VARIETAL NAME: 'Kokusō 21'

Taxonomical and basic information

Varietal name:
'Kokusō 21'
Identification/ Accession n.:
ES24_00815
Ingroup:
Morus indica s.l.
Species:
M. indica (syn. M. latifolia)
Origin:
Japan
Obtained:
1950

Morphological characteristics

Trunk:
Trunk circumference (cm):
130
Trunk colour:
Greyish brown
Shoots:
Colour of one-year old shoot:
Greyish brown
Lenticel density:
Medium
Lenticel shape:
Round
Buds:
Bud shape:
Narrow triangular
Bud colour:
Medium brown
Bud size:
Medium
Leaves:
Phyllotaxis:
Predominantly alternate spiral
Leaf shape:
Simple
Average leaf size: length (cm):
20,6
Average leaf size: width (cm)
17,1
Leaf size ratio:
Medium (1.3-1.5)
Petiole size (cm):
4.5
Petiole range:
Long (41-70mm)
Shape of leaf base:
Cordate
Shape of leaf apex:
Acute
Leaf blade tip:
Caudate
Leaf blade margin:
Crenate
Hairiness:
Midrib and veins
Glossiness:
Glossy

Reproductive structures

Sexual dimorphisem:
Dioecious
Inflorescence type:
Female
Inflorescence size:
Female infl. length (mm):
23.8
Female infl. diameter (mm):
9.7
Female infl. stalk length (mm):
14.4
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):
8.7
Infructescence:
Fruit weight (g):
5.7
Infructescence length (mm):
38.9
Infructescence width (mm):
17.3
Length of peduncle:
Medium
Infructescence colour:
Reddish Black
Taste:
Sweet
Infructescence shape:
Cylindric

Phenological descriptors

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

Growth and yield attributes

Vigour:
Lenght (cm):
150
Number of lateral shoots:
n.d.
Lenght of internode (cm):
3.5
Leaf No./meter:
Weight of 100 fresh leaves (g):