Effects of planting density on growth and yield of vegetable soybean varieties

Effects of planting density on growth and yield of vegetable soybean varieties

2008

A:PS

The objective of experiment was to investigate the effects of planting density on growth and yield of vegetable soybean, and to clarifY the optimum planting density of vegetable soybean in the middle west region of Korea. The field experiment with 4 levels of planting density was carried out at Yesan area in 2005 2006. The days from seeding to flowering and the days from seeding to harvesting and lodging were not significantly ddferent among planting distance. The stem length was increased as planting distance was shortened but the number of node, branch, pod per branch, pod per individual, weight of stem and pod, one hundred pod weight and rate of 2+3 seed per pod were decreased as planting density was increased. The size of vegetable soybeans was not significantly different among planting distance, but the harvest index of vegetable soybean was decreased as planting distance was shOliened. Yield of vegetable soybean was increased as planting distance was decreased. However, the approriate densities for stem and pod weight per a plant, number of pod per a branch and the vegetable soybean yield of 2+3 seed per pod were diffreent from that density. The optimal planting distance of varieties was 60x25 cm in Sunheukkong and IIpumgeom-jeongkong and was 60x35 cm in Galmikong.

v.53(1):64-69, KOREAN JOURNAL OF CROP SCIENCE

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