Comparative performance of gladiolus cv. Forta Rosa underdifferent environmental conditions on growth and flowering

Abstract

An investigation was conducted with a view to observing the performance of Forta Rosa gladiolus genotypes during the winter season under under different environmental conditions, viz, open field (T1), shade net (T2) and polyhouse (T3) which was laid out using randomized block design with eight replications with three treatments . The study indicated that the effect of high temperature, humidity, carbon dioxide concentration under protected condition gave the best performance of plant characters in respect of economic yield. The various characters like plant height at 30, 60 & 90 days after planting i.e (55.66 cm, 69.67 cm and 110.02 cm) respectively, number of leaves (8.55), spike length (115.98 cm) & rachis length (96.02 cm),number of florets per spike(18.13), fresh weight of corm per plant (81.88 g),corm diameter (7.88 cm) respectively were observed highest under polyhouse condition, whereas, parameters like days taken to spike heading (89.88 days), days to opening of basal floret (95.38 days),floret diameter (10.36 cm), days to full bloom (159.50days), number of corms per plant (1.75),number of cormels per plant (172.38),fresh weight of cormel per plant was recorded under shade net condition T2 (16.49 g) recorded maximum in shade net condition.