Table grape rootstocks in South Africa

Summary of rootstock characteristics Several publications and online rootstock selection applications are available which describe the benefits of grapevine rootstocks. Table 4 was compiled from the literature (publications are listed in the list of references), results obtained from rootstock trials undertaken by ARC Infruitec-Nietvoorbij, as well as from observations made in the rootstock collection and experimental blocks.

TABLE 4 (a) & (b). Summary of characteristics of the most important rootstocks used for table grape production.

TABLE 4a.

TOLERANCE

Dagger nematode

Ring nematode Phylloxera Phytophthora Crown gall

Rootstock Root-knot nematode

Ramsey

5

3 3 1 1 3

4 5

5 2 1 1 5 5 2 1 5

1 2 2 1 1 1 1

R 110

3.5 3.5 3.5

P 1103

4.5 4.5

KEY

R 99

1

US 8-7

3

4 4

4 Very good 5 Excellent

143 B Mgt

4 1

4 1 1 1 1 2

Ru 140

3 3 3 3

3 Good 1 Poor 2 Fair

SO4

3.5 4.5 3.5 3.5

3

Dog Ridge Freedom Harmony

1 1 2

3 3

2

TABEL 4b.

ADAPTABILITY

Rootstock Wetness

Saline soil

Drought

Lime

Vigour grafted

Ramsey

4

4

5

3

5 4

R 110

1.5

3

4.5

3.5 3.5

P 1103

5 1

1.5

4 1

4.5 3.5

R 99

3

4

KEY

US 8-7

3

3.5

3.5

3

4 2

3 Medium 4 Good 5 Very good

143 B Mgt

2 1 4 5

2

2 1 1 5

Ru 140

3

5 4

3.5

SO4

1

4

Dog Ridge Freedom Harmony

4.5

1.5

4.5 2.5

1 Poor 2 Fair

3 3

1 2

3

3 3

2.5

2

44 Table Grape Rootstocks in South Africa