三月红荔枝果皮钾钙镁含量变化与着色的关系

Studies on the Relationship Between the Changes in the Content of K,Ca and Mg in Pericarp of Sanyuehong Litich and the Pericarp's Coloration

以三月红荔枝(Litchi chinensis Sonn.‘Sanyuehong’)果皮为材料,探讨果皮K,Ca和Mg含量动态变化与着色的关系。结果表明:在果皮着色发育过程中,叶绿素含量和h值呈显著下降趋势,花色素苷含量和a值呈显著上升趋势;全K和水溶性K含量总体上均呈下降趋势,全Ca和水溶性Mg含量总体上呈上升趋势,全Mg含量在4月16日前总体上上升,水溶性Ca含量则无显著变化。果皮花色素苷含量与果皮全K、全Ca、水溶性K和水溶性Mg等含量分别呈负、正、负和正相关一元指数函数回归关系。

In order to study the relationship between the changes in the contents of K and Ca and Mg in pericarp and the pericarp＇s coloring of Sanyuehong litich（ Litchi chinensis Sonn. ‘Sanyuehong＇）,a study based on the pericarp of Sanyuehong litich had finished. The results in the course of the development of the pericarp＇s reddening were the following. The contents of chlorophyll and the values of h decreased significantly,while the contents of anthocyanin and the values of a increased significantly. The contents of the total K and the water-soluble K decreased generally. The contents of the total Ca and the water-soluble Mg rose generally. The content of the total Mg rose generally before 16th April. The content of the water-soluble Ca changed insignificantly all the time. The exponential regression equations of the content of anthocyanin to the contents of the total K,the total Ca,the water-soluble K and the water-soluble Mg were all significant,and the exponential correlations were respectively negative,positive,negative and positive.