Wide–Narrow Row Planting Pattern Increases Root Lodging Resistance by Adjusting Root Architecture and Root Physiological Activity in Maize (Zea mays L.) in Northeast China

Root lodging (RL) in maize can reduce yield and grain quality. A wide–narrow row planting pattern increase the growing regions of northeastern China, but whether it improve RL resistance is not clear. Therefore, this study, root architecture distribution, physiological activity, rate under 1 (uniform ridge 65 cm, east–west direction) 2 (wide–narrow rows, 40 double narrow rows 90 wide north–south were studied. The results showed that was significantly lower than 1. number diameter nodal roots on upper node, failure moment, bleeding sap intensity at 3 weeks after VT higher those length density 0–40 cm soil layer tended to be inter-row distributed. increased through an adjustment distribution activity China.