Growth response of black soybean ( Glycine max L. Merril) with a multi canopy cropping system on measurement chlorophyll and leaf area index

Abstract

Black soybean is one of the sources of food that is needed by the people of Indonesia, but its existence is very limited due to the limited area of production that is suitable for its growth so it results in less than optimal production. This study aims to develop new innovations in soybean planting systems by looking at their vegetative growth in terms of the amount of chlorophyll and leaf area index and whether or not it affects vegetative growth. The method in this study used randomized block design with 3 factorials consisting of 4 different cultivars, spacing, and pruning. The parameters measured in this study were chlorophyll a, chlorophyll b, total chlorophyll ratio, and leaf area index. The results obtained on the leaf area index found in the cultivar Detam 4 Prida (K4P2J1) with a total of 121, 33 cm while the amount of chlorophyll in the cultivar Detam 4 Prida (K4P1J1) was 6.37 mol/m2. This study concludes that each treatment is very influential on the growth of soybean plants with a multi-canopy planting system, especially on the cultivar type and spacing.