Performance Assessment of Japanese Mint Varieties for Growth under Open Field and Vertical A-Frame Structure

Japanese mint (Mentha arvensis L.), is a member of the family Lamiaceae which perennial herbaceous aromatic plant but cultivated as an annual for culinary purpose leafy vegetable and natural menthol extraction. It major source raw material flavours fragrance industry. Urban regions are losing cultivable land every day it has become extremely difficult to produce fresh vegetables high quality. By using vertical structures, space can be utilized while increasing quality production. This experiment was conducted at Department Vegetable Science, Horticultural College & Research Institute, Periyakulam during 2022-2023 evaluate performance nine varieties viz., Kosi (V1), CIM-Kranti (V2), Himalaya (V3), Kalka (V4), MAS-1 (V5), Saksham (V6), Gomti (V7), Seelayampatti local (V8) Bangalore hybrid (V9) under open field (G1) A-frame structure (G2) condition. One used in this study contain 516 holes planting. Among varieties, (V6) showed increase growth parameters both conditions. The observations on were recorded height(cm), number leaves, root length(cm), weight roots(g) dry roots(g). variety yielded maximum height (53.05 cm), leaves (112.73), length (39.92 roots (3.204g) (0.874g) followed by (48.83cm, 77.61, 37.75cm, 2.582g 0.648g). As result, interactive action G2V6 due availability nutrients system timely application water nutrient helped better parameters.