Effect of spry with concentrations of zinc on growth and yield of two broad bean ( Vicia faba L.) cultivars

Abstract

Afield experiment was conducted at Hussainyah township of Kerbala, Iraq , during the winter season of 2014 . The aim was to investigate the effect of foliar application of zinc on growth and yield of two Vicia faba L. cultivars . The experiment design was (RCBD) in factorial experiments with three replications in two factors. .The first factor included two broad bean cultivars (local and luz de otono) . The second factor included zinc concentrations (10 , 20 , 30 ,40 mg L-1 ) in addition to control treatment (broad bean plants which application with distilled water only) .The result showed that local cultivar plants gave the highest values of branches number, 100 seed weight , pods number and seed yield which were 9.55 branch plant-1 ,12.48 pod plant 123.33 gm and 2617 kg h-1 , respectively . Broad bean plants that sprayed with zinc concentration 10 mg.L-1 gave the highest values of branches number, seed number pod-1 and seed yield 13.05 branch plant-1 ,4.55 seed pod-1 and 2878 kg h-1 , respectively . Broad bean plants that sprayed with zinc concentration 30 mg L-1 gave highest values of plant height and 100 seed weight 67.17 cm and 126.05 gm . The interaction between zinc concentration and cultivars was significant in most studied traits , the local cultivar which sprayed with zinc concentration 20 ml L-1 gave the highest seed yield 3505 kg h-1 .