variable_of 1 F1 fully stretched with juvenile aspect, F2 comparable to older leaves apical bud not fully closed 2 rolled-up young leaves at equal height 2,5 attribute 3 More than 2 rolled-up young leaves F2 fully stretched transition to bud structure 1,5 0 Apical bud red brown acronym F1 fully stretched comparable to older leaves apical but of older leaves, apical bud of fully closed between green and red 0,5 method_of F2 fully stretched no bud structure 2 entity scale_of Budset scoring scale