تناسب رقم جدید سویا با یافته تحقیقاتی الگوی کاشت در مزارع استان گلستان

In order to determine conformity of new variety with research founding, this study was conducted after release of new variety of Katul in 2010T. planting date and pattern of commercial variety of soybean, Katul, was determined in a an experiment as split plot factorial in randomized complete block design in Gorgan station in three replication and two years (2006-2007). Three Planting dates were as main plot(from fifth of may interwall,25 days) and 3 row distance, 40, 50, 60 cm with 3 densities, 100, 200 and 300 thousand plant in hectare in a combined form as subplot. The most yield produced in the first year (3600 kg/ha) and in the second year 500 kg decreased. Planting dates did not show significant difference but its interaction effect with row distance showed significant difference. The most seed yield produced from the spring planting dates and 50 cm row spacing with, 3131 kg/ha. Planting density did not show significant differences and the most yield was produced in 200 thousand plant per hectare with 2924 kg/ha.Plant height showed significant difference in planting dates and the height of the first node with pod showed significant difference in different row densities. The number of sub branch and pod showed significant difference in different densities too. The katul seed yield was followed in some fields of farmers and the results showed that the yield in different condition in fields was acceptable. This study showed that the commercial variety of Katul has a high potential to produce flower and pod in different planting dates and as a late maturity group despite, decrease the period of growth has an appropriate stability for seed yield.