喷施蔗糖对蓝莓叶片和果实中可溶性糖含量变化的影响

Effects of Spraying Sucrose on Soluble Sugar Content in Fruits and Leaves in Blueberry

[目的]研究喷施蔗糖对蓝莓叶片和果实中可溶性糖含量变化的影响。[方法]以不同类型的2个蓝莓品种为试材,分析了喷施不同浓度(0.1%、0.5%和1.0%)的蔗糖溶液对蓝莓果实发育期叶片和果实中可溶性糖含量、组成的影响,并进行了相关性分析。[结果]在整个果实发育过程中(蓝丰:5月初～7月中旬;粉蓝:5月底～8月中旬),2品种叶片中可溶性糖总含量逐渐增加,但各个可溶性糖含量变化规律有所不同;2个品种果实成熟时期主要是积累葡萄糖和果糖为主,蔗糖含量很少,葡萄糖和果糖含量相当,并且随着果实的发育,各处理都可以不同程度地增加蓝莓果实的可溶性糖含量,其中喷施0.5%的蔗糖溶液增加最多;通过对各个处理叶片和果实可溶性糖含量的相关性分析可以看出,叶片和果实中可溶性糖含量显著相关。[结论]叶片喷施0.5%浓度的蔗糖对增加蓝莓果实中的糖度提高最多。

[Objective] Study the effects of spraying sucrose on soluble sugar content in fruits and leaves in blueberry.[Method] Two blueberry varieties were used as materials.Seasonal changes of soluble sugar contents in fruits and leaves and their relationship were studied,which were spraied different sucrose（0.1%,0.5% and 1.0%）.[Result] Two varieties of the total soluble sugar content in leaves gradually increased during the whole period of fruit development（Bluecrop： early May to mid-July;Powderblue： the end of May to mid-August）,however,change of soluble sugar content of each was different;the content of glucose and fructose were mainly accumulated in mellow fruit kept a high level,sucrose content was at a low lever,the process can be different increased levels of soluble sugar content of blueberry fruit during the whole period of fruit development,of which 0.5% sucrose solution spraying increased the most;leaves and fruit soluble sugar content were significantly related through the relationship between soluble sugar content in leaves and fruit.[Conclusion] 0.5% sucrose solution spraying increased the sugar content in blueberry fruit the most.