method_of Six plants per plot were assessed for severity of phoma stem canker on the upper stem. For assessing the upper stem lesion severity, the stem were cut at the upper stem area, the cross-section was scored on a 0-7 scale ( 0= no symptoms observable, 1 = ≤ 5% girdling,2= 2-25% girdling, 3=26-50% girdling, 4=51-75% girdling, 5= 75-100% girdling, 6=100% girdling ( stem weak/firm), 7 = 100% girdling (stem dead/lodged)) Phoma stem cancer severity - Estimation entity acronym attribute scale_of variable_of