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Main characteristics of the Persian walnut accessions (by institution)

DESCRIPTOR SCALES FOR JUGLANS REGIA CULTIVARS

I Type of maintenance

1 in the field
2 in tissue culture
3 pollen
4 seed

II Cherry leaf roll virus (CLRV) status

1 not tested (unknown)
2 CLRV free
3 CLRV present

III Type of fruiting

1 terminal bearing
2 intermediate
3 lateral bearing

IV Time of bud break
(number of days compared to Franquette)

1 very early (>-26)
2 early (-21-26)
3 early-medium (-15-20)
4 medium (-9-14)
5 medium-late (-3-8)
6 late (-2+3)
7 very late (>+3

V Dichogamy

2 protandrous
4 homogamous
6 protogynous

VI Nut size

1 very small < 8,5 gr
2 small 8,5 - 10,5 gr
3 medium 10,5 - 12,5 gr
4 big 12,5 - 14,5 gr
5 very big > 14,5 gr

VII Kernel percentage

1 very low < 40 %
3 low 40 - 44 %
5 medium 45 - 49 %
7 high 50 - 55 %
9 very high > 55 %

VIII Kernel quality

2 bad
4 medium
6 good

IX Winter hardiness

3 low
5 moderate
7 high

X Blight susceptibility
(Xanthomonas campestris pv. Juglandis)

1 nul (resistant)
2 low
3 moderate
4 high
5 very high

XI Anthracnosis susceptibility
(Gnomonia leptostyla)

1 nul (resistant)
3 low
5 moderate
7 high
9 very high

BELARUS

Sender Institution:

Belarusian Research Institution for Fruit Growing; 223013 Samokhvalovitchy Minsk Region, Belarus Tel: 375 (017) 506 61 49; Fax: 375 (017) 506 61 40

Curator:

LOIKO R.

1) WALNUT CULTIVARS LIST (JUGLANS REGIA L.)

Name

Synonym

Origin

Type of maintenance

CLRV status

Type of fruiting

Time of bud break

Dichogamy

Nut size

Kernel percentage

Kernel quality

Winter hardiness

Blight susceptibility

Anthrac. susceptibility

Remarks

Kazak

Cazacu

Moldova

1

1








Young tree

Kuklenski

-

Bulgaria

1

1

3

3

6

3

7

4

3

3

3

Kostiuzenski

-

Moldova

1

1








Young tree

2) WALNUT SELECTIONS LIST (JUGLANS REGIA l.F. FERTILIS PETZ ET KIRCH)

Name

Synonym

Origin

Type of maintenance

CLRV status

Type of fruiting

Time of bud break

Dichogamy

Nut size

Kernel percentage

Kernel quality

Winter hardiness

Blight susceptibility

Anthrac. susceptibility

Remarks

11-86-S

-

Belarus

1

1

5

5

2

2

1

4

7

-

5

Remontant type of flowering. Very hardy to low temperatures

37-86-S

-

Belarus

1

1

1

5

4

3

2

4

7

-

5

Remontant type of flowering. Very hardy to low temperatures

Additional information: Besides, in Samokhvalovitchy, we have more than 200 seedlings from these forms.

3) WALNUT SELECTIONS LIST (JUGLANS REGIA L.)

Name

Synonym

Origin

Type of maintenance

CLRV status

Type of fruiting

Time of bud break

Dichogamy

Nut size

Kernel percentage

Kernel quality

Winter hardiness

Blight susceptibility

Anthrac. susceptibility

Remarks

1-69-P

-

Belarus

1

1

1

5

4

3

3

4

7

-

5

Very hardy to low temperatures (-35-37°C). Tendency to apomixis

1-78-P

-

Belarus

1

1

1

5

4

9

3

4

7

-

5

Very hardy to low temperatures (-35-37°C).

1-90-P

-

Belarus

1

1

1

5

4

7

1

4

7

-

5

Very hardy to low temperatures (-35-37°C).

