VARIETAL NAME: 'Kokusō 21'
Taxonomical and basic information
Varietal name:
'Kokusō 21'
Identification/ Accession n.:
IT23_00552
Ingroup:
Morus indica s.l.
Species:
M. indica (syn. M. latifolia)
Origin:
Japan
Obtained:
former Sericulture Station of Ascoli Piceno (IT), 1985
Morphological characteristics
Trunk:
Trunk circumference (cm):
Trunk colour:
Greyish brown
Shoots:
Colour of one-year old shoot:
Greyish brown
Lenticel density:
Medium
Lenticel shape:
Elliptical
Buds:
Bud shape:
Medium triangular
Bud colour:
Medium brown
Bud size:
medium
Leaves:
Phyllotaxis:
Leaf shape:
Simple
Average leaf size: length (cm):
15.9
Average leaf size: width (cm)
14.5
Leaf size ratio:
Low (<1.2 broad leaves)
Petiole size (cm):
4.9
Petiole range:
Long (41-70 mm)
Shape of leaf base:
Cordate
Shape of leaf apex:
Acute
Leaf blade tip:
Acuminate
Leaf blade margin:
Crenate
Hairiness:
Glabrous
Glossiness:
Glossy
Reproductive structures
Sexual dimorphisem:
Monoecious
Inflorescence type:
female&male&polygamous
Inflorescence size:
Female infl. length (mm):
9.3
Female infl. diameter (mm):
4.7
Female infl. stalk length (mm):
9.4
Male infl. length (mm):
22.0
Male infl. diameter (mm):
5.5
Male infl. stalk length (mm):
10.6
Polygamous infl. length (mm):
Polygamous infl. diameter (mm):
Polyg. infl. stalk length (mm):
Infructescence:
Fruit weight (g):
Infructescence length (mm):
Infructescence width (mm):
Length of peduncle:
Infructescence colour:
Taste:
Infructescence shape:
Phenological descriptors
Date of bud burst (week):
Flowering date (week):
Date of infructescence ripening (week):
Uniformity of infructescence ripening:
Abundant autumn colouring (week):
Growth and yield attributes
Vigour:
Lenght (cm):
63.3
Number of lateral shoots:
n.d.
Lenght of internode (cm):
4.0
Leaf No./meter:
Weight of 100 fresh leaves (g):