潍县萝卜肉质根木质部与韧皮部叶绿素含量的相关分析

对不同来源的42份潍县萝卜肉质根进行叶绿素和可溶性固形物含量的测定，并分析各因素间的相关关系。结果表明：潍县萝卜肉质根木质部叶绿素a含量和叶绿素b含量呈极显著正相关（r=0.873），而韧皮部中两者却无相关性|韧皮部叶绿素a和总叶绿素含量都与木质部叶绿素a、叶绿素b及总叶绿素含量呈极显著正相关，在无损检测时可以通过韧皮部的色素信息粗略估计肉色的深浅。韧皮部总叶绿素含量及叶绿素b含量与木质部可溶性固形物含量呈显著正相关，即皮色深绿的萝卜一般甜度较高。

Correlative Analysis of Chlorophyll Content between Xylem and Phloem in Weixian Radish Fleshy Roots

Experiments were carried out to detect the contents of chlorophyll and soluble solids in Weixian radish(Raphanus sativus L.)fleshy roots from 42 ascensions of different resources,and correlations between various factors were analyzed.The results showed that the contents of chlorophyll a in xylem of fleshy roots displayed distinct positive correlations with chlorophyll b,r=0.873,while no correlations was found in phloem of radish fleshy root.The contents of chlorophyll a and total chlorophyll in phloem displayed distinct positive correlations with contents of chlorophyll a,chlorophyll b and total chlorophyll in xylem.So we can roughly estimate the color depth and limit by detecting pigment information in phloem.The contents of total chlorophyll and chlorophyll b in phloem show significant positive correlations with the contents of soluble solids in xylem.That means radish with dark green color peel usually has higher saccharinity.