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九二○在杂交水稻制种生产上应用以来,对大幅度提高异交率,促进制种增产起了很大作用。提高异交率是一项变幅大、技术性强的措施。为探讨九二○的喷施技术效果,特进行本试验。 材料与方法 试验地设在平原区埔上乡前山自然村制种基地,组合是汕优桂99,小区面积0.05亩;试验分设不同配方试验和不同喷期试验。
Since the application of hybrid seed production in September 20,2010, it has played a significant role in significantly raising the rate of out-crossing and in boosting seed production. Raising the out-of-court rate is a large-scale and highly technical measure. In order to explore the spraying effect of 920, especially for the test. Materials and methods were experimentally located in the seed production base of Qianshan Natural Village, Pu Shangxiang, Pingyuan District. The combination was Shanyougui 99 and the plot area was 0.05mu. The experiment consisted of different formulation experiments and different spraying periods.