欢迎访问《中国农学通报》,

中国农学通报 ›› 2018, Vol. 34 ›› Issue (13): 14-18.doi: 10.11924/j.issn.1000-6850.casb17040004

所属专题: 玉米

• 农学 农业基础科学 • 上一篇    下一篇

不同行距配置对玉米雌雄开花间隔和产量的影响

杜艳伟,王高鸿,李颜方,张正,阎晓光,赵根友,赵晋锋   

  1. 山西省农科院谷子研究所,山西省农科院谷子研究所,山西省农科院谷子研究所,山西省农科院谷子研究所,山西省农科院谷子研究所,山西省农科院谷子研究所,山西省农科院谷子研究所
  • 收稿日期:2017-04-01 修回日期:2018-04-11 接受日期:2017-05-25 出版日期:2018-05-07 发布日期:2018-05-07
  • 通讯作者: 赵晋锋
  • 基金资助:
    国家转基因生物新品种培育重大专项“抗纹枯病转基因育种新材料获得”(2011ZX08003-001);山西省农业科学院博士研究基金“一个 SAM合成通路中的变异对拟南芥甲硫氨酸积累和抗逆性的影响”(YBSJJ1306)。

Different Row Spacing Allocation: Effect on Anthesis Silking Interval and Yield of Maize

赵根友 and   

  • Received:2017-04-01 Revised:2018-04-11 Accepted:2017-05-25 Online:2018-05-07 Published:2018-05-07

摘要: 以大丰30为实验材料,在同一密度下(67500株/ hm2)设置5种不同行距配置(60cm*60cm,50cm*70cm、40cm*80cm、30cm*90cm和20cm*100cm),研究不同行距配置对雌雄穗开花间隔(ASI)、千粒重、穗粒数、总穗数和产量的影响。结果表明,不同行距配置下,产量、千粒重、穗粒数和总穗数的变异系数均在5%以下,ASI的变异系数在4.33%-12.50%。各处理的ASI、穗粒数和产量差异呈极显著水平,但千粒重和总穗数差异不显著。多重比较的结果表明行距配置为40cm*80cm时雌雄穗开花间隔时间较短,穗粒数较多,产量又达到了最高水平,为最佳行距配置。

关键词: 甘蓝, 甘蓝, CMS, 未受精子房, 离体培养

Abstract: The aim is to provide a theory basis for the optimum row spacing allocation of major maize varieties in southeast Shanxi.‘Dafeng 30’was used as material in this study. Under the same density, the effects of different row spacing allocation on anthesis-silking interval (ASI), thousand grain weights, grain number per panicle, total panicle number and yield were analyzed. The results showed that the variation coefficient of yield, thousand grain weights, grain number per panicle and total panicle number were below 5% under different row spacing allocation, while the ASI was between 4.33%-12.50%. There were significant differences of ASI, grain number per panicle and yield among different treatments, but the differences of thousand grain weights and total panicle number were not significant. Multiple comparisons showed that ASI was the shortest, the grain number per panicle was more, and the yield was the highest under the 40 cm×80 cm row spacing. Therefore, when planting‘Dafeng 30’in southeast Shanxi, using 40 cm×80 cm row spacing could obtain the shortest ASI and higher yield.