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中国农学通报

中国农学通报 ›› 2015, Vol. 31 ›› Issue (27): 53-58.doi: 10.11924/j.issn.1000-6850.casb15030050

所属专题： 玉米

• 农学 农业基础科学 • 上一篇    下一篇

不同类型玉米品种产量和品质相关性状对种植密度的响应

张郑伟,王晳玮,路运才   

  1. 黑龙江大学农业资源与环境学院/农业资源利用与环境安全重点实验室,黑龙江大学农作物研究院,黑龙江大学农业资源与环境学院/农业资源利用与环境安全重点实验室
  • 收稿日期:2015-03-08 修回日期:2015-08-27 接受日期:2015-04-09 出版日期:2015-09-23 发布日期:2015-09-23
  • 通讯作者: 路运才
  • 基金资助:
    黑龙江省农业科技成果转化项目 “优质多抗青贮玉米新品种丰禾 4号高效生产集成技术研究与示范” (NB08B008)； 黑龙江省教育厅科学技术项目 “玉米抗冷出苗优异种质发掘及抗冷相关基因克隆” (12541628)。

Response of Yield and Quality Related Traits to Planting Densities in Different Maize Cultivars

  • Received:2015-03-08 Revised:2015-08-27 Accepted:2015-04-09 Online:2015-09-23 Published:2015-09-23

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摘要： 以不同类型的 4个玉米品种为材料， 探讨产量和品质等相关性状对种植密度的响应。设置 5个不同梯度的种植密度， 对供试品种进行农艺和品质性状的测定。结果表明， 从生物产量上看 ，‘郑单958’ 、 丰禾‘ 4 号’ 、 龙育‘ 1 号’ 和 ‘黑饲 1 号’ 的最适种植密度分别为 7.5 万株/hm2、 8.2 万株/hm2、8.2万株/hm2~9.0万株/hm2和 8.2万株/hm2。不同种植密度下， 供试品种穗位高差异不显著， 3个青贮玉米品种株高均无显著差异。在相同种植密度下， 普通玉米品种 ‘郑单 958’ 的株高和穗位高显著低于 3个青贮玉米。不同品种的 4个品质性状对种植密度的响应存在差异。种植密度与生物产量间的相关性分析表明 ，‘黑饲 1号’ 呈负相关， 其他 3个品种呈正相关。因此， 需要根据品种特点进行合理密植， 以期达到效益最大化。

关键词: 山西春季大风异常, 山西春季大风异常, 大气环流异常, 太平洋海温异常

Abstract: In this study, four different maize varieties were used to explore the influence of planting density on the biomass and quality traits. In order to determine the agronomic and quality traits of the tested varieties, five planting densities were designed. The results showed that the optimum planting density of‘Zhengdan 958’ ,‘Fenghe 4’ ,‘Longyu 1’and‘Heisi 1’were 75000 plants/hm2, 82000 plants/hm2, 82000-90000 plants/hm2 and 82000 plants/hm2. Under different planting densities, difference of the ear height of the four varieties was not significant, and plant height of three silage maize varieties also had no significant difference. The plant height and ear height of‘Zhengdan 958’were lower than that of the other three silage maize varieties with the same plant density. Quality traits of the four varieties had different responses to corresponding planting density. Correlation between planting density and biomass yield of‘Heisi 1’was negative, while that of the other three varieties were positively correlated. Therefore, in order to achieve high biomass, reasonable plant density should be chosen based on the characteristics of variety.