VARIETAL NAME: 'P 23'

Taxonomical and basic information

Varietal name:
'P 23'
Identification/ Accession n.:
4
Ingroup:
Morus sp.
Species:
Morus sp.
Origin:
Bulgaria
Obtained:
1963

Morphological characteristics

Trunk:
Trunk circumference (cm):
52
Trunk colour:
Greyish brown
Shoots:
Colour of one-year old shoot:
Greyish brown
Lenticel density:
Sparse
Lenticel shape:
Oval
Buds:
Bud shape:
Narrow triangular
Bud colour:
Dark brown
Bud size:
medium
Leaves:
Phyllotaxis:
Opposite decussate
Leaf shape:
Simple
Average leaf size: length (cm):
11.32
Average leaf size: width (cm)
10.3
Leaf size ratio:
Low (<1.2 broad leaves)
Petiole size (cm):
2.36
Petiole range:
Medium (21-40mm)
Shape of leaf base:
Cordate
Shape of leaf apex:
Acute
Leaf blade tip:
Acuminate
Leaf blade margin:
Dentate
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):
5.0
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):
1.189
Infructescence length (mm):
15.8
Infructescence width (mm):
11
Length of peduncle:
Medium
Infructescence colour:
Purple brown
Taste:
Sweet
Infructescence shape:
Ovoid/globose

Phenological descriptors

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

Growth and yield attributes

Vigour:
Lenght (cm):
113.4
Number of lateral shoots:
21
Lenght of internode (cm):
5.2
Leaf No./meter:
Weight of 100 fresh leaves (g):