EFFECT OF SPRAYING NANO ZINC ON VEGETATIVE TRAITS OF SOME FABA BEAN GENOTYPES
S. A. Mahdi | A. H. AbdulKafoor
A field experiment was conducted at the Agricultural Research Station of the College of Agriculture, Anbar University, Ramadi district during the 2021-2022 season. The aim of this experiment was to study the effect of four concentrated sprays of Nano-zinc fertilizer on some growth traits of four different Faba bean genotypes. Split Plot Design was applied according to R.C.B.D. design with three replicates. The main factor included four Nano-zinc concentrations: 0, 60, 120, and 180 mg L-1, while the other factor included four Faba bean genotypes (Local, American, Dutch, and Italian). The results showed that the studied traits were significantly influenced by the study factors. The American genotype achieved the highest average in most studied traits, with a plant height of 93.96 cm, leaf area of 6.10 cm² plant-1, leaf chlorophyll content of 1.39 mg g-1, and zinc concentration in leaves of 98.38 mg kg-1. Spraying with Nano-zinc fertilizer also led to significant improvement in most of the studied traits, where the high concentration of zinc (180 mg L-1) led to the highest average number of branches per plant (10.40 branches plant-1) and zinc concentration in leaves (100.18 mg kg-1). As for the interaction between genotypes and Nano-zinc, it significantly influenced some of the studied traits. The interaction between the American genotype plants treated with 60 mg L-1 Nano-zinc achieved the highest averages for plant height and leaf zinc concentration.
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