【作者】 张伟龙； 张春宝； 闫昊； 彭宝； 赵丽梅； 张井勇； 张伟； 王曙明； 孙寰；

【Author】 ZHANG Wei-long;ZHANG Chun-bao;YAN Hao;PENG Bao;ZHAO Li-mei;ZHANG Jing-yong;ZHANG Wei;WANG Shu-ming;SUN Huan;Soybean Research Institute,Jilin Academy of Agricultural Sciences/National Soybean Engineering Technology Research Center;

【机构】 吉林省农业科学院大豆研究所/大豆国家工程研究中心；

【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和20万株·hm^-2)和3个底肥施氮量(100,200,和300kg·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达到显著水平,以10万株·hm^-2种植密度配合100 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差异不显著,最高制种产量为15万株·hm^-2种植密度配合200 kg·hm^-2底肥施氮量,达到1395.72kg·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。更多还原

【Abstract】 In order to improve the seed production output of hybrid soybean sterile line,tests for hybrid seed production were conducted in Taonan Experiment State of Jilin Academy of Agricultural Sciences,2011 and 2012.JLCMS34 A of soybean cytoplasmic male sterile line,in the tests,was female parent,and JLCMS34 B of its homo-maintain line was male parent.Nine kinds of influences on seed-setting rate of sterile line,hybrid seed production and yield components were studied by setting three densities-100,150 and 200 thousand ·hm^-2-and three nitrogen application rates in base fertilizer-100,200 and 300kg·hm^-2.The test results showed that density has significant effects on seed-setting rate and hybrid seed production yield of sterile line.The seed-setting rate is highest when density is 100 thousand plants·hm^-2,while hybrid seed production yield is highest when density is 150 thousand plants·hm^-2.Moreover,the seed-setting rate will gradually decrease with the increase of density.In 2011,the interaction between density and nitrogen application rate had significant effects on the seed-setting rate.The highest seed-setting rate was 67.28%when combining 100 thousand plants·hm^-2 of density with 100kg·hm^-2 nitrogen application rate in base fertilizer.However,the interaction between density and nitrogen application rate had no significant effects on hybrid seed production yield.The hybrid seed production yield was highest,up to 1395.72kg·hm^-2,when combining 150 thousand plants·hm^-2 of density with 200 kg·hm^-2 nitrogen application rate in base fertilizer.Moreover,the nitrogen application rate also had no significant effects on seed-setting rate and hybrid production yield of sterile line,and the interaction variance was not obvious.更多还原