华北农学报 ›› 2020, Vol. 35 ›› Issue (1): 96-105. doi: 10.7668/hbnxb.20190398

所属专题: 玉米

• 耕作栽培·生理生化 • 上一篇    下一篇

青贮玉米不同器官产量贡献率对密度调控的响应

孙继颖1, 高聚林1, 王志刚1, 于晓芳1, 包海柱1, 胡树平2, 刘剑2, 白云龙3, 闫东3   

  1. 1. 内蒙古农业大学 农学院, 内蒙古 呼和浩特 010019;
    2. 内蒙古农业大学 职业技术学院, 内蒙古 包头 014109;
    3. 内蒙古自治区土壤肥料和节水农业工作站, 内蒙古 呼和浩特 010019
  • 收稿日期:2019-08-13 出版日期:2020-02-28
  • 通讯作者: 高聚林(1964-),男,内蒙古鄂尔多斯人,教授,博士,博士生导师,主要从事玉米生理生态及决策系统研究。
  • 作者简介:孙继颖(1972-),女,内蒙古呼和浩特人,副教授,博士,主要从事玉米种质资源及玉米栽培生理研究。
  • 基金资助:
    国家重点研发计划课题(2017YFD0300802);内蒙古自治区主席基金课题内蒙古自治区中加饲用玉米试验与示范;内蒙古自然科学基金课题(2017MS0348);农业农村部华北黄土高原地区作物栽培科学观测实验站(25204120);国家玉米产业技术体系(CARS-02-63)

Response by Planting Density on Yield Contribution of Different Organ to the Whole Plant in Silage Maize

SUN Jiying1, GAO Julin1, WANG Zhigang1, YU Xiaofang1, BAO Haizhu1, HU Shuping2, LIU Jian2, BAI Yunlong3, YAN Dong3   

  1. 1. Agricultural College, Inner Mongolia Agricultural University, Hohhot 010019, China;
    2. Vocational and Technical College, Inner Mongolia Agricultural University, Baotou 014109, China;
    3. Soil Fertilizer and Water-saving Agriculture Work Station in Inner Mongolia Autonomous Region, Hohhot 010019, China
  • Received:2019-08-13 Published:2020-02-28

摘要: 为揭示不同类型青贮玉米各器官产量对于密度调控的响应规律,以粮饲兼用型品种冀承单3号及青贮专用型品种真金青贮31号为供试材料,设5个密度梯度,分别为45 000,60 000,75 000,90 000,97 500株/hm2,采用随机区组试验设计,进行了青贮玉米不同器官对全株饲用产量贡献率的比较研究。结果表明:冀承单3号全株产量主要贡献器官为籽粒,其次是茎秆和叶片;在45 000株/hm2及97 500株/hm2密度下,真金青贮31号全株产量主要贡献器官为叶片,其次为茎秆,再次为籽粒;而在75 000株/hm2密度下,真金青贮31号全株产量主要贡献器官为籽粒,其次为叶片,再次为茎秆。随着种植密度的增加,茎秆及叶片产量贡献率呈现先降后升变化趋势,苞叶、穗轴及籽粒呈现先升后降变化趋势;而茎秆及叶片含水率随着密度的增加呈现先升后降变化趋势,苞叶、穗轴及籽粒含水率随着密度增加呈现先降后升变化趋势。全株产量与鲜草器官产量呈正相关关系,与籽粒器官产量呈负相关关系,各器官产量均与其含水量呈负相关关系。从全株青贮产量最高角度,推荐冀承单3号适宜种植密度90 000株/hm2,推荐真金青贮31号适宜种植密度75 000株/hm2

关键词: 青贮玉米, 饲用产品器官, 产量贡献率, 密度调控

Abstract: To research the characteristics of response by planting density in each organ yield for different type silage maize,food-forage dual purpose maize Jichengdan 3 and forage maize Zhenjin 31 were used as trial materials under the density of five different levels as 45 000,60 000,75 000,90 000,97 500 plants/ha by randomized block design. The yield contribution by different organ to the whole plant of different silage maize was compared. The result showed that:The main contribution organ of plant yield for Jichengdan 3 was the kernel under the condition of all trial density,the second was the stem and the third was the leaves. Under the density of 45 000 plants/ha and 97 500 plants/ha,the main contribution organ for Zhenjin 31 was the leaves,the second was the stem and the third was the kernel; Under the density of 75 000 plants/ha,the main contribution organ for Zhenjin 31 was the kernel,the second was the leaves and the third was the stem. With the increase of planting density,the yield contribution of stem and leaves presented first down and then up trend; the contribution of the bract,the spike-stalk and the kernel presented first up and then down trend. While with the increase of planting density,the moisture content of stem and leaves presented first up and then down trend,the moisture content of the bract,the spike-stalk and the kernel presented first down and then up trend. The forage yield of the whole plant presented the positive correlation with the yield of straw organ,and the negative correlation with the kernel organ; to all kinds of organ,including the straw organ and kernel organ,there were negative correlation between the yield and the moisture content. Consideration of the highest forage yield,the recommendation of the suitable density was 90 000 plants/ha for Jichengdan 3,and 75 000 plants/ha for Zhenjin 31.

Key words: Silage maize, Forage product organs, Yield contribution, Density control

中图分类号: 

引用本文

孙继颖, 高聚林, 王志刚, 于晓芳, 包海柱, 胡树平, 刘剑, 白云龙, 闫东. 青贮玉米不同器官产量贡献率对密度调控的响应[J]. 华北农学报, 2020, 35(1): 96-105. doi: 10.7668/hbnxb.20190398.

SUN Jiying, GAO Julin, WANG Zhigang, YU Xiaofang, BAO Haizhu, HU Shuping, LIU Jian, BAI Yunlong, YAN Dong. Response by Planting Density on Yield Contribution of Different Organ to the Whole Plant in Silage Maize[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2020, 35(1): 96-105. doi: 10.7668/hbnxb.20190398.

使用本文

0
    /   /   推荐 /   导出引用

链接本文: http://www.hbnxb.net/CN/10.7668/hbnxb.20190398

               http://www.hbnxb.net/CN/Y2020/V35/I1/96