不同砧木对克瑞森葡萄果实可溶性糖含量的影响

【目的】研究不同砧木嫁接的克瑞森葡萄果实中可溶性糖含量和组分特性与差异,分析不同砧木对克瑞森果实糖分的影响,为葡萄优良砧木的筛选提供理论依据。【方法】田间监测不同砧木嫁接的克瑞森葡萄果实的生长发育,利用高效液相色谱法,测定成熟期果实中可溶性糖组分和含量,进行比较分析。【结果】7个克瑞森砧木嫁接苗中,砧木101-14MG嫁接的克瑞森葡萄果实的果形指数最大,比其自根苗大12.88%,果实成熟也最早;砧木SO4嫁接的克瑞森葡萄果实的单粒重最大,达3.21g。成熟期不同砧穗组合果实的可溶性糖主要由果糖、葡萄糖和蔗糖组成,其中葡萄糖和果糖含量均较高,变化幅度较大,葡萄糖略高于果糖含量,蔗糖含量相对稳定。7个克瑞森砧木嫁接苗中,砧木101-14MG嫁接的克瑞森葡萄果实葡萄糖和果糖的含量均最高,分别比克瑞森自根苗高14.68%和15.49%,其次是砧木SO4、5BB和5C;砧木5C嫁接的克瑞森葡萄果实蔗糖含量最高,比其自根苗高12.75%。砧木101-14MG、SO4和5BB嫁接的克瑞森葡萄可溶性总糖明显高于其余5个砧木嫁接苗,分别比克瑞森自根苗高14.67%、10.20%和8.22%,其中以101-14MG嫁接的克瑞森葡萄可溶性总糖最高,188-08嫁接的克瑞森果实中葡萄糖、果糖、蔗糖和可溶性总糖含量均为最低。【结论】砧木101-14MG、SO4和5C嫁接利于克瑞森无核果实的生长和可溶性糖的积累,是促进克瑞森葡萄成熟的优良砧木。

Effects of Different Rootstocks on Soluble Sugar Content of Crimson Grape Fruit

【Objective】 This project aims to compare and analyze the characteristics and differences of soluble sugar content and components in the grape fruit grafted with different rootstocks, and discuss the effects of different rootstocks on the sugar content in the grape fruit in the hope of providing a theoretical basis for the selection of good rootstocks of grape.【Method】The growth and development of crimson grape fruit grafted with different rootstocks were monitored in the field. The soluble sugar components and contents in the fruit at maturity were determined by high performance liquid chromatography (HPLC), and the results were compared and analyzed.【Result】Among the 7 grafted seedlings of crimson rootstock, the fruit shape index of crimson grape grafted by rootstock 101-14MG was the largest, which was 12.88% larger than its own root seedling, and the fruit matured the earliest. The single weight of the crimson grape fruit grafted with rootstock SO4 was the largest, up to 3.21 g. Different anvil ear combination in mature fruit soluble sugar was mainly composed of fructose, glucose and sucrose. The contents of glucose and fructose were higher, with large range of changes; The content of glucose was slightly higher than that of fructose, and the glucose sucrose content was relatively stable. The content of glucose and fructose in the crimson fruit grafted with 101-14MG was the highest, which was 14.68% and 15.49% higher than that of crimson self-rootstock respectively, followed by the rootstocks SO4, 5BB and 5C. The highest sucrose content was found in the grape fruits grafted with 5C rootstock, which was 12.75% higher than its self-rooted seedlings. The total soluble sugar of the grape grafted with 101-14MG SO4 and 5BB was significantly higher than that of the other 5 rootstocks, which was 14.67%, 10.20% and 8.22% higher than that of the crimson self-root seedling, respectively. Among them, the total soluble sugar of crimson grape grafted with 101-14MG was the highest, and glucose, fructose, sucrose and soluble sugar in the grape fruit grafted with 188-08 were the lowest.【Conclusion】Grafting of rootstock 101-14MG, SO4 and 5C is beneficial to the growth of crimson seedless fruits and the accumulation of soluble sugar, and these rootstocks are an excellent rootstocks which can help to promote the ripening of crimson grapes.