Response of N, P, K on Corm production, vegetative Growth and spike of Red Ginger variety of Gladiolus under Partial shades of Apple orchids in jammu

Abstract (in English)

Investigations were carried out to study the effect of fertilizer levels on vegetative growth, flowering and com production attributes in gladiolus Cultivar Red Ginger under partial shades of apple orchard. Significantly number of leaves per plant and number of florets per spike remaining open at a time were recorded with treatment N₅₀P₂₅K₂₅ g/m², whereas significantly maximum plant height was obtained by application of N₄₀P₂₀K₂₀ g/m². Treatment N₁₀P₅K₅g/m² advanced the time for showing colour in the first floret. Application of N₄₀P₂₀K₂₀ g/m² significantly increased spike length, number of florets per spike, diameter of first floret, life of spike at well as durability of whole spike under field and thus found as optimal dose for these floral characters. A gradual, steady and significant increase in corms produced per plant, corm size and weight as well as number of cormels  per plant was observed with increasing fertilizer levels recording highest values at N₅₀P₂₅K₂₅ g/m²