首页 | 本学科首页   官方微博 | 高级检索  
     检索      

1970s~2000s玉米主栽品种灌浆与脱水速率研究
引用本文:刘艳秋,李明顺,李新海,雍洪军,颜娜,周志强,张晓星,夏仁培,张德贵,郝转芳,翁建峰,白丽,史振声,张世煌.1970s~2000s玉米主栽品种灌浆与脱水速率研究[J].玉米科学,2015,23(1):85-91.
作者姓名:刘艳秋  李明顺  李新海  雍洪军  颜娜  周志强  张晓星  夏仁培  张德贵  郝转芳  翁建峰  白丽  史振声  张世煌
作者单位:沈阳农业大学特种玉米研究所, 沈阳 110161;中国农业科学院作物科学研究所, 北京 100081;中国农业科学院作物科学研究所, 北京 100081;中国农业科学院作物科学研究所, 北京 100081;中国农业科学院作物科学研究所, 北京 100081;中国农业科学院作物科学研究所, 北京 100081;中国农业科学院作物科学研究所, 北京 100081;中国农业科学院作物科学研究所, 北京 100081;中国农业科学院作物科学研究所, 北京 100081;中国农业科学院作物科学研究所, 北京 100081;中国农业科学院作物科学研究所, 北京 100081;中国农业科学院作物科学研究所, 北京 100081;沈阳农业大学特种玉米研究所, 沈阳 110161;中国农业科学院作物科学研究所, 北京 100081
基金项目:国家现代农业产业技术体系建设专项(CARS-02-01)、中央级公益性科研院所基本科研业务费专项
摘    要:1970s推广玉米单交种,标志着我国利用玉米杂种优势育种从选育双交种转向选育单交种为主的阶段。不同年代玉米单交种的灌浆与脱水速率随着年代的更替所呈现的变化规律尚未引起关注。试验于2013年在中国农业科学院试验基地进行,以1970s~2000s大面积推广的14份单交种为试验材料,对不同年代玉米单交种各个时期的子粒、苞叶、穗轴含水量进行分析,计算和分析子粒、穗轴和苞叶的脱水速率及子粒灌浆速率。结果表明,2000年以后审定的新品种子粒灌浆速率快于以前的老品种;新品种的子粒百粒干重高于老品种;新品种的穗轴、苞叶和子粒的含水量均高于老品种。穗轴脱水速率则老品种明显快于新品种;子粒、苞叶脱水速率在不同年代品种之间并无明显差异。

关 键 词:玉米  年代  灌浆速率  脱水速率
收稿时间:2014/12/10 0:00:00

Preliminary Study on Grain Filling and Dehydration Rate of Maize Hybrids Used Predominantly in 1970s-2000s
LIU Yan-qiu,LI Ming-shun,LI Xin-hai,YONG Hong-jun,YAN N,ZHOU Zhi-qiang,ZHANG Xiao-xing,XIA Ren-pei,ZHANG De-gui,HAO Zhuan-fang,WENG Jian-feng,BAI Li,SHI Zhen-sheng and ZHANG Shi-huang.Preliminary Study on Grain Filling and Dehydration Rate of Maize Hybrids Used Predominantly in 1970s-2000s[J].Journal of Maize Sciences,2015,23(1):85-91.
Authors:LIU Yan-qiu  LI Ming-shun  LI Xin-hai  YONG Hong-jun  YAN N  ZHOU Zhi-qiang  ZHANG Xiao-xing  XIA Ren-pei  ZHANG De-gui  HAO Zhuan-fang  WENG Jian-feng  BAI Li  SHI Zhen-sheng and ZHANG Shi-huang
Institution:Institute of Specialty Corn, Shenyang Agricultural University, Shenyang 110161;Institute of Corp Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China;Institute of Corp Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China;Institute of Corp Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China;Institute of Corp Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China;Institute of Corp Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China;Institute of Corp Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China;Institute of Corp Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China;Institute of Corp Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China;Institute of Corp Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China;Institute of Corp Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China;Institute of Corp Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China;Institute of Specialty Corn, Shenyang Agricultural University, Shenyang 110161;Institute of Corp Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China
Abstract:With the release of maize single-cross hybrids in 1970s, it marks the transition of hybrid maize breeding from double-crosses to single-crosses in China. The objective of this study was to analyze the variation patterns of grain filling and dehydration rates among different maize single-cross hybrids with the decades when the hybrids released. Fourteen maize hybrids used predominantly in 4 decades, released from 1970s-2000s, were directly investigated for grain moisture, husk moisture and cob moisture in the Beijing experiment station of Chinese Academy of Agricultural Sciences, in 2013. Grain filling rate and dehydration rate, cob and husk were further calculated. The results showed that the modern hybrids performed higher moisture in cob, husk and grain than older hybrids. The same result was found for the trait of 100-grain weight. Modern hybrids showed a faster grain filling rate, but a slower cob dehydration rate than older hybrids. There was no significant variation identified in grain and husk dehydration rates.
Keywords:Maize  Decade  Grain Filling rate  Dehydration rate
本文献已被 CNKI 等数据库收录!
点击此处可从《玉米科学》浏览原始摘要信息
点击此处可从《玉米科学》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号