The BBCH-scale for citrus is a classification system used in

biology Biology is the scientific study of life and living organisms. It is a broad natural science that encompasses a wide range of fields and unifying principles that explain the structure, function, growth, History of life, origin, evolution, and ...

to describe the

phenological Phenology is the study of periodic events in biological life cycles and how these are influenced by seasonal and interannual variations in climate, as well as habitat factors (such as elevation). Examples include the date of emergence of leave ...

development of citrus plants using the

BBCH-scale The BBCH-scale is used to identify the phenological development stages of plants. BBCH-scales have been developed for a range of crop species where similar growth stages of each plant are given the same code. Phenological development stages of pla ...

. The phenological growth stages and BBCH-identification keys of citrus plants are:

References

* {{cite journal , last = Agusti , first = M. , author2=S. Zaragoza , author3=H. Bleiholder , author4=L. Buhr , author5=H. Hack , author6=R. Klose , author7=R. Stauss , title = Escala BBCH para la descripción de los estadios fenológicos del desarrollo de los agrios (Gén. Citrus) , journal = Levante Agricola , volume = 3 , pages = 189–199 , date = 1995 BBCH-scale