Plant population density trial of soybean in paddy field
1993
Damkerng Pongphan | Udom Promnetr | Sirichai Unsrisong | Reuangchai Juwatanasamran (Maejo Institute of Agricultural Technology, Chiang Mai (Thailand). Faculty of Agricultural Production)
Field investigation were conducted at Maejo University, concerning the relationship of planting density to yield and others agronomic characters of two soybean lines and varietly. Ma no.27-30-B and MA no.27-35-B were the new breeding lines which were compared with CM6+0 represented as the conventional variety. Those were planted at the rated of 20, 30, 40, 50 and 60 plants per square meter in factorial arrangement with 4 replications. The results revealed that MA no.27-35-B was the earliest, and could be harvested at 100 days after planting. The higher plant densities caused earlier harvesting than the lower plant desities, and both soybean lines were earlier than CM60. Increased plant density resulted in increased plant height, number of nos per plant, number of branches per plant, and number of pods per plant, but decreased total seed weight per plant. Seed size was not effected by plant density. Yield were not significantly different among the variety and the two lines tested but increased as the plant density increased especially at the rate of 50 and 60 plants per square meter giving yields of 294.24 and 282.96 kg/rai, respectively.
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
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