attribute scale_of method_of acronym Red-colored area in the internode outer zone (Z1), obtained after fasga staining of the internode. Outer and inner zones are delimited visually based on their anatomical differences. Internode rank and time of observation must be provided when using this trait. Internode stands here for internode of the main shoot. Red-colored area in the internode outer zone (Z1) InterNodZ1RedArea Red-colored area in the outer zone (Z1) of the internode cross section internode entity variable_of