摘要
运用灰色关联系统理论,分析了11个不同海拔高度下玛咖的鲜根重与主要农艺性状及农艺性状间的关联性。从鲜根重与主要农艺性状间的关联序可以看出,与鲜根重关系密切的农艺性状依次是膨大根粗、茎粗、叶宽、叶柄长、覆盖面积、叶长、功能叶小叶数、根数、总叶数、膨大根长、主根长、茎长。通过关联度分析表明:不同性状间存在不同程度的关联,从与鲜根重关联密切的前3个性状来看,膨大根粗与茎粗、叶柄长、叶长和叶宽关联密切;茎粗与膨大根粗、总叶数、叶柄长、茎长、叶宽和叶长关联密切;叶宽与覆盖面积、主根长、膨大根粗、叶长和膨大根长关联密切。对于膨大根粗和茎粗,叶柄长、叶长和叶宽是主导因素,对于叶宽,覆盖面积、主根长和膨大根粗是主导因素。
By using grey system theory, we analyzed the grey correlation degrees among the fresh root weight and main agro- nomic characters of Lepidium meyenii at 11 different altitudes. The grey correlation degrees between the fresh root weight and the main agronomic characters showed the following order： expanded root diameter〉 stem diameter〉 leaf width〉 petiole length〉 coverage area〉 leaf length〉 number of functional leaflets〉 root number〉 total leaf number〉 expanded root length〉 main root length〉 stem length. The results of grey correlation degree analysis indicated that different degrees of grey correlations existed among various agro- nomic characters. The expanded root diameter had close relationships with stem diameter, petiole length, leaf length and leaf width; the stem diameter had close relationships with expanded root diameter, total leaf number, petiole length, stem length, leaf width and leaf length; the leaf width was closely correlated to coverage area, main root length, expanded root diameter, leaf length and ex- panded root length. Therefore, the petiole length, leaf length and leaf width were the key factors for the expanded root diameter and stem diameter; the coverage area, main root length and expanded root diameter were the dominant factors for the leaf width.
出处
《江西农业学报》
CAS
2015年第7期48-51,共4页
Acta Agriculturae Jiangxi
基金
中央财政农业综合开发存量资金土地治理项目"2014年玉龙县宝山乡玛咖标准化种植省级示范项目"(丽财农综〔2014〕10号)
关键词
灰色关联度分析
玛咖
根重
农艺性状
Grey correlation degree analysis
Lepidium meyenii
Root weight
Agronomic characters
