The effect of foliar application of some amino acid compounds on photosynthesis and yield of two commercial cultivars in pistachio orchards of Kerman province in Iran

ABSTRACT:In order to investigate the effect of foliar application of some of amino acids compounds on photosynthesis and yield of MomtazandOhadipistachio cultivars, this experiment was carried out as a split plot design and in form of complete randomized blocks. The design was carried out in three foliar application treatments including Kadoustim®, Humi Fort® and water as control, any of which were applied on MomtazandOhadi pistachio cultivars trees in two times of endocarp lignification and embryo growth completion. During these treatments, the quantitative and qualitative properties, including shell dehiscence percentage, number of blank pistachios, flower bud abscission, sugar content, percentage of sugar, fat and protein of the nut, and photosynthesis were measured and compared with control. The results indicated that the experimental treatments increased the protein percentage of the nut, but had no effect on other measured characteristics.