Role of agrochemical sprays on enhancing the seedling growth of Citrus sp.

摘要

An experiment on the acceleration of seedling growth using agrochemical sprays was conducted during 2001-03, in Karnataka, India. The treatments consisted of foliar sprays of GA3 (50, 100 and 200 ppm), urea (0.5%) and ZnSO4 (0.2%) in different combinations. The growth of Rangpur lime [Citrus limonia], Troyer citrange [Citrus sinensis x Poncirus trifoliata] and Trifoliate orange [Poncirus trifoliata] seedlings in the nursery was significantly accelerated with the application of 50 ppm GA3 + 0.5% urea + 0.2% ZnSO4 compared with the other treatments and the untreated control. This treatment combination also recorded the highest values for height, girth, number of leaves, root length, root girth, root volume and dry matter content of all three Citrus spp. Among the species, Troyer citrange responded better to the foliar spray treatments..