استجابة شتلات الفستق الحلبي البذرية صنف عاشوري pistacia vera L. لأوساط زراعية مختلفة و الرش بحامض الجبرليك و الزنك 2-في النمو و تركيز بعض العناصر الغذائية في الأوراق

الملخص EN

This experiment has been carried out in the nursery of college of Agriculture and Forestry, University of Mosul, Iraq during the season of 2005.

To study the effect of five agricultural media : sandy loam soil (river soil) 100 % ; sandy loam soil: manure (3:1) by volume ; sandy loam soil: peat moss (3:1) ;sandy loam soil: manure: peat moss (3: 1/2 : 1/2) and sandy loam soil: manure : peat moss (2: 1 : 1).

Seedlings has been sprayed with three levels of GA3 (0, 50, and 100 mg.l-1) as well as three level of chelated zinc Zn-EDTA (0, 25, and 50 mg.l-1) and their interaction on the growth of Aleppo seedling pistachio cv.

Ashoury.

The aim of the present study was to know the best agiculture media and concentration of GA3 and Zn- EDTA in improving the growth and nutreint concentration in seedlings leave.

The results obtained in this study could be summarized as follows: Vegetative growth parameters were significantly effected by the agricultural media .Using Fourth mixture gave the best results of seedlings : leaf area, seedling leaf area, Phosphorus and potassium concentrations in the leaves .Sprying plants with 100 mg.l-1 GA3 caused significant increase in leaf area, seedling leaf area, whereas spraying with GA3 did not caused any significant effect on dry weight of plant and decreased the concentrations of N,P,K and Zn in the leaves.

Foliar application of Zn-EDTA caused significant increase on all vegetative and root growth parameters, N,P,K and Zn concentrations in the leaves of pistachio seedlings.

The best treatment was 50 mg Zn .l-1 which showed the highest concentrations of N and Zn in leaves, leaf area, seedling leaf area and vegetative dry weight.