本文主要研究内容
作者杨国浪,张小强,徐长虹,拉巴仓决(2019)在《油菜年河18号经济性状与产量的相关性分析》一文中研究指出:利用2017年示范推广的数据资料,采用相关性、回归和通径分析方法,对年河18号的经济性状开展研究。结果表明,在667 m2产量超过150 kg的16个点次中,年河18号的667 m2平均成株数2.264万,单株有效角果数149.8个,每角粒数18.3粒,千粒重4.311 g,单株有效角果数的变异系数为18.2%。变异分析表明,成株数的变异系数为17.4%,每角粒数的变异系数为11.0%,千粒重的变异系数为2.3%;相关分析表明,单株有效角果数、每角粒数与产量间呈极显著正相关(r=0.790**,r=0.766**),千粒重与产量间呈正相关但不显著(r=0.294),成株数与产量间呈极显著负相关(r=-0.712**);偏相关分析表明,年河18号经济性状与产量间相关性无论正负均不显著,各经济性状间除成株数与单株有效角果数呈显著负相关(r=-0.623*)外,其余相互间相关性均不显著;多元回归分析表明,成株数(X1)、单株有效角果数(X2)、每角粒数(X3)和千粒重(X4)与产量(Y)间的线性回归具有显著性关系,建立回归方程为Y=-61.279 4-7.770 6X1+0.299 1X2+2.680 9X3+37.029 9X4;通径分析表明,单株有效角果数对年河18号产量贡献(正向效应)的直接作用最大,每角粒数紧随其后,千粒重居末位,成株数对年河18号产量贡献的直接作用为负值,每角粒数通过单株有效角果数对产量的间接贡献最大(正向效应),单株有效角果数通过每荚粒数对产量的间接贡献居第二位(正向效应),其余正向间接作用等相对较小或不明显。综合分析表明,年河18号的高产高效栽培模式应建立在合理密植群体,提高单株有效角果数的基础上,通过增加每角粒数和稳定千粒重来提高产量。
Abstract
li yong 2017nian shi fan tui an de shu ju zi liao ,cai yong xiang guan xing 、hui gui he tong jing fen xi fang fa ,dui nian he 18hao de jing ji xing zhuang kai zhan yan jiu 。jie guo biao ming ,zai 667 m2chan liang chao guo 150 kgde 16ge dian ci zhong ,nian he 18hao de 667 m2ping jun cheng zhu shu 2.264mo ,chan zhu you xiao jiao guo shu 149.8ge ,mei jiao li shu 18.3li ,qian li chong 4.311 g,chan zhu you xiao jiao guo shu de bian yi ji shu wei 18.2%。bian yi fen xi biao ming ,cheng zhu shu de bian yi ji shu wei 17.4%,mei jiao li shu de bian yi ji shu wei 11.0%,qian li chong de bian yi ji shu wei 2.3%;xiang guan fen xi biao ming ,chan zhu you xiao jiao guo shu 、mei jiao li shu yu chan liang jian cheng ji xian zhe zheng xiang guan (r=0.790**,r=0.766**),qian li chong yu chan liang jian cheng zheng xiang guan dan bu xian zhe (r=0.294),cheng zhu shu yu chan liang jian cheng ji xian zhe fu xiang guan (r=-0.712**);pian xiang guan fen xi biao ming ,nian he 18hao jing ji xing zhuang yu chan liang jian xiang guan xing mo lun zheng fu jun bu xian zhe ,ge jing ji xing zhuang jian chu cheng zhu shu yu chan zhu you xiao jiao guo shu cheng xian zhe fu xiang guan (r=-0.623*)wai ,ji yu xiang hu jian xiang guan xing jun bu xian zhe ;duo yuan hui gui fen xi biao ming ,cheng zhu shu (X1)、chan zhu you xiao jiao guo shu (X2)、mei jiao li shu (X3)he qian li chong (X4)yu chan liang (Y)jian de xian xing hui gui ju you xian zhe xing guan ji ,jian li hui gui fang cheng wei Y=-61.279 4-7.770 6X1+0.299 1X2+2.680 9X3+37.029 9X4;tong jing fen xi biao ming ,chan zhu you xiao jiao guo shu dui nian he 18hao chan liang gong suo (zheng xiang xiao ying )de zhi jie zuo yong zui da ,mei jiao li shu jin sui ji hou ,qian li chong ju mo wei ,cheng zhu shu dui nian he 18hao chan liang gong suo de zhi jie zuo yong wei fu zhi ,mei jiao li shu tong guo chan zhu you xiao jiao guo shu dui chan liang de jian jie gong suo zui da (zheng xiang xiao ying ),chan zhu you xiao jiao guo shu tong guo mei jia li shu dui chan liang de jian jie gong suo ju di er wei (zheng xiang xiao ying ),ji yu zheng xiang jian jie zuo yong deng xiang dui jiao xiao huo bu ming xian 。zeng ge fen xi biao ming ,nian he 18hao de gao chan gao xiao zai pei mo shi ying jian li zai ge li mi zhi qun ti ,di gao chan zhu you xiao jiao guo shu de ji chu shang ,tong guo zeng jia mei jiao li shu he wen ding qian li chong lai di gao chan liang 。
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论文作者分别是来自浙江农业科学的杨国浪,张小强,徐长虹,拉巴仓决,发表于刊物浙江农业科学2019年02期论文,是一篇关于年河号论文,经济性状论文,相关性论文,油菜论文,浙江农业科学2019年02期论文的文章。本文可供学术参考使用,各位学者可以免费参考阅读下载,文章观点不代表本站观点,资料来自浙江农业科学2019年02期论文网站,若本站收录的文献无意侵犯了您的著作版权,请联系我们删除。
标签:年河号论文; 经济性状论文; 相关性论文; 油菜论文; 浙江农业科学2019年02期论文;