Pertumbuhan dan struktur anatomi daun dua varietas ganyong (Canna edulis) pada ketersediaan air berbeda

Abstract

Dewi OR, Pitoyo A, Anggarwulan E. 2013. Pertumbuhan dan struktur anatomi daun dua varietas ganyong (Canna edulis) pada ketersediaan air berbeda. Bioteknologi 11: 5-10. The aim of the research was to study the effect of different water availability on growth and anatomical structure of leaves of two varieties of canna (Canna edulis Kerr.), which are verdos varieties (white varieties) and morados varieties (red varieties). Information about physiological and anatomical character of canna is important in order to their cropping development. The research done in randomized design with 2 factors and 3 replicates. The first factor was canna’s varieties (white and red). The second factor was water availability in 5 different fields capacities (20%, 40%, 60%, 80% and 100%). The treatments were be done in 8 weeks, with variable measured, the character growth of plant height, fresh weight, dry weight and leaf anatomical structure indexes include stomata, tick of mesophyll and epidermis. The data were analyzed by analysis of varians, followed by DMRT in 5% confident level. The results showed that differences in crop varieties and the availability of water affect the growth and anatomical structure of cannas’ leaves. Optimum growth found in 80% water availability FC both white and red varieties. Fresh weight, dry weight, stomatal index showed a significant difference, while plant height, thick mesophyll and epidermal thickness showed no significant difference. White varieties more resistant to water stress than red varieties.