作者: D.M. Salazar , P. Melgarejo , R. Martínez , J.J. Martínez , F. Hernández
DOI: 10.1016/J.SCIENTA.2006.01.022
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摘要: As most fruit tree species, the guava (Psidium guajava L.) shows different phenological stages throughout its vegetative period in response to environmental conditions. Sixteen were identified during annual growing cycle, starting at bud dormancy and ending ripening. The phenology was coded according BBCH General Scale Fleckinger's code. duration of every stage measured both days as cumulative degree days.