چكيده لاتين :
Effects of different methods of iron application on yield , and chemical composition of Lisbon lemon was studied in a two-year research in Haji-Abad Research Station in Hormozgan province. The experiment was conducted on 49 Lisbon lemon trees with 8 meters interval between trees and 7 replications. The treatments were: Control, Traditional application, Surface application of 150 g Fe-EDDHA tree"1, Surface application of 500 g FeS04 tree"1, Localized placement of 500 g FeS04 treeʹ1, Surface application of 500 g FeS04 tree"1 plus foliar application with 0.5% FeS04 solution and finally Localized placement of 500 g FeS04 treeʹ1 plus foliar application with 0.5% FeS04 solution. Results showed that treatments caused statistical differences between plant responses at 5% statistical level. Maximum yield (195.4 kg
tree-1), the most fruit average weight (156.7 g), the highest concentration of K and Fe and Zn in leaf (1.04%, 237.2 and 54.8 mg kg dry weight"1, respectively) and the most acidic pH of fruit were obtained with localized placement of 500 g FeS04 treeʹ1 plus foliar application of FeS04. However, in most cases, no significant difference was observed with elimination of Fe foliar application. Surface application of 150 g FeEDDHA caused 176 kg yield tree"1 and surface use of 500 g FeS04 plus foliar application resulted 170.3 kg yield tree"1. Therefore, two recent treatments were common placed after treatments before. Surface application of 500 g FeS04 tree"1 showed the least desirable effect on yield and fruit quality, after control treatment. Control treatment and traditional application treatment caused 153.4 and 158.3 kg yield tree"1, respectively. Fruit qualitative properties also diminished in these two treatments. So, they stood at the lowest step. Considering above mentioned results, in order to increase yield and improve fruit quality in Lisbon lemon cultivar, using 500 g FeS04 tree"1 plus foliar application of 0.5% FeS04 solution is strongly recommended.
