This research was conducted during the period of 2014 - 2015 in six locations
ranging from a height of between (0-500 m) in Syria, Tartous Governate in order to survey
and evaluate some mulberry types belong to (Morus alba and Morus nigra). 33 type
s (22
of white mulberry and 11 of black mulberry) were determined for the purpose of
morphological and phenological characterization and for the determination of the degree of
morphological relationship between those types in addition to setting their own taxonomic
keys. Morphological analysis was done based on 14 morphology characteristics (leaves,
catkins, fruits) in addition to a cluster analysis for all types belongs to white and black
species and for each species alone.
The morphological tree for all types showed two main groups with a contrast ratio of
(48%), the first group included three types belong to black mulberry, and the second group
included 30 types belong to both species with a contrast ratio of (0-38%), while the
morphological tree for the black species types showed a contrast ratio of (47%) and (33%)
for the white specie types.
The degree of morphological similarity is variable between the studied types
regardless of fruits color, and the percentage of contrast among the black mulberry types is
higher than white mulberry types.
