EFFECT OF NANO IRON AND SALICYLIC ACID SPRAY ON STRAW BERRY PLANTS GROWTH AND PRODUCTIVITY

Abstract

A factorial experiment was carried out in a plastic house at the nursery of the Horticulture Division in the Plant Production Department, Directorate of Agriculture in Diyala Governorate during the 2020-2021 growing season., aiming to study the effect of spraying strawberry plant Camarossa variety with Nano iron and salicylic acid. The experiment was conducted using RCBD, with three replication, and two factors, the first was Nano iron at three concentrations (0,10,20 mg L-1 ), and the second was salicylic acid at three concentrations also (0,100,200 mg.L-1 ). Means were compared using Duncan's multiple range test 0.05 probability level. Results can be summarized as follows: Nano-Fe sprays at 20 mg L-1 significantly improve the vegetative and fruiting characteristics. It gave the highest leaf area, leaves N, P content(%), number of fruits per plant, the highest fruit weight, and the highest TSS content(%) in fruit juice compared to the untreated control. Salicylic acid spray at 200 mgL-1 gave the best results in leaves’ Nitrogen content(%), total leaf area, and mean fruit weight compared to untreated one, on the other hand, the salicylic acid spray did not significantly affect the leaves’ P content, total number of fruits, and total soluble solids.