Evaluation of foliar application calcium chelated and amino acid on nutritional status, chlorophyll and leaf area surface of Golden Delicious and Granny Smith

Balanced nutrition mineral and organic matter is the most important factors affecting the yield and quality of apple trees. Treatment with calcium chelate and amino acid solution with a concentration of 0, 2, 4 per thousand, and three have been sprayed (After the sprouts before harvest once a month). Chlorophyll content, leaf area surface, average nitrogen, phosphorus, potassium fruits were determined. The results of these experiments suggest that the type of rootstock had significant impact on the amount of mineral elements, chlorophyll content and leaf area surface. A maximum concentration of mineral elements and leaf area surface in the Granny Smith and chlorophyll content in Golden Delicious were observed. The use of calcium chelated showed the highest phosphorus, potassium and calcium than control fruits. The results showed that the effect of amino acids on chlorophyll content, leaf area surface, nitrogen, potassium and calcium were significant at the 1% level. The results show that foliar application calcium chelate and amino acids have the greatest impact on the Granny Smith in comparison with Golden delicious. Chelated calcium and amino acids at 4% had greatest impact on nutrient status in Granny Smith. Therefore, regarding to beneficial effects of chelate calcium and amino acid on improved the traits measured may be recommended for Granny smith in the study area and in the similar regions.