaen Stylo and Centrosema
1991
Supachai Udchachon | Watcharin Boonpukdee (Khon Kaen Animal Nutrition Research Center, Khon Kaen (Thailand)) | Sagol Apinackpong
Sowing three different growth habit legume species including, Stylosanthes guianensis cv. Graham, Stylosanthes humilis cv. Khon Kaen and Centrosema pubescens inter row with upland rice was studied, to analyse the growth of both legumes and rice, rice grain yield and its components. Seed germination and seedling growth rate of the climbing legume growth habit species, Centrosema pubescens were faster than other species. Dry matter yield of Centrosema was significantly higher than that of Graham stylo and Khon Kaen stylo. Their dry matter yields were 235.12, 212 and 150.41 kg/rai respectively. There was no significant difference of rice straw dry matter yield between treatments. Dry matter yield of rice straw sowing with Centrosema was lowest, 656.55 kg/rai, whereas that from the pure stand was highest 677.71 kg/rai. Rice grain yield of each treatment were: 352.39, 359.57, 324.41 and 272.05 kg/rai for the pure rice stand, under sown with Khon Kaen stylo, Graham stylo and Centrosema, respectively. There was no significant difference of total dry matter yield of rice straw and legume yield between treatment and that of Graham stylo treatment was the highest 1,068.04 kg/rai.
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