‘SI-SP/MB 303’

VARIETAL NAME: 'SI-SP/MB 303'

Taxonomical and basic information

Varietal name:

'SI-SP/MB 303'

Identification/ Accession n.:

Ingroup:

M. alba s.l.

Species:

M. alba

Origin:

Dravska ravan, 46,445965_°N; 15,764567_°E

Obtained:

In situ field inventory

Morphological characteristics

Trunk:

Trunk circumference (cm):

340 cm (in situ)

Trunk colour:

Light brownish-grey

Shoots:

Colour of one-year old shoot:

Greenish brown

Lenticel density:

High

Lenticel shape:

Round

Buds:

Bud shape:

Broad triangular

Bud colour:

Dark brown

Bud size:

Small

Leaves:

Phyllotaxis:

Alternate distichous

Leaf shape:

Simple and Lobed

Average leaf size: length (cm):

9,95

Average leaf size: width (cm)

9,00

Leaf size ratio:

Medium (1.3-1.5)

Petiole size (cm):

3.6

Petiole range:

Medium (21-40mm)

Shape of leaf base:

Cordate

Shape of leaf apex:

Obtuse

Leaf blade tip:

Acuminate

Leaf blade margin:

Serrate

Hairiness:

Glabrous

Glossiness:

Glossy

Reproductive structures

Sexual dimorphisem:

Dioecious

Inflorescence type:

Female

Inflorescence size:

Female infl. length (mm):

6.2

Female infl. diameter (mm):

4.6

Female infl. stalk length (mm):

5.6

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):

0.8

Infructescence length (mm):

15.2

Infructescence width (mm):

10.5

Length of peduncle:

Short

Infructescence colour:

Yellowish white

Taste:

Sweet

Infructescence shape:

Ellipsoid

Phenological descriptors

Date of bud burst (week):

Flowering date (week):

Date of infructescence ripening (week):

Medium

Uniformity of infructescence ripening:

Abundant autumn colouring (week):

Growth and yield attributes

Vigour:

Lenght (cm):

129.4

Number of lateral shoots:

n.d.

Lenght of internode (cm):

6.0

Leaf No./meter:

Weight of 100 fresh leaves (g):

4.9