VARIETAL NAME: 'Russian'

Taxonomical and basic information

Varietal name:
'Russian'
Identification/ Accession n.:
69
Ingroup:
Morus alba s.l.
Species:
M. alba
Origin:
Armenia
Obtained:
1964

Morphological characteristics

Trunk:
Trunk circumference (cm):
45
Trunk colour:
Light brownish-grey
Shoots:
Colour of one-year old shoot:
Greyish brown
Lenticel density:
Sparse
Lenticel shape:
Round
Buds:
Bud shape:
Medium triangular
Bud colour:
Greyish brown
Bud size:
large
Leaves:
Phyllotaxis:
Opposite decussate
Leaf shape:
Simple
Average leaf size: length (cm):
20.56
Average leaf size: width (cm)
14.52
Leaf size ratio:
Medium (1.3-1.5)
Petiole size (cm):
3.92
Petiole range:
Medium (21-40mm)
Shape of leaf base:
Cordate
Shape of leaf apex:
Acute
Leaf blade tip:
Caudate
Leaf blade margin:
Crenate
Hairiness:
Glabrous
Glossiness:
Glossy

Reproductive structures

Sexual dimorphisem:
Monoecious
Inflorescence type:
Female
Inflorescence size:
Female infl. length (mm):
5.0
Female infl. diameter (mm):
4.0
Female infl. stalk length (mm):
4.0
Male infl. length (mm):
Male infl. diameter (mm):
Male infl. stalk length (mm):
Polygamous infl. length (mm):
Polygamous infl. diameter (mm):
Polyg. infl. stalk length (mm):
Infructescence:
Fruit weight (g):
0.818
Infructescence length (mm):
15.1
Infructescence width (mm):
8.4
Length of peduncle:
Short
Infructescence colour:
Reddish black
Taste:
Sweet
Infructescence shape:
Ovoid/globose

Phenological descriptors

Date of bud burst (week):
13
Flowering date (week):
15
Date of infructescence ripening (week):
Early to medium
Uniformity of infructescence ripening:
Early to medium
Abundant autumn colouring (week):

Growth and yield attributes

Vigour:
Lenght (cm):
114.7
Number of lateral shoots:
22
Lenght of internode (cm):
5.1
Leaf No./meter:
Weight of 100 fresh leaves (g):