Morphophysiological and yield traits of soybean varieties tolerant of intercropping with maize

Abstract. Permanasari I, Sulistyaningsih E, Kurniasih B, Indradewa D. 2023. Morphophysiological and yield traits of soybean varieties tolerant intercropping with maize. Biodiversitas 24: 3872-3880. Not all grow optimally when intercropped Previously, we identified seven (i.e., "Demas 1", Dena "Dena 2", "Derap "Devon "Wilis") two "Dega 1" "Mahameru") as intolerant based on selection indices yield. This research aims to determine the morphophysiological groups The study used a randomized complete block design three blocks replications, conducted from October 2019 February 2020. Results showed that light intensity in system had decreased by 19.91% relative monoculture at 7 weeks after planting. group displayed significant gains seed weight per plant (143.66%), total biomass (50.04%), harvest index (53.33%), number pods seeds (119.39% 128.86%), leaf nitrogen uptake content (20.83% 6.44%), chlorophyll-a:b ratio (7.20%), stem diameter (7.65%) than group. Correlation analysis revealed highest correlation significantly contributed groups. Seed was mainly affected morphological (total index), physiological (leaf content), components (number pods), whereas influenced only parameters (nitrogen content). Nitrogen considered suitable indicator for determining varieties. Furthermore, using may be solution increase production Indonesia.