Growth and production of gladiolus (Gladiolus hybridus L.) by various corm diameter and concentration of growth regulator Atonik

Abstract

This paper reports a field experiment in a highland of Patappang Village-Gowa of South Sulawesi aiming to determine the effect of various corm diameter and atonic concentration on the growth and production of gladiolus plants. The experiment was arranged with factorial Randomized Block Design (RBD). The first factor was the corm diameter, which consists of two levels: 2 cm and 2.5 cm. The second factor was atonic concentration consisting of 3 levels: 2 mL L-1 water, 3 mL L-1 water, 4 mL L-1 water. There were six treatment combinations with three replications in three groups, making a total of 18 treatment units. The results showed there was an interaction between a 2.5 cm corm diameter and Atonik concentration of 3 mL L-1 for plant height parameter (84.4 cm). Corm diameter of 2.5 cm gave the best results on flowering age (82.0 days), flower stalk length (23.09 cm) and the number of florets (6.2 florets). Atonic concentrations of 2 mL L-1 and 3 mL L-1 gave the best results on the observation of plant height (84.40 cm) and the number of leaves (32.67 strands).