This research was carried out to determine the effect of boron fertilization on hollow stem development in broccoli under field conditions, 2016-2017. In study, three cultivars (Brassica oleracea var. italica, Plenk cvs. 'Batavia F1', 'Burney F1' and 'Lucky F1') were used as plant material. addition, applied at 0, 0.5, 1, 1.5 kg da-1. It determined that applications varied according doses. clea...