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小麦品种‘宁麦26’的产量及其构成因素分析 预览

Analysis on the yield and yield components of wheat variety ‘Ningmai 26’
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摘要 利用2012—2015年江苏省淮南片小麦区域试验和生产试验以及2013—2016年国家冬小麦长江中下游组区域试验和生产试验资料,对小麦新品种‘宁麦26’的产量及其构成因素进行分析,以期为该品种的合理利用提供依据。结果表明:‘宁麦26’平均穗数476.6万hm^2,穗粒数36.7粒,千粒重41.9g,产量6636.9kg/hm^2。相关分析表明,穗数、穗粒数和千粒重与产量呈显著或极显著正相关,相关系数分别为0.5928^**、0.3296^**和0.2497^*.产量(Y)与穗数(X1)、穗粒数(X2)、千粒重(X3)的多元回归方程为:Y=-7583.99+11.76X1+116.44X2+103.94X3。通径分析表明,穗数对产量的作用最大(Py=0.6426),其次是穗粒数(Py=0.4309),千粒重的作用相对较小(Py=0.3572)。‘宁麦26’的高产栽培技术应在适宜群体的基础上提高成穗率,主攻穗粒数,同时兼顾千粒重。 Based on the data of wheat regional test and production test in the south area of Jiangsu Province in 2012-2015 and national winter wheat regional test and production test in the mid-lower reaches of the Yangtze River in 2013-2016,the yield and yield components of new wheat variety ‘Ningmai 26’ were analyzed in order to provide basis for rational utilization of the variety.The results showed that the average panicle number,grain number per panicle,1 000-grain weight and yield of ‘Ningmai 26’ were 476.6×10^ 4hm^2,36.7,41.9 g and 6 636.9 kg/hm^2, respectively.The correlation analysis showed that the panicle number,grain number per panicle and 1 000-grain weight were significantly or extremely significantly positively correlated with the yield,with correlation coefficients of 0.5928^***,0.3296^** and 0.2497^*,respectively.The multiple regression equation of the yield( Y ) and the panicle number( X 1 ),grain number per panicle( X 2 ) and 1 000-grain weight( X 3 ) was Y =-7 583.99+11.76 X 1 +116.44 X 2 +103.94 X 3 .Path analysis showed that the panicle number had the greatest effect on the yield( Py =0.6426),followed by the grain number per panicle( Py =0.4309),and the 1 000-grain weight had a relatively small effect( Py =0.3572).The high yield cultivation techniques of ‘Ningmai 26’ should improve the productive tiller percentage and grain number per panicle on the basis of suitable population,and give consideration to the 1 000-grain weight at the same time.
作者 姚金保 张鹏 马鸿翔 张瑜 余桂红 杨学明 周淼平 张平平 YAO Jin-bao;ZHANG Peng;MA Hong-xiang;ZHANG Yu;YU Gui-hong;YANG Xue-ming;ZHOU Miao-ping;ZHANG Ping-ping(Institute of Food Crops,Jiangsu Academy of Agricultural Sciences Jiangsu Provincial Key Laboratory forAgrobiology,Nanjing 210014,China;Jiangsu Co-Innovation Center for Modern Production Technology ofGrain Crops,Yangzhou University,Yangzhou 225009,China)
出处 《上海农业学报》 2019年第2期7-11,共5页 Acta Agriculturae Shanghai
基金 农业部现代农业产业技术体系(CARS-03) 国家重点研发计划(2017YFD0100800) 江苏省科研院校农技推广(TG17013) 江苏省农业重大新品种创制(PZCZ201705).
关键词 小麦 产量 产量构成因素 相关分析 通径分析 Wheat Yield Yield components Correlation analysis Path analysis
作者简介 姚金保(1962-),男,硕士,研究员,主要从事小麦遗传育种研究。E-mail:yaojb@jaas.ac.cn.
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