Growth and yield response of rice based on different planting distances in rainfed field

Abstract

Planting distance is one of the important aspects in cultivation management. The study aimed to determine the response of rice plants at various planting distance based on the components of growth and yield. It was conducted in a rainfed rice field covering an area of approximately 1 ha during the Second Planting Season in Pemalang Regency used a Randomized Block Design (RBD) using planting distances as a single factor, which consisted of Jajar legowo 2: 1/40 (12.5 cm x 25 cm x 40 cm); 2: 1/50 (15 cm x 25 cm x 50 cm) and conventional planting distance/Tegel spacing system (20 cm x 20 cm), repeated five times. The observed variables include growth and yield components. Data were analyzed by means of variance (Anova) followed by the Least Significant Difference (LSD) test. The results of the study showed that the Jajar legowo 2: 1/40 planting system was observed to be able to produce the highest number of tillers, even though the Jajar legowo 2: 1/50 resulted in the highest plant height, number of full grains, and produced the highest HDG of 5,619 tons ha-1 compared to other planting distances.