In biology, the BBCH-scale for leafy vegetables forming heads describes 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 leav ...
development of leafy vegetables forming heads, such as
cabbage,
chinese cabbage
Chinese cabbage (''Brassica rapa'', subspecies ''pekinensis'' and ''chinensis'') can refer to two cultivar groups of leaf vegetables often used in Chinese cuisine: the Pekinensis Group (napa cabbage) and the Chinensis Group ( bok choy).
These ...
,
lettuce
Lettuce (''Lactuca sativa'') is an annual plant of the family Asteraceae. It is most often grown as a leaf vegetable, but sometimes for its stem and seeds. Lettuce is most often used for salads, although it is also seen in other kinds of foo ...
and
endive
Endive () is a leaf vegetable belonging to the genus '' Cichorium'', which includes several similar bitter-leafed vegetables. Species include ''Cichorium endivia'' (also called endive), '' Cichorium pumilum'' (also called wild endive), and '' Ci ...
, 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 plan ...
.
The phenological growth stages and BBCH-identification keys of leafy vegetables forming heads are:
References
* {{cite journal
, last = Feller
, first = C.
, author2=H. Bleiholder , author3=L. Buhr , author4=H. Hack , author5=M. Hess , author6=R. Klose , author7=U. Meier , author8=R. Stauss , author9=T. van den Boom , author10=E. Weber
, title = Phänologische Entwicklungsstadien von Gemüsepflanzen: I. Zwiebel-, Wurzel-, Knollen- und Blattgemüse. , journal = Nachrichtenbl. Deut. Pflanzenschutzd.
, volume = 47
, pages = 193–206
, year = 1995
External links
A downloadable version of the BBCH Scales
BBCH-scale