VARIETAL NAME: 'Sterile'
Taxonomical and basic information
Varietal name:
'Sterile'
Identification/ Accession n.:
IT23_00503
Ingroup:
Morus alba s.l.
Species:
M. alba
Origin:
unknown
Obtained:
former Sericulture Station of Ascoli Piceno (IT), 1985
Morphological characteristics
Trunk:
Trunk circumference (cm):
Trunk colour:
Light brownish-grey
Shoots:
Colour of one-year old shoot:
Greenish brown
Lenticel density:
Sparse
Lenticel shape:
Oval
Buds:
Bud shape:
Medium triangular
Bud colour:
Yellowish brown
Bud size:
small
Leaves:
Phyllotaxis:
Leaf shape:
Simple
Average leaf size: length (cm):
10.7
Average leaf size: width (cm)
8.9
Leaf size ratio:
Low (<1.2 broad leaves)
Petiole size (cm):
3.6
Petiole range:
Medium (21-40mm)
Shape of leaf base:
Retuse to truncate
Shape of leaf apex:
Acute
Leaf blade tip:
Absent
Leaf blade margin:
Serrate
Hairiness:
Glabrous
Glossiness:
Glossy
Reproductive structures
Sexual dimorphisem:
Inflorescence type:
Inflorescence size:
Female infl. length (mm):
Female infl. diameter (mm):
Female infl. stalk length (mm):
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):
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):
83.1
Number of lateral shoots:
0.2
Lenght of internode (cm):
3.9
Leaf No./meter:
27.15
Weight of 100 fresh leaves (g):