安徽农业科学2016，Vol.44Issue(25)：14-17,4.
父母本行比及氮肥施用量对杂交小麦制种产量及其构成因素的影响
Effect of Different Row Ratios between Male and Female Parents and Application Amount of Nitrogen Fertilizer on Hybrid Wheat Seed Production and Its Component Factors
摘要
Abstract
Objective] To screen a high-yielding seed production technique suitable for different hybrids wheat genotypes.[Method] Effect of different row ratios between male and female parents and application amount of nitrogen fertilizer on hybrid wheat seed production and its component factors were researched by using split plot design method.[Result] Production of hybrid seeds increased as female parent rows rose, the· yield of producing seed was 3 683.5 kg/hm2 at 2∶6 row ratio;yield of producing seed was 3 649.4 kg/hm2 at the nitrogen applica-tion of 450 kg/hm2; the highest yield of seed production was up to 4 160.6 kg/hm2 in the combination of the male and female partent row ratio of 2∶6 with the nitrogen application of 300 kg/hm2 .There were significant effects of row-ratio of male and female parent and the application a-mount of nitrogen fertilizer to yield components on the grain number, grain weight and seed setting.The grain number per spike, spike weight and seed setting were the highest (26.7 grains, 1.12 g and 62.6%) at the parent row ratio of 2∶5;the grain number per spike, spike weight and seed setting were the highest (26.0 grains, 1.08 g and 59.2%) at nitrogen fertilizer application of 450 kg/hm2 .Row-ratio of male and female and application amount of nitrogenous fertilizer showed that the grain number per spike , spike weight and seed setting percentage had a significant impact;when the row-ratio of male and female parent was 2∶5 and the nitrogen application was 300 kg/hm2;and grain number per spike, spike weight and seed setting percentage were the highest, which were 29.6 grains, 1.24 g and 71.6%, respectively.[Conclusion] Grain number per spike id the largest components factor to influence the yield of producing seed , increasing the number of grains can improve yield of hybrid seed production.Combining row-ratio of male and female with application amount of nitrogenous fertilizer affects the yield of producing seed, its components etc.The best treatment of this experiment is the parent row-ratio of 2∶5 -2∶6 with nitrogenous fertilizer appli-cation of 300 kg/hm2 .关键词
父母本行比/氮肥/制种产量/杂交小麦Key words
Row-ratio between male and female/Nitrogen fertilizer/Yield of seed production/Hybrid wheat分类
农业科技引用本文复制引用
阮仁武,严莉莉,胡丹,刘星贝,佘恒志,徐曼曼,李中安,易泽林,杨宇衡..父母本行比及氮肥施用量对杂交小麦制种产量及其构成因素的影响[J].安徽农业科学,2016,44(25):14-17,4.基金项目
重庆市应用开发计划重点项目（csct2013yykfB80012）；中央高校基本业务费专项资金（XDJK2016A020）。 （）
