| 密度与施氮量对大豆细胞质雄性不育系结实率及制种产量的影响 |
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| 引用本文： | 张伟龙,闫昊,张春宝,张井勇,彭宝,赵丽梅.密度与施氮量对大豆细胞质雄性不育系结实率及制种产量的影响[J].吉林农业大学学报,2016(6). |
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| 作者姓名： | 张伟龙 闫昊 张春宝 张井勇 彭宝 赵丽梅 |
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| 作者单位： | 吉林省农业科学院大豆研究所/大豆国家工程研究中心,长春,130033 |
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| 基金项目： | 吉林省科技创新与科技成果转化计划项目(201503120032G)，国家自然科学基金项目(31301399)，国家重点研发计划项目(2016YFD0101502) |
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| 摘 要： | 为提高杂交大豆不育系制种产量,以大豆细胞质雄性不育系JLCMS34A为母本,其同型保持系JLCMS34B为父本,于2011年和2012年在吉林省农业科学院洮南试验站进行制种试验。试验设3个密度(10,15,20万株/hm~2)和3个底肥施氮量(64,128,192 kg/hm~2),研究了9个处理对不育系结实率、制种产量及产量构成因素的影响。结果表明:密度对不育系结实率和制种产量影响均达到显著水平,密度10万株/hm~2的结实率最高,密度15万株/hm~2的制种产量最高,并且随着密度增加结实率逐渐降低。2011年密度与施氮量互作对结实率影响达到显著水平,以10万株/hm~2种植密度配合64 kg/hm~2底肥施氮量的结实率最高,为67.28%;密度与施氮量互作对制种产量影响差异不显著,种植密度为15万株/hm~2配合128 kg/hm~2底肥施氮量,最高制种产量达到1 395.72 kg/hm~2;底肥施氮量对不育系结实率和制种产量差异不显著,互作差异性也未达到显著水平。
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| 关 键 词： | 大豆细胞质雄性不育 结实率 制种产量 密度 施氮量 |
Effects of Density and Nitrogen Application Amount on Seed-setting Rate and Seed Production Yield of Soybean Cytoplasmic Male Sterile Line |
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| Abstract: | In order to improve seed production yield of hybrid soybean sterile line,tests for hybrid seed production were conducted in Taonan Experiment State of Jilin Academy of Agricultural Sciences,in 2011 and 2012.JLCMS34A of soybean cytoplasmic male sterile line was used as female parent,and JLCMS34B of its homo-maintain line as male parent.Effects of 9 treatments on seed-setting rate of sterile line,hybrid seed production and yield components were studied by designs of three densities (64,128 and 192 kg/hm2) and three nitrogen application amounts in base fertilizer (100,200 and 300 kg/hm2).The results showed that density significantly affected seed-setting rate and seed yield of sterile line.Seed-setting rate gradually declined with the increase of density.Seed-setting rate was the highest at 100 thousand plants/hm2,while hybrid seed production yield was thehighest when density was 150 thousand plants/hm2.In 2011,the interaction between density and nitrogen application amount had significant effects on seed-setting rate.The highest seed-setting rate was 67.28％ when 100 thousand plants/hm2 of density was combined with 64 kg/hm2 nitrogen application amount in base fertilizer.However,the interaction between density and nitrogen application amount had no significant effects on hybrid seed production yield.Hybrid seed production yield was the highest,up to 1 395.72 kg/hm2,when 150 thousand plants/hm2 of density was combined with 128 kg/hm2 nitrogen application amount in base fertilizer.Moreover,nitrogen application amount also had no significant effects on seed-setting rate and hybrid production yield of sterile line,and the interaction variance was not obvious. |
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| Keywords: | soybean cytoplasmic male sterility seed-setting rate seed production yield density nitrogen application amount |
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