Effect of the auxin on the fruit quality and yield of date palm Phoenix dactylifera L. Barhi and Sayer cultivars.

Abstract

The experiment was conducted at the horticultural station in Al-Mahaweel district, 20 km north of Babylon province, which is affiliated to the Horticultural Department / Ministry of Agriculture.To study the effect of three types of naphthalene acetic acid (NAA), Naphthalene acetic acid, Indole-3-butyric acid, and 2,4-D Dichlorophenoxyacetic acid, with three concentrations (0, 1, 2) ppm, on the two cultivars of palm trees, Al-Sayer and Al-Barhi. Three replicates for each treatment, in order to improve the quality of the fruits and increase the yield. The experiment conducted two factors (2 x 3 x 3) for the two cultivars according to the Randomized Complete Block Design (RCBD) , with a palm tree for each replicate.The results showed the 2,4-D excelled on the rest of the above-mentioned auxins in all the studied traits, and the concentration (2)) ppm excelled on the other concentrations in all the studied traits.The results also showed the Al-Barhi cultivar excelled in the characteristics of diameter, fruit weight and yield quantity, while the Al-Sayer cultivar was excelled in trait of fruit length, and the weight of the bunch did not have a significant effect between the two cultivars.The bi and triple interaction had a significant effect on most of the traits studied above.