ENERGY UTILIZATION OF BARLY (HORDEUM VULGARE L.) GENOTYPES UNDER VARIOUS PLANTING PATTERNS

The investigations were carried out to determine energy utilization efficiency (Eu) in ten barley genotypes planted at a roW distances of 15 cms, 20 cms, 25 cms and 30 cms, respectively. Genotype DL-157 had an overall average maximum (1.56%) Eu, followed by RD-57 (1.45%). RD-137 exhibited very less (1.10%) Eu but yielded comparatively higher which is attributed to its higher energy utilization in the development of ear. Among row-spacings 20 cm showed significantly higher Eu and also yielded highest due to its efficient canopy architecture. Treatment combinations V3 S2, V3 S1 and V1 S2 utilized the maximum amount of solar energy resulted in higher dry matter (Dm) production and grain yields.