2-78-P

-

Belarus

1

1

1

5

4

3

3

4

7

-

5

Very hardy to low temperatures (-35-37°C).

3-1-76-S

-

Belarus

1

1

1

5

4

3

2

4

7

-

5

Very hardy to low temperatures (-35-37°C). Tendency to apomixis

6-1-76-S

-

Belarus

1

1

1

5

4

2

4

4

7

-

5

Very hardy to low temperatures (-35-37°C). Apomictic

8-68-P

-

Belarus

1

1

1

5

4

3

3

4

7

-

5

Very hardy to low temperatures (-35-37°C).

14-1-76-S

-

Belarus

1

1

1

5

4

3

2

4

7

-

5

Very hardy to low temperatures (-35-37°C). Tendency to apomixis

62-2-P

-

Belarus

1

1

1

5

4

9

1

4

5

-

5

Very hardy to low temperatures (-35-37°C).

Additional information: Besides, in Belarus there are more than 50 000 seedling trees mainly in home gardens, 600 young seedlings in Samochvalovitchy are investigated in a variety breeding programme.

BULGARIA

Sender Institution:

Fruit Growing Institute, Ostromila 12, Plovdiv 4004, Bulgaria Tel: 359.32.670.157, 770.811; Fax: 359.32.670.808; e-mail: [email protected]

Curator:

KORNOVA K.

WALNUT CULTIVARS LIST (JUGLANS REGIA L.)

Name

Synonym

Origin

Type of maintenance

CLRV status

Type of fruiting

Time of bud break

Dichogamy

Nut size

Kernel percentage

Kernel quality

Winter hardiness

Blight susceptibility

Anthrac. susceptibility

Remarks

Adams 10

-

USA

1

1

3

7

2

7

5

6

5

3

3

Amigo

-

USA

1

1








Introduced from Greece Young tree

Chandler

-

USA

1

1








Introduced from Greece Young tree

Chandler

-

USA

1

1








Introduced in 1999 from Italy.

Cheinovo

Sheinovo

Bulgaria

1

1

1

7

2

5

7

4

5

3

3

The latest blooming Bulgarian variety

Chico

-

USA

1

1








Introduced from Greece Young tree

Dryanovski

Drjanovski

Bulgaria

1

1

1

3

6

9

7

6

3

3

Franquette

-

France

1

1

1

7

2

5

5

4

5

3

3

Geisenheim

-

Germany

1

1

1

9

6

5

5

4

7

3

3

Gustine

-

USA

1

1








Introduced from Greece Young tree

Hartley

-

USA

1

1





3

Susceptible to frosts

Ideal

-

Moldova

1

1








Young tree

IP-R1

-

Bulgaria

1

1

1

1

6

7

5

4

3

3

3

The tree is dwarf (2m high)

Izvor 10

-

Bulgaria

1

2

5

5

6

3

7

6

5

3

3

Main Bulgarian variety

Lara

-

France

1

1








Introduced in 1999 from Italy

Mayette

-

France

1

1








Young tree

Midland

-

USA

1

1








Introduced from Greece Young tree

Pedro

-

USA

1

1

3

7

2

7

5

6

5

3

3

Perushtinski

-

Bulgaria

1

1

1

5

2

3

7

6

3

3

3

Pioneer

-

USA

1

1








Introduced from Greece Young tree

Raikov

-

Bulgaria

1

1

1

5

6

7

7

6

3

3

3

Big and nice nuts

Scharsch-Franquette

-

USA

1

1








Introduced from Greece Young tree

Sharkey

-

USA

1

1

3

2



5

3

3

Young tree

Sibisel

Sibishel

Romania

1

1

1

7

2

7

5

4

5

3

3

Silistrenski

-

Bulgaria

1

1

3







Pollinator of Izvor 10

Slivenski

-

Bulgaria

1

1

1

3

2

7

7

4

3

5

3

Excellent kernel taste

Tehama

-

USA

1

1








Introduced from Greece Young tree

Vina

-

USA

1

1








Introduced from Greece Young tree

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