EVALUATE THE CORM SIZE ON GROWTH, FLOWERING AND CORM CORMEL YIELD OF GLADIOLUS (Gladiolus grandiflorus)

An experiment was conducted at Horticulture farm, Sher-e-Bangla Agricultural University, Bangladesh to evaluate the effect of corm size on growth and flowering of gladiolus. Experiment consisted three different sized corm viz. C₁= Small size corm (11-20 g); C₂= Medium size corm (21-30 g); C₃= Large size corm (31-40 g). Maximum number of leaves (11.3), number of floret/spike (15.9), spike/plot (21.8), tallest plant (76.3 cm), longest flower stalk (69.3 cm) and rachis (36.3 cm) at harvest were found from C₃. Maximum corm (7.0 cm, 25.1 g, 2.3 cm and 1.2 kg for thickness, weight, diameter and yield/plot respectively) and cormel (25.3, 14.6 g, 1.5 cm and 1.1 kg for number/plant, weight, diameter and yield/plot respectively) production was found from C₃ whereas minimum from C₁.