Zhou Yugang (Mianyang Institute of Agricultural Sciences, Sichuan Province) Pang Chunpeng Luo Ning Tang Yan (Sichuan Guohao Seed Co., Ltd.) Mianyou ll is a recessive nuclear sterile two-line hybrid cultivated by the Mianyang City Agricultural Research Institute. It has been producing seeds since 1999 and its products are very popular. The appropriate density and nitrogen fertilizer application in the seed production is a key link. Through this experiment, the appropriate density and nitrogen application rate for the two-line nuclear sterile Mianyou 11 are estimated to guide the production of field seed production. Improve seed production. Table 1 Factor Level Table factor -γ -1 0 1 Gamma Density X1 90000 147120 285000 422880 480000 Nitrogen fertilizer X2 0 68.85 225.00 384.15 450.00 1 Materials and Methods 1.1 Test materials Mianyou 11 (9AB-l× Mianhui No. 6), the female parent is a two-line recessive genic male sterile line, and the sterile line rate is about 50%. It is necessary to remove the fertile lines in time before the initial flowering. 1.2 Test treatment and field design Two-factor quadratic regression rotation combination design (Table 1), random block arrangement, plot area 22.4m2 (4.0m x 5.6m), two rows of male parents, equal rows, row spacing 0.4m, The father's pit is 0.27m, between the groups is 0.6m, and the interval is 0.2m. 1.3 Test time, location and profile Market And Applications,Fumed Silica Features And Applications,Use Of Fumed Silica,Silica Performance And Benefits Henan Minmetals East New Materials CO. LTD. , https://www.minmetals-easts.com
Effects of Different Density and Nitrogen Fertilizer on the Seed Production of Mianyou 11