El-Dissoky R.A. and A.E.S. Abdel-Kadar ( 2013). Effect of Boron as A Foliar Application on Some Potatoes Cultivars Under Egyptian Alluvial Soil Conditions.Research Journal of Agriculture and Biological Sciences, 9(5): 232-240, 2013 ISSN 1816-1561
Abstract: Two field experiments were conducted at season of 2012/2013 at two locations of alluvial soils in Dakahlia Governorate, Egypt, at Batra village in 1st location and El-Tawila village in 2nd location, to evaluate the effect of boron as a foliar application on some potatoes cultivars. The experiments were designed as spilt plot design with three replicates, where potatoes cultivars (spunta and valor) were the main plots, and boron levels (0, 30, 60 and 90 mg L-1) were presented in sub plots. Results revealed that foliar spray of B-levels significantly affected potato growth parameters (i.e. plant height, No. of leaves/plant, fresh weight of plant, dry weight of plant and leaf area). Also all of total tuber yield, dry shoot yield and average weight of tubers significantly increased. Potato tubers yield increased by 17.39 % with foliar application of 60 mg L-1 B in the first location and by 16.95 % with 90 mg L-1 B in the second location; whereas dry shoot yield increased by 33.47 and 30.02 % in both locations, respectively with 60 mg L-1 B foliar spray. The highest average weight of tubers was 267 g in the first location and 275 g in the second location at foliar spray of 60 mg L-1 B. Quality of potato tuber parameters (i.e. dry matter, protein and starch percentage) significantly increased with foliar B application, also the uptake of N, P, and K significantly increased by foliar B application. Potato variety valor appeared superiority in plant growth, total tuber yield (19.905 Mg fed-1), dry shoot yield and total NPK-uptake. Also potato varieties affected significantly N and K uptake. However, the increment of P-uptake, B-concentration, tuber dry matter %, protein % and starch % was not significant.
Keywords: (Boron Foliar application, potato cultivars, growth, yield, quality, NPK-Uptake, B-concentration.)
