Responses of Branch Number and Yield Component of Soybean Cultivars Tested in Different Planting Densities

Increasing planting density is one of the key management practices to enhance soybean yield. A 2-yr field experiment was conducted in 2018 and 2019 including six densities two cultivars determine effects on branch number yield, analyze contribution branches The yield ZZXA12938 4389 kg ha−1, which significantly higher than that ZH13 (+22.4%). In combination with year cultivar, increased by 16.2%, 31.4%, 41.4%, 46.7% for every increase 45,000 plants ha−1. Yield will not when exceeds 315,000 correlation analysis showed pod per plant number, while unit area decreased; thus, decreased. With first, then plateaued. could produce a high under lower due more branches, had potential smaller tolerance close planting. Therefore, seed can be selecting little branching capacity moderately