Evaluation of foliar treatment of free amino acids effect on some of quantitive and qualitive parameters in pistachio (Pistachia vera L.) Ohadi (Fandoghi) cultivar

In last research, effects of foliar amino acid solution application with or without three important macro elements such as nitrogen, phosphorus and potassium was evaluated on leaf of pistachio plants, Ohadi cultivar in Iranian research institute of pistachio, Kerman station. The experiment was carried out in statistical design full random blocks (RCBD) contain five treatments and three replicates. After treatments of solutions, different parameters such as leaf area, stomata transpiration and conductance rate, percentage of fruit Shell Indehiscence, percentage of empty fruits, total weight of fruit, in leaf and fruit, and other some parameters was determined. The data were analyzed by using statistical software SPSS version 12.0 on 5% significance level statistically. For comparison of variables one-way ANOVA and Duncan test was used. Results show that in general, amino acid treatments has positive effect on growth, function and quality of pistachio, Ohadi cultivar fruit in comparison control on 5% significance level. Amino acid treatments containing nutritional elements cause increasing of total weight of fruit than control significantly. Therefore, it is results that application of amino acid solutions containing macro elements (NPK) as spraying form on leaf surface, can increases quality and quantity pistachio cultivar Ohadi production. This manner of foliar application of solutions can be suitable method for different pistachio fertilizers that used via addition to soil.