اثر توفوردي و سولفات پتاسيم بر ويژگي هاي كمي و كيفي ميوه پرتقال نافي

The effect of 2,4-D and K2S04 on quantitative and qualitative characteristics of sweet orange cv.Navel fruits

Navel oranges are cultivated in many countries including Iran and in Comparable to With other cultivars of citrus have an especial importance in THE world The quality and quantity of this Product in fluenced by many factors. This research was CARRIED OUT to investigate the effect of 2,4-0 and K,SO, and their interaction on quantitative and qualitative characteristics of sweet orange cv. Navel fruits afactorial enperiment as a randomized complete block de sign (RCBD) with 9 treatments and 4 replications was Performed. 2,4-0 was sprayed at 0, 10 and 20 mg rʹ and K,SO, at 0, I and 2 percent when diameter of fruits was 15 mm in the growing season of 2006. ResultS has shown that 2,4-0 at 20 mg rʹ plus 2% potassium significantly increased weight and total acid of fruit and at 10 mg rʹ with different concentration of potassium increased fruit juice significantly. Potassium had a Significantly effect on qualitative characteristics of fruits including total soluble solids, acidity and ascorbic acid