[1]岳海旺,陈淑萍,彭海成,等.玉米籽粒灌浆特性品种间比较[J].江苏农业学报,2016,(05):1043-1048.[doi:10.3969/j.issn.1000-4440.2016.05.014]
　YUE Hai-wang,CHEN Shu-ping,PENG Hai-cheng,et al.Grain filling characteristics in maize materials[J].,2016,(05):1043-1048.[doi:10.3969/j.issn.1000-4440.2016.05.014]
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玉米籽粒灌浆特性品种间比较()
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江苏农业学报[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2016年05期
页码:
1043-1048
栏目:
耕作栽培·资源环境
出版日期:
2016-11-22

文章信息/Info

Title:
Grain filling characteristics in maize materials
作者:
岳海旺; 陈淑萍; 彭海成; 宋聪敏; 谢俊良; 李洁; 郭安强; 魏建伟; 卜俊周
河北省农林科学院旱作农业研究所/河北省农作物抗旱研究重点实验室，河北衡水053000
Author(s):
YUE Hai-wang; CHEN Shu-ping; PENG Hai-cheng; SONG Cong-min; XIE Jun-liang; LI Jie;  GUO An-qiang;  WEI Jian-wei; BU Jun-zhou
Dryland Farming Institute,Hebei Academy of Agriculture and Forestry Sciences/Hebei Provincial Key Laboratory of Crops Drought Resistance Research, Hengshui 053000,China
关键词:
玉米; 灌浆特性; 产量
Keywords:
maize; grain filling characteristic; yield
分类号:
S513
DOI:
10.3969/j.issn.1000-4440.2016.05.014
文献标志码:
A
摘要:
为明确黄淮海北部不同玉米品种籽粒灌浆特性的差异，为玉米籽粒熟期选择提供理论依据，以衡早8号玉米杂交种为材料，华美1号和郑单958为对照品种，研究灌浆过程中不同品种籽粒体积、水分含量、籽粒干质量以及灌浆特性的变化，并对产量构成因素进行了分析。结果显示，授粉后20 d是3个玉米品种籽粒体积快速增速期，在授粉后45 d左右3个玉米品种籽粒体积达到最大，衡早8号籽粒体积最大，郑单958最小。授粉15 d内3个玉米品种籽粒干质量增长较为缓慢，授粉15～55 d是籽粒干质量增长快速期，衡早8号籽粒干质量增长速度最快，郑单958最慢，授粉55 d后籽粒干质量增长速度开始放缓。3个玉米品种灌浆速率均呈单峰曲线，灌浆峰值衡早8号最高，郑单958最低。相关分析结果表明籽粒体积与含水量呈正相关，与含水率呈负相关，灌浆速率与含水量呈正相关。通过回归分析得出籽粒含水率在57%左右时3个玉米品种达到各自灌浆最高峰值。运用Logistic模拟方程拟合不同玉米品种的籽粒质量增加过程，衡早8号最大灌浆速率（Gmax）、平均灌浆速率（Gmean）均高于其他2个品种；衡早8号活跃灌浆期、籽粒质量渐增期、快增期和缓增期均低于其他2个品种。3个玉米品种产量差异显著，千粒质量是产量差异的主要原因。衡早8号平均灌浆速率和最大灌浆速率均高于其他2个品种，活跃灌浆期则短于其他2个品种，有利于早熟高产。
Abstract:
A field experiment was conducted to illustrate the grain filling difference in maize materials in the North of Huanghuaihai region, aiming to provide a theoretical basis for the selection of maturity. The new maize hybrid Hengzao 8 was selected as the experimental material, and varieties Huamei 1 and Zhengdan 958 were selected as CK. The changes of grain size,water content,dry weight and grain filling characteristics during grain filling were studied, and the yield components were analyzed. The grain sizes of three maize materials were enlarged rapidly at 20 d post-pollination and maximized at 45 d post-pollination. Hengzao 8 had the biggest grain and Zhengdan 958 showed the smallest. Three maize materials showed fast growth speeds of dry matter at 15-55 days of pollination, Hengzao 8 being the fastest and Zhengdan 958 being the slowest. The growth speed of grain dry matter dropped afterwards. The grain-filling rate of three materials fit the unimodal distribution; Hengzao 8 presented the highest peak value, and Zhengdan 958,the lowest. Grain size was positively correlated with water content and negatively correlated with the percentage of grain water, and the grain filling rate was positively correlated with water content. Regression analysis revealed that when the percentage of grain water of 3 materials reached 57%, their grain filling rates peaked. The Logistic model showed that the maximum grain filling rate(Gmax) and the mean filling rate(Gmean) were higher in Hengzao 8 whose active grain filling stage, early stage(T1), middle stage (T2)and late stage(T3) were shorter. The difference in 1 000-grain weight of three materials were responsible for the difference in the yields. The grain filling characteristics of Hengzao 8 is decisive for achieving early maturing and high yield.

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备注/Memo

备注/Memo:
收稿日期：2016-03-05 基金项目：国家玉米产业技术体系项目(nycytx-02)；河北省科技支撑计划项目（16226323D-X）；河北省农林科学院青年基金项目（A2015040101） 作者简介：岳海旺（1982-），男，河北晋州人，硕士，助理研究员，主要从事玉米育种研究。（E-mail）yanjiu1982@163.com 通讯作者：卜俊周，（E-mail）bujunzhou@126.com
更新日期/Last Update: 2016-11-22