Descriptor: 065 Leaf: degree of resistance to Plasmopara (065 LEAF: DEGREE OF RESISTANCE)

Definition:

Extension of infected mildew patches on all of 4-6 vines(i.e.4-6 replication) has to be assessed, if possible about 3 weeks after begin of flowering.

Crop:

Vitis, V.vinifera x

Category:

Biology descriptors

Status:

Crop Germplasm Committee approved

Data Type:

Alpha/numeric descriptor

Maximum Length:

Responsible Site:

SYSTEM (SYS)

Studies or environments

2003 Mendel Agricultural and Forestry University, Fac. of Horticulture

47 Accessions
2004 Mendel Agricultural and Forestry University, Fac. of Horticulture

21 Accessions
2005 Mendel Agricultural and Forestry University, Fac. of Horticulture (2)

16 Accessions
2007 Mendel Agricultural and Forestry University, Fac. of Horticulture (2)

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

3 Accessions
2009 AMPELOS a.s.

2 Accessions
2009 Mendel Agricultural and Forestry University, Fac. of Horticulture (3)

6 Accessions
2010 Mendel Agricultural and Forestry University, Fac. of Horticulture (2)

15 Accessions
2011 Mendel Agricultural and Forestry University, Fac. of Horticulture (3)

10 Accessions
2012 AMPELOS a.s.

1 Accessions
2015 AMPELOS

2 Accessions
2015 Mendel University Brno, Faculty of Horticulture - Vitis

7 Accessions
2016 Mendel University Brno, Faculty of Horticulture - Vitis

15 Accessions
2017 Mendel University Brno, Faculty of Horticulture - Vitis

15 Accessions
2018 Mendel University Brno, Faculty of Horticulture - Vitis

15 Accessions
2019 Mendel University in Brno, Faculty of Horticulture_Salvia

15 Accessions
2020 Mendel University Brno, Faculty of Horticulture - VITIS

20 Accessions
2021 Mendel University Brno, Faculty of Horticulture - VITIS

17 Accessions
2022 Mendel University Brno, Faculty of Horticulture - VITIS

20 Accessions
2023 Mendel University Brno, Faculty of Horticulture - VITIS

15 Accessions
2024 Mendel University Brno, Faculty of Horticulture - VITIS

16 Accessions

Distribution of Values for 065 Leaf: degree of resistance to Plasmopara (065 LEAF: DEGREE OF RESISTANCE)

Code	Definition	Number of Accessions
3	low vast, not limited attacked patches-very strong fungus fructification-numerous mycelia -leaf drop not as early as with note 1	1
5	medium limited attacked patches 1-2 cm in diameter-more or less severe fungus fructification-irregular formation of mycelia	52
7	high less necrotic attacked patches-less fructification-few mycelia	142
9	very high punctueted necroses or no symptoms, neither fructification nor mycelium	13