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Table 3 Results of two seasons of field-based powdery mildew evaluations with selected accessions

From: Identification of mildew resistance in wild and cultivated Central Asian grape germplasm

  

A

B

C

  

Genotype

Date

Bed

Genotype

Date

Bed

Genotype

Date

Bed

Year

Leaf

Numb.parm.

64

1

2

43

1

4

8

1

4

1

 

DF

64

1

2

43

1

4

8

1

4

1

 

L-R χ2

809.51

11.10

2.70

528.44

21.78

5.16

249.31

0.01

7.71

12.19

 

P-value

<0.0001*

0.0009*

0.2594

<0.0001*

<0.0001*

0.2715

<0.0001*

0.9094

0.1029

0.0005*

Cane

Numb.parm.

64

1

2

43

1

4

8

1

4

1

 

DF

64

1

2

43

1

4

8

1

4

1

 

L-R χ2

744.91

16.05

4.30

290.99

412.48

1.97

137.04

22.09

1.80

64.62

 

P-value

<0.0001*

<0.0001*

0.1163

<0.0001*

<0.0001*

0.7416

<0.0001*

<0.0001*

0.7731

<0.0001*

  1. Control plants of known resistant and susceptible accessions were used for both years. (A) Results for all accessions tested in 2009; (B) results for accessions tested in 2010; (C) Comparison of accessions that were common to both years. The number of field nursery beds and genotypes are noted.
  2. *Indicates statistically significant P values.