add method and scale to the variable assessment of apical pubescence boolean 0&1

[marieALaporte]

[Term]
id: CO_334:0000256
name: assessment of apical pubescence boolean 0&1
namespace: CassavaVariable
def: "Assessment of the young leaf pubescence . Record the most frequent occurrence scored as 0 = Absent, 1 = Present." [CO:curators]
synonym: "APUBESA" RELATED []
relationship: variable_of CO_334:0000283 ! Apical Pubescence
created_by: AAfolabi
creation_date: 2015-09-28T17:48:12Z