*Deptt. of Horticulture, G.B. Pant University of Agriculture & Technology, Pantnagar-263 145, U.S. Nagar (U.P.).
Department of Horticulture, School of Agricultural Sciences and Rural Development, Nagaland University, Medziphema-797 106 (Nagaland)
An experiment was carried out to study the effect of spacing and nitrogen on growth, conn and cormel production in gladiolus cv. Red Beauty in a factorial RBD. Corms of 4.5 cm diameter were planted at 15 × 30, 20 × 30, 25 × 30 and 30 × 30 cm and nitrogen was applied at four levels i.e. 0, 100, 200 and 300 kg ha−1 at Horticulture Experimental Farm, Medziphema during 1998–99. Spacing 25 × 30 cm and N 200 kg ha−1 resulted into maximum number of leaves per plant, length of leaf, width of scape, plant height, number and weight of corms per plant. Width of leaf and yield of cormels/ha were significantly influenced with application of 200 kg N ha−1 while spacing had no significant effect on both parameters. However, spacing and N levels failed to exert any significant effect on days to sprouting, percentage of sprouting, and no. and weight of cormels per plant. Interaction of spacing and nitrogen levels gave conspicuous effect on length of leaf and height of plant with 25 × 30 cm spacing and 200 kg N ha−1. Thus, a spacing of 25 × 30 cm with nitrogen dose of 200 kg ha−1 is beneficial in gladiolus cultivation under high rainfall areas of low hills of Nagaland.
Gladiolus, spacing, nitrogen
