Correlation of net photosynthesis to the sum of productive branches and seed weight on shaded soybean

Abstract

The morpho-physiological of plants will be changed in shaded condition. This paper examined the correlation of net photosynthesis to the sum of productive branches and seed weight on four shaded soybeans at various shading levels. A split-plot factorial design was used in this study with three replications. The treatments consisted of shading level as the main plot with four treatment levels, namely 0% (no shade), 30%, 50%, and 70% shade; soybean varieties as the subplot consisted of four soybean varieties, namely Anjasmoro, Pangrango, Tanggamus, and Nanti. The net photosynthetic data and seven agronomic characteristics data were analyzed by ANOVA (F test) followed by the DMRT and Pearson correlation analysis at test level 5%. The result showed that the number of productive branches and seed weights per plant positively correlated with net photosynthesis which was significant at 0.47% and 0.41%, respectively.