Effect of Foliar Spraying with Nano Iron and Ascorbic Acid on the Vegetative and Fruiting Growth of Lemon,

Abstract

The experiment was carried out on 6-year-old trees in one of the private orchards of the Khalis district, Diyala governorate. The experiment included a study of two factors, the first is of three levels of Nano-iron Fe (0,20,40) mg l-1, and the second factor is of three levels of Ascorbic Acid (0,200,400) mg l-1. The experiment was carried out according to a completely randomized block design (RCBD) as aexperiment with three replicates, and the results were analyzed using the statistical program SAS (2003) and the averages were compared according to Duncan's multiple range test at a probability level of 0.05.

The results of the study showed a clear significant superiority of the treatment with nano iron at a concentration of 40 mg L-1 in each of the characteristics of leaf area, total chlorophyll, and the level of carbohydrates in the leaves. It also surpassed the characteristics of the total number of fruits, weight of the fruit, and the total yield of the plant compared to the treatment by nano iron at a concentration of 20 mg L-1 and the comparison treatment. The results also showed that the treatment by ascorbic acid at a concentration of 400mg l-1 was significantly superior in all the studied vegetative and fruiting traits compared to the Ascorbic treatment at a concentration of 200 mg and comparison treatment.