不同播期播量对不同类型超级小麦产量构成因子的影响  

Effect of different sowing time and seed dosage on yield of different genotypes of super wheats

作　　者：李素真[1] 周爱莲[1] 王霖[1] 王秋云[1] 孙雷鸣[1] 赵凯[1] 

机构地区：[1]济宁市农业科学研究院,山东济宁272131

出　　处：《山东农业科学》2005年第5期12-15,共4页Shandong Agricultural Sciences

基　　金：山东省科技厅重点科研项目"超级小麦育种与技术研究"([2004]113);农业部农业结构调整重大技术专项"超级小麦新品种选育与示范"(05-02-02B);国家粮食丰产工程"粮食作物可持续超高产理论与技术模式研究"资助

摘　　要：以大穗型(01-35、8355)、中间型(62008、4133-2)和多穗型(988044、02-48)超级小麦品种(系)为试材,研究其适宜播期和播量。结果表明,大穗型品种最佳播期10月15日,中间型、多穗型品种最佳播期10月5日,播期对单位面积穗数的影响差别最高可达15%以上,对穗粒数、千粒重和产量的影响差别均在13%以下;播量对其各项指标的影响差别均在5%以下,3种类型的品种均以中、高密度产量较高。播期对超级小麦产量各构成因素的影响大于播量。The experiment was conducted to optimize the sowing time and seed dosage of different super wheat genotypes with three genotypes of the large ear cultivars （01-35,8355）, the middle ear cultivars（62008,4133-2） and the many ears cultivars（988044,02-48）. The results showed that the optimal sowing time of the large ear cultivars was 15th October ,and that of the middle ear cultivars and the many ears cultivars was 5th October. In different sowing time, the difference value of ears per certain area was more than 15%, while that of grains per ear, weight per thousand grains and yield was lower than 13%. And the differences of all indexes were under 5% in different seed dosage. The yields of three genotypes were all higher in middle and high density. The effect of sowing time on the yields of super wheats was greater than that of seed dosage.

关 键 词：超级小麦 播期 播量 产量构成因子 

分 类 号：S512.110.4[农业科学—作物学]