B. Abhishek, P. Hemanth Kumar, S.K. Nataraj, Basavalingaiah and N. Kiran Kumar
Abstract
An experiment entitled âEffect of planting densities on growth and physiological parameters of cut chrysanthemum (Dendranthema grandiflora Tzvelev.) genotypes under protected cultivationâ was conducted at Department of Floriculture and Landscape Architecture, College of Horticulture, Mudigere, KSNUAHS, Iruvakki, Shivamogga, during 2022-23. The experiment was laid out in Factorial Randomized Complete Block Design (FRCBD) having two factors viz., Factor A- G1 (Big White), G2 (Champagne Yellow), G3 (Candore Pink), G4 (Feeling Dark Green), G5 (Harley Red) and Factor B- D1(36 plants/m2), D2 (72 plants/m2), D3 (108 plants/m2) replicated thrice. All five genotypes were planted under three different planting densities. The results indicated that among different interactions, genotype Champagne Yellow under planting density one (G2D1) recorded maximum plant height (117.40 cm), inter nodal length (5.23 cm), plant spread in E-W (23.23 cm) and N-S direction (22.53 cm). However, genotype Feeling Dark Green under planting density one (G4D1) recorded maximum stem girth (7.73 mm). With respect to physiological parameters, genotype Champagne Yellow under planting density one (G2D1) recorded maximum leaf area, chlorophyll a, chlorophyll b and total chlorophyll content (1778.43 cm2, 1.16, 0.64 and 1.77 mg/g).