EFFECT OF SPRAYING WITH FENUGREEK EXTRACT, POTASSIUM SILICATE AND SALICYLIC ACID ON YIELD AND FRUIT QUALITY OF TWO POMEGRANATE CULTIVARS UNDER RECLAIMED SOILS CONDITIONS

Document Type : Original Article

Authors

1 Department of Plant Production, Desert Research Center, El-Matareya, Cairo, Egypt

2 Department of Plant Production, Desert Research Center, Cairo, Egypt

Abstract

This experiment was done throughout two successive seasons (2018 and 2019) on eight years old Wonderful and H116 pomegranate cultivars, atba private orchard located in Alexandria desert road, Al-Behaira Governorate, Egypt. Fifty-six pomegranate trees were chosen for this investigation, that grown in sandy soil under a drip irrigation system and spaced 3 x 5 m apart. The purpose of this study was to inspect the effect of fenugreek seed extract, salicylic acid and potassium silicate on leaf mineral content, yield and fruit quality of the pomegranate cultivars. The present investigation was laid out in a split-plot design, where the treatments placed in the main plots and the two pomegranate cultivars were allocated in subplots with four replications seven foliar application treatments used as follow: untreated tree (control treatment), fenugreek seed extract at 4 and 8 g/L, salicylic acid at 5 and 10 g/L and potassium silicate at 100 and 200 ppm spraying treatments. Treatments were applied monthly from June till the preharvest time. The obtained results revealed that, in most cases all treatments enhanced pomegranate yield characters and fruit quality compared with untreated trees. Spraying potassium silicate at 200 ppm had a beneficial role in enhancing Wonderful cultivar trees growth as well as leaves percentage of phosphorus and potassium, fruit physical properties, fruit and length, total yield, total aril weight / fruit, fruit cracking (%) and marketable fruits (%). The obtained data also showed improvement in fruit chemical properties as well as TSS (%), total sugar (%), anthocyanin and lower acidity (%) under conditions of this study.
 

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