Effect of zinc on growth and yield of tomato (lycopersicon esculentum cv.pusa ruby)

The field experiment was carried out at Rabi 2016-17 and 2017-18 at Research farm of Central Agricultural University, Imphal, Manipur. The experiment was laid out with four replications and four treatment, considering four levels each of zinc (0, 2.5, 5.0, and 10.0 Zn kg/ha in form of ZnSO4.7H2O). The results of experiment indicated that, application of different dose of Zn significantly increased plant growth and yield of tomato. The maximum plant height (cm), number of branches per plant, number of leaves per plant, first day flowering 29.83 days (first year) and 29.57 (second year), number of fruits per plant 27.90 (first year) and 28.76 (second year), fruit weight per plant 1.37 kg (first year) and 1.39 kg (second year) and fruit yield 50.69 (first year) and 51.54 (second year) t/ha were obtained in both the years under 10 Zn kg/ha.