河南省小麦新品种漯麦906和昌麦18的高产特点  

High-yield Characteristics of New Wheat Varieties Luomai 906 and Changmai 18 in Henan Province

作　　者：薛志伟[1] 杨春玲[1] 关立[1] XUE Zhi-wei;YANG Chun-ling;GUAN Li(Anyang Academy of Agricultural Sciences,Anyang 455000,China)

机构地区：[1]安阳市农业科学院

出　　处：《河北农业科学》2019年第3期53-56,95,共5页Journal of Hebei Agricultural Sciences

基　　金：国家现代农业产业技术体系小麦专项资金(CARS-3)

摘　　要：为了明确小麦新品种的高产特点,充分挖掘其增产潜力,以周麦18为对照,分析了漯麦906和昌麦18的群体性状以及产量构成等特点。结果表明:与周麦18相比,漯麦906和昌麦18的总茎数在越冬期和起身期无显著差异,拔节期明显较低;抽穗前叶面积指数增速较慢,抽穗后降幅较小,生育期内叶面积指数变化较为平稳,有利于光合产物的积累和转移;穗粒数多,千粒重大,弥补了总穗数显著较低的不足;产量显著提高,增产幅度分别达到了4.26%和4.18%。漯麦906和昌麦18高产的主要特点是主茎穗比例高,花后叶面积指数降幅小,穗粒数多,千粒重大。In order to clarify the high-yield characteristics of new wheat varieties,fully excavate the yield potential,Zhoumai 18 was used as a variety control,the population traits and yield components of Luomai 906 and Changmai 18 were analyzed.The results showed that compared with Zhoumai 18,there was no significant difference in the total stem number of Luomai 906 and Changmai 18 atoverwintering and erecting stages,while the total stem number of the two varieties was obviously lower at the jointing stage.The leaf area index(LAI)increased slowly before heading,and the decline was smaller after heading.The LAI changed smoothly during the growth period,which was beneficial to the accumulation and transfer of photosynthetic materials.The grain numbers and 1 000-grain weight were higher,which made up the shortage of significantly lower total spike number.The yield of Luomai 906 and Changmai 18 increased significantly,and the increasing rate was 4.26%and 4.18%,respectively.The high-yield characteristics of Luomai 906 and Changmai 18 were higher proportion of main stem spike,small decline of LAI after flowering,more grains per spike and higher 1 000-grain weight.

关 键 词：漯麦906 昌麦18 群体结构 叶面积指数 产量 

分 类 号：S512.11[农业科学—作物学]