冯立娟;尹燕雷;杨雪梅;武冲;孙立平;

• 1:山东省果树研究所
• 2:泰山医学院化工学院

摘要(Abstract)：

【目的】研究不同石榴品种发育期果实品质和叶片指标的变化趋势及相关关系,为有效调控果实品质提供理论依据。【方法】以石榴品种‘泰山红’和‘泰山三白甜’为试材,利用滴定法和紫外分光光度法等对其发育期果实品质和叶片指标进行测定。【结果】2个品种发育期果实单果质量、可溶性固形物含量、固酸比和可溶性糖含量显著增加,可滴定酸含量显著降低。两个品种果实中可滴定酸含量、固酸比和可溶性糖含量差异显著(P<0.05)。两个品种维生素C含量随果实发育均逐渐增加,‘泰山红’发育后期(9月15日后)维生素C含量迅速升高,高于‘泰山三白甜’,与其差异极显著(P<0.01)。‘泰山红’发育期花青苷含量逐渐升高,9月5日后进入迅速增长期,一直高于‘泰山三白甜’,后者花青苷含量变化幅度较小。两个品种总黄酮含量均在幼果期(7月15日)和成熟期(10月5日)出现峰值。两个品种发育期叶片中叶绿素a、叶绿素b、可溶性糖、花青苷和总黄酮含量整体上逐渐降低,类胡萝卜素含量发育后期逐渐升高。相关性分析表明,两个品种果实中可溶性糖与花青苷呈极显著正相关。叶片中叶绿素a、叶绿素b与花青苷、总黄酮呈显著正相关,花青苷与总黄酮呈极显著正相关。叶片花青苷与果实单果质量、可溶性固形物含量、可溶性糖含量、固酸比呈显著负相关,叶片总黄酮含量与果实可溶性糖含量呈显著负相关。【结论】不同石榴品种发育期果实品质和叶片指标差异显著。可溶性糖含量增加有利于果实中花青苷的合成。叶绿素含量增加有利于叶片中花青苷和黄酮类化合物的形成。不同石榴品种果实品质和叶片指标相关程度差异显著。

关键词(KeyWords)： 石榴;发育期;果实品质;叶片指标;相关关系

Abstract:

Keywords:

基金项目(Foundation): 山东省自然科学基金(ZR2014YL022,ZR2012CL01);; 山东省果树研究所所长基金(2013KY04)

作者(Authors): 冯立娟;尹燕雷;杨雪梅;武冲;孙立平;

DOI: 10.13925/j.cnki.gsxb.20150070

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