Abstract

The objective of this study was to determine the effect of spacings on leaf number, leaf angle and yield of maize grown after rice in dry season. The plots were laid out within the experiment field using Randomized Complete Block Design (RCBD) with Factorial 2x3 and 4 replications. Two spacing levels were used (70x15 and 70x20 cm) and three maize varieties were selected (SW5731, PAC339 and NK6253). The field experiment was conducted in the Nam Chun Sub-District, Lom Sak District, Phetchabun Province, Thailand between December 2020 and April 2021. The results showed that there was no interaction effect between plant spacing and varieties was found in leaf number and yield, but the interaction effect between plant spacing and varieties was found in leaf angle. The average grain yield of maize varieties cultivated at 70x15 and 70x20 cm was 1.77 and 1.86 ton per rai, respectively. under paddy soil conditions, SW5731, PAC339, and NK6253 showed average grain yields of 1.89, 1.78, and 1.78 ton per rai, respectively.