蓖麻主茎叶片着生节位与主茎及叶片性状指标的回归分析  

Regression analysis of node position of main stem leaf and main stem and leaf traits of castor

作　　者：金方伦 金玲 罗朝斌 詹永发[1] 吴康云[1] JIN Fang-lun;JIN Ling;LUO Chao-bin;ZHAN Yong-fa;WU Kang-yun(Sericulture Research Institute,Guizhou Academy of Agricultural,Guiyang 550006,China)

机构地区：[1]贵州省农业科学院蚕业研究所,贵阳550006

出　　处：《湖北农业科学》2021年第23期117-122,共6页Hubei Agricultural Sciences

基　　金：贵州高原桑蚕多批次高效生产技术示范与服务(黔科合服企(2019)4008)。

摘　　要：2018—2020年连续3年以蓖麻品种(Ricinus communis L.)滇蓖麻2号为试材,对蓖麻主茎叶片节位与其节间性状、叶片性状和质量性状等指标进行回归分析,为蓖麻合理采叶提供理论依据。结果显示,①相关系数分析,蓖麻主茎叶片不同着生节位与主茎节位长度、叶片长度、叶片宽度、叶柄长度、叶柄宽横径、叶基腺长度、叶片质量和叶片净质量之间均呈极显著正相关,与主茎节间厚横径和叶柄厚横径之间呈显著正相关,与每千克叶片数量之间呈极显著负相关,与其他指标之间呈不显著正相关。②方差分析,蓖麻主茎叶片着生节位与主茎节位长度、叶片长度、叶片宽度和叶柄长度等指标之间均存在极显著差异,与主茎节间厚横径、叶基腺长度和叶片净质量之间均存在显著差异,与其他指标之间差异不显著。③蓖麻主茎叶片着生节位与主茎性状、叶片性状和质量性状之间拟合的回归方程都符合二次曲线规律;由数据拟合得到,主茎叶片着生最好节位为9.20节时,拟合方程中叶片净质量达89.15 g。蓖麻主茎上着生节位对主茎叶片质量的影响表现为,在一定节位范围内,叶片在蓖麻主茎上着生节位越高,叶片长度、叶片宽度、叶柄长度、叶柄宽横径、叶柄基腺长度、叶片质量和叶片净质量等指标均极显著增加,到第9节位的叶片净质量最大,为采叶时合理采叶提供参考。In order to provide theoretical basis for rational leaf picking of castor(Ricinus communis L.),the regression analysis of leaf node position of main stem and its internode characters,leaf characters and quality characters were conducted from 2018 to 2020 with Dianbima No.2 as experimental material.The results showed that,①Correlation coefficient analysis showed that there was a very significant positive correlation between different node positions and node length,leaf length,leaf width,petiole length,petiole width and transverse diameter,petiole basal gland length,leaf weight and net leaf weight of castor,and there was a significantly positively correlated with the thick transverse diameter of internode and petiole,there was a significant negative correlation with the number of leaves per kg,and no significant positive correlation with other indicators.②Analysis of variance showed that there were significant differences between the leaf node of main stem and the node length of main stem,the length of the leaf,the width of the leaf and the length of the petiole.There were significant differences between the leaf node of main stem and the thickness and diameter of the main stem node,the petiole basal gland length and the net quality of the leaf.There was no significant difference between the leaf node of main stem and the other indicators.③The regression equation fitting between the node position of main stem and main stem characters,leaf characters and quality characters of castor was conformed to the law of quadratic curve.According to the data fitting,when the best node position of main stem leaves is 9.20,the net weight of leaves in the fitting equation reaches 89.15 g at this node position.The effect of the node position on the main stem of castor on the leaf quality of the main stem was as follows,within a certain range of node position,the higher the node position of the leaf on the main stem of castor was,the more significantly the indexes such as leaf length,leaf width,petiole length,petiole width an

关 键 词：蓖麻(Ricinus communis L.) 叶片 节位 指标 回归分析 

分 类 号：S565.6[农业科学—作物学]