Effect of Paclobutrazol on inducing off-season flowering and fruit poducts of wax apple (Eugenia javanica) cv. Taiwan

บทคัดย่อ

Three-year-old wax apple trees cv. Taiwan were treated with paclobutrazol by drenching at the rate of0, 1, 2 and 4 g.ai/tree or by spraying at 0, 500, 1,000 and 2,000 mg/L 40 and 90 days after pruning. The experimentwas conducted at a private orchard in Varincharam district, Ubon Ratchathani province during the period from July2002 to October 2003. The results showed that all the treated trees flowered, while the control trees did not flowerat that time. Drenching gave better results than spraying in the first flower flush and the response increased withthe concentration of paclobutrazol in both drench and spray treatments. The quality of harvested fruits such as fruitsize, fruit weight, total soluble solid, titratable acidity, and the ratio of TSS : TA did not differ significantly amongthe treatments.