دراسة تأثير الرش الورقي بحامضي الساليسيلك و الهيوميك في بعض صفات نمو وحاصل أشجار المشمش( Prunus ameniaca L.) صنف Royal

Abstract

This study was carried out on six year old, thirty six apricot trees at a private orchard near Daraman, Kirkuk governorate during 2017-2018 growing season in order to study the effect of both Salicylic and Humic acids with (Control, 100, 200)mg/L as well as (Control, 3 and 6) ml/L for Salicylic and Humic acids Successively on Leaf area, Chlorophyll content, number of harvested fruits on the trees, average yield per/tree. Factorial experiment with using (R.C.B.D) with four replicates was applied 100 mg/L Salicylic was superior significantly with regard to Leaf area while 200 mg/L Salicylic was superior significantly with respect to chlorophyll content, number of harvested fruits and average weight of fruits. On the other hand, 3 ml/L humic acid was superior in respect to bath leaf area and whereas, 6 ml/L humic exceeded significantly with regard to chlorophyl content and number of harvested Fruits. Combination of 100 mg/L Salicylic with control humic acid gave the best results with regard to leaf area Chlorophyll content 200 mg/L Salicylic with 3 ml/L humic weight of individual fruit, while interaction of resulted in getting best number of harvested fruits. Furthermore, combination of 200 mg/L Salicylic acid with 3 ml/L humic acid got the best average yield/per tree