Thesecondarystagesarealsonumberedfrom0to9,beingmostrelated to ordinal or percentage values of growth. Hence, value3 of principal stage 6 (flowering) is assigned when 30% of flow-ers open and its identification will be 613. Likewise, stage 705identifies the value 5 of the principal stage 7 (fruit development),which represents fruit at about 50% of final size. In other cases, thevalues of secondary stages indicate qualitatively different stageswithin a given principal phenological stage. For example, value 3of principal stage 5 (inflorescence emergence) of secondary flow-ering(mesostage2)indicatesfirstfloralprimordialjustvisiblyandthe beginning of the new (second) panicle development, and isidentified as 523