余俊;赵玉华;白描;杨国顺;

• 1:湖南农业大学园艺园林学院
• 2:湖南省葡萄工程技术研究中心

摘要(Abstract)：

【目的】通过研究不同钙处理对葡萄花青素合成及品质的影响,确定适宜的喷钙时期、浓度、部位,为葡萄的优质高产提供理论依据。【方法】以6 a(年)生‘美人指’为试验材料,研究了不同钙处理水平(0、1、3、5、8 g·L~(-1))、施肥方式(叶果喷施和浸果)及时期(第1次膨大期和第2次膨大期)对葡萄果实品质和花青素含量的影响。【结果】钙处理可明显提高果实的单粒质量、可溶性固形物及花青素含量,并降低果实硬度和酸度,果实品质和花青素含量随着钙质量浓度的增加而提高,在5 g·L~(-1)时效果最好,同时还发现钙处理效果在葡萄第2次膨大期优于第1次膨大期,浸果处理优于叶果喷施处理。第2次膨大期5 g·L~(-1)钙溶液浸果处理的花青素含量为820.23 nmol·g~(-1)(约为对照的5.72倍)、可溶性固形物含量(ω)为16.23%(约为对照的1.28倍)、固酸比为63.40(约为对照的1.67倍),而总酸含量(ω)显著低于其他处理,为0.26%(约为对照的0.76倍)。【结论】在葡萄第2次膨大期采用5 g·L~(-1)钙溶液浸果处理,对于提高葡萄品质和果实花青素含量最为有利。

关键词(KeyWords)： 葡萄;钙;果实品质;花青素

Abstract:

Keywords:

基金项目(Foundation): 国家葡萄产业技术体系(CARS-29-ZP-9);; 湖南省重点研发项目(2013FJJ6102)

作者(Author): 余俊;赵玉华;白描;杨国顺;

Email:

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