Descriptor: 018 Mature leaf: blistering of upper side (018 MATURE LEAF: BLISTERING OF)

Definition:

Observation from berry set to veraison. Blisters between the veins of ultimate order have to be assessed. Mean value of 10 mature leaves above the clusters at the medium third of shoot (N1-N3=main veins).

Crop:

Vitis vinifera L.

Category:

Morphological descriptors

Status:

Crop Germplasm Committee approved

Data Type:

Alpha/numeric descriptor

Maximum Length:

Responsible Site:

SYSTEM (SYS)

Studies or environments

2000 AMPELOS a.s.

20 Accessions
2000 Research Inst. of Crop Production Research Station of Viticulture

28 Accessions
2002 Research Inst. of Crop Production Research Station of Viticulture

3 Accessions
2002 Research Inst. of Crop Production Research Station of Viticulture (2)

1 Accessions
2003 AMPELOS a.s.

28 Accessions
2003 Research Inst. of Crop Production Research Station of Viticulture

30 Accessions
2006 AMPELOS a.s.

28 Accessions
2006 Research Inst. of Crop Production Research Station of Viticulture

22 Accessions
2008 Mendel Agricultural and Forestry University, Fac. of Horticulture (2)

11 Accessions
2009 AMPELOS a.s.

18 Accessions
2009 Research Inst. of Crop Production Research Station of Viticulture

30 Accessions
2012 AMPELOS a.s.

30 Accessions
2012 Research Inst. of Crop Production Research Station of Viticulture

32 Accessions
2015 AMPELOS, ŠSV ZNOJMO

27 Accessions
2015 Research Inst. of Crop Production Research Station of Viticulture

28 Accessions
2018 AMPELOS, ŠSV ZNOJMO, s.r.o.

31 Accessions
2018 Research Inst. of Crop Production Research Station of Viticulture

29 Accessions
2021 AMPELOS, SSV ZNOJMO, s.r.o.

31 Accessions
2021 Research Inst. of Crop Production Research Station of Viticulture

31 Accessions

Distribution of Values for 018 Mature leaf: blistering of upper side (018 MATURE LEAF: BLISTERING OF)

Code	Definition	Number of Accessions
1	absent or very weak (Rupestris du Lot, Garnacha Tinta B)	65
2	weak (Chrupka bílá B, Garganega B)	170
3	medium (Mueller-Thurgau B, Semillon B)	161
4	strong (Merlot N,Ryzlink rýnský B)	41
5	very strong (V. amurensis)	7