文章基本信息

标题：Drought Stress Induces Flowering and Enhances Carbohydrate Accumulation in Averrhoa Carambola
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作者：Pingping WU ; Chubin WU ; Biyan ZHOU 等
期刊名称：Horticultural Plant Journal
印刷版ISSN：2468-0141
出版年度：2017
卷号：3
期号：2
页码：60-66
DOI：10.1016/j.hpj.2017.07.008
语种：English
出版社：Elsevier
摘要：Star fruit (Averrhoa carambola) is an important fruit tree in tropical and subtropical Asia. The tree blooms several times and fruits accordingly within one year. Controlling the flowering time and understanding the physiological mechanism of the induction of floral buds inA. carambolaare indispensable to the industry. In this study,A. carambolapotted trees were subjected to drought stress in a growth chamber. To avoid excessive drought stress and leaf abscission, trees were watered every 7 d and were sprayed with water every 2 d. The flowering rate was recorded, and the carbohydrate contents of the leaves, phloem, and xylem tissues were determined during the treatment and after re-watering. The results showed that drought stress increased the flowering rate in both drooping and water shoots, increased the relative conductivity, decreased the relative water content (RWC) of leaves. The total soluble sugar, sucrose, fructose, and glucose in leaves of the drooping shoots were increased. The starch contents in the xylem of both drooping and water shoots were also increased by the treatment. The results indicated that drought stress enhances carbohydrate accumulation inA. carambola.This study provides a potential way by water control to induce flowering without chemical inA. carambola.
关键词：star fruitAverrhoa caramboladrought stressfloweringcarbohydrate