Performance of Soybean Cultivars in Hoplolaimus columbus-infested Fields.

Yield performance and host suitability to Hoplolaimus columbus of 18 soybean cultivars in maturity groups V and VI and 21 cultivars in groups VII and VIII were evaluated in 10 experiments. No cultivar was highly resistant to H. columbus. Within individual experiments, few differences were detected in yield losses among cultivars; however, over all locations Braxton, Coker 485, and Leflore were intolerant to H. columbus. Braxton also exhibited pronounced chlorosis at all locations. Coker 368, Coker 488, Deltapine 506, Foster, Kirby, Ring Around 680, and Young sustained high yields.