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农学学报 ›› 2016, Vol. 6 ›› Issue (9): 27-30.doi: 10.11923/j.issn.2095-4050.cjas16040031

• 农艺科学 生理生化 • 上一篇    下一篇

密度对矮杆早熟新品种‘吉杂141’高粱的产量及产量性状的影响

申晓慧,冯鹏,李如来,陈冰嬬,郑海燕,李志民,李增杰,姜成   

  1. 黑龙江省农业科学院佳木斯分院,黑龙江省农业科学院佳木斯分院,黑龙江省农业科学院佳木斯分院,吉林省农科院作物育种研究所,黑龙江省农业科学院佳木斯分院,黑龙江省农业科学院佳木斯分院,黑龙江省农业科学院佳木斯分院,佳木斯大学生命科学学院
  • 收稿日期:2016-04-26 修回日期:2016-06-16 接受日期:2016-06-24 出版日期:2016-09-29 发布日期:2016-09-29
  • 通讯作者: 申晓慧 E-mail:15904540498
  • 基金资助:
    国家高粱产业技术体系建设专项(CARS-06-01-03)

Effects of Planting Densities on Yield and Agronomic Traits of Early Maturing Short-Stalked New Variety Sorghum ‘Jiza141’

陈冰嬬,郑海燕,李志民,李增杰 and 姜成   

  • Received:2016-04-26 Revised:2016-06-16 Accepted:2016-06-24 Online:2016-09-29 Published:2016-09-29

摘要: 合理的种植密度有利于提高高粱的生产潜力。本试验为了阐明矮秆早熟高粱品种‘吉杂141’在佳木斯地区的合理播种密度,在大田试验条件下,设置了15、20、25、30、35万株//hm2 4种播种密度,研究不同密度对产量及产量性状的影响。结果表明:随着种植密度的增大,叶面积指数增加,叶绿素含量下降,株高差异不显著,穗长、穗粗逐渐下降,高密度生物产量高于低密度,千粒重和单穗重对产量影响最大,二者与产量均呈正相关关系。在佳木斯地区,‘吉杂141’最适播种密度为20万株/hm2,产量可达到9183.00 kg/hm2。为该品种在本地的推广和应用提供了理论依据和技术支撑。

关键词: 多元素长效碳铵颗粒肥, 多元素长效碳铵颗粒肥, 尿素, 氮素, 释放特征

Abstract: The suitable combination of planting density was favorable for the yield increase of sorghum cultivar. In order to determine rational planting density of sorghum ‘Jiza141’, construct the good population structure, and give full play to the potential yield of sorghum varieties. The purpose of this research was to investigate the effects of plant density on agronomic characters and grain yield under varying plant densities 150000,200000,250000,300000,350000 plants/hm2. The results showed that with the increase of planting density, plant length was no significant difference, era length and era diameter tended to decrease, While biomass were high density exceed low density, The effects of planting density on yield traits were mainly 1000- grain weight and single panicle weight, and yield both showed a significant positive correlation, and both have a higher impact coordination on yield. In the Jiamusi growing areas,Optimal plant density for brew sorghum ‘Jiza141’production in this environment was 20000 or 30000 plants/hm2. It can obtain a high yield and the highest yield was 9183.00 kg/hm2 , under this density ,it can construct the good population, optimize light energy utilization efficiency, coordinate population growth and individual growth, which made grain yield to achieve higher level.

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