Growth and Yield of Two Eggplant Cultivars During Summer Plantations Affected by Foliar Spray With Some Safety Materials

Abstract

Two field experiments were carried out during the two summer seasons of 2019 and 2020 in the private Vegetable Farm, Abou-Hammad District, Sharkia Governorate, Egypt . The aim of this experiment was to study the effect of foliar spray with vermicompost tea (VCT) as a natural fertilizer ( 2.5 and 5 ml /l ) and yeast extract (YE) as biostimulant ( 15 and 30 g / l) , as well as sprayed with water on vegetative growth and yield and its components of two eggplant cultivars ( long black and long white as long slender fruits ). Foliar spray of two cultivars of eggplant grown in sandy loam soil during summer plantations with vermicompost tea at 2.5 or 5ml /l and yeast extract at 15 and 30 g /l increased vegetative growth and fruit yield compared to foliar spray the same cultivars with water (control) . Spraying long black cultivar plants with vermicompost tea at 5 ml /l recorded the tallest plants and gave the highest number of both leaves and branches/ plant, fresh and dry weight of branches , leaves and shoots /plant, chlorophyll a, b, total (a+b) and carotenoides in leaf tissues, average number of fruits/plant, average fruit weight, yield / plant , total yield /fad. and fruit length and diameter.