Asad, A Effects of boron foliar applications on vegetative and reproductive growth of sunflower. [electronic resource] - Annals of botany Oct 2003 - 565-70 p. digital Publication Type: Journal Article ISSN: 0305-7364 Standard No.: 10.1093/aob/mcg179 doi Subjects--Topical Terms: Boron--deficiencyFlowers--drug effectsHelianthus--drug effectsPlant Leaves--drug effectsPlant Roots--drug effectsPlant Stems--drug effectsReproduction--drug effects