This study was done in the lath house of Horticulture and Landscape Gardening Dept. / College of Agriculture / University of Anbar during the growth season 2021 to study the effect of foliar spraying chelated Fe in three levels (0, 50, 100 mg. L-1), symbolled as (F0, F1, F2) successively with alga mix (alga mix) in three levels (0, 1, 1.5 mg. L-1) and symbolled as (S0, S1, S2) successively, and their interaction in vegetative growth traits and leaves content of mineral elements for buckthorn transplants cv.-Tafahi. Results has shown the positive effect of foliar spraying the chelated Fe on the majority of vegetative growth traits and leaves nutrient content of buckthorn transplants. So, spraying at concentration F2 (100 mg. L-1) has led to significant superiority in plant height increment, shoots number, leaf area, chlorophyll, carbohydrates, iron and saponins, successively; so, they reached 72.528 cm, 15.134 shoot. Transplant, 22.628 cm2, 41.099 mg. g-1 fresh weight, 2.421%, 190.667 ppm and 1.215 g. ml-1. Also, spraying with (algal mix) at concentration S2 (1.5 g. L-1) has led to significant superiority in all vegetative growth traits and leaves nutrient content, so it caused a significant increase in plant height incrementnumber, leaf area, chlorophyll, carbohydrate, chelated iron and saponins, successively; so, it reached 72.478cm, 13.503 branch. seedling-1, 22.473 cm2, 41.207 mg. g-1 fresh weight, 2.456%, 189.667 ppm and1. Results showed that interaction between chelated Fe and alga mix at concentration (100 mg. L-1 Fe + 1.5 g. L-1 alga mix) has given significant increase in plant height, branch number, leaf area, chlorophyll, carbohydrate, Fe and saponins, successive with values (75.057 cm, 19.183 branch. seedling-1, 23.833 cm2, 41.537 mg. g-1 fresh weight, 3.800%, 194.00 mg), successively, compared to control treatments. |
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