VARIETAL NAME: 'P 22'

Taxonomical and basic information

Varietal name:
'P 22'
Identification/ Accession n.:
5
Ingroup:
Morus indica s.l.
Species:
Morus indica
Origin:
Bulgaria
Obtained:
1963

Morphological characteristics

Trunk:
Trunk circumference (cm):
72
Trunk colour:
Greenish brown
Shoots:
Colour of one-year old shoot:
Dark brown
Lenticel density:
High
Lenticel shape:
Oval
Buds:
Bud shape:
Broad triangular
Bud colour:
Medium brown
Bud size:
small
Leaves:
Phyllotaxis:
Alternate spiral
Leaf shape:
Simple
Average leaf size: length (cm):
25.36
Average leaf size: width (cm)
16.56
Leaf size ratio:
Medium (1.3-1.5)
Petiole size (cm):
4.4
Petiole range:
Long (41-70 mm)
Shape of leaf base:
Retuse
Shape of leaf apex:
Acute
Leaf blade tip:
Caudate
Leaf blade margin:
Serrate
Hairiness:
Glabrous
Glossiness:
Glossy

Reproductive structures

Sexual dimorphisem:
Monoecious
Inflorescence type:
Female
Inflorescence size:
Female infl. length (mm):
6.0
Female infl. diameter (mm):
5.0
Female infl. stalk length (mm):
7.0
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):
1.348
Infructescence length (mm):
23.7
Infructescence width (mm):
11.6
Length of peduncle:
Short
Infructescence colour:
Reddish black
Taste:
Acidic
Infructescence shape:
Cylindrical

Phenological descriptors

Date of bud burst (week):
14
Flowering date (week):
16
Date of infructescence ripening (week):
Medium
Uniformity of infructescence ripening:
Medium
Abundant autumn colouring (week):

Growth and yield attributes

Vigour:
Lenght (cm):
107.6
Number of lateral shoots:
15
Lenght of internode (cm):
7.4
Leaf No./meter:
Weight of 100 fresh leaves (g):