Table 2.  Virulence  spectra of mildew  isolates used in the experiments

 

Isolate No.

Identity

Origin

Va1

Va3

Va6

Va7

Va9

Va12

Va13

Vg

VLa

Vk1

VAb

PV 1

HL-3

Laboratory, Germany* 1979

0

0

+

0

0

0

0

+

0

0

0

PV 3

C47A-7

Air spora, Moravia (CR), 1999

+

+

+

+

+

+

+

+

+

+

+

PV 4

C47B-3

Air spora, Moravia (CR), 1999

+

0

+

+

0

+

+

+

+

0

0

PV 26

C51B-1

Air spora, Moravia (CR), 1999

+

0

+

+

+

+

0

+

+

0

+

PV 32

C54-7

Air spora, Lower Austria, 1999

0

0

+

+

+

+

+

+

+

+

+

PV 41

BR99/8/22

Air spora, Cambridge, UK, 1999

+

0

+

+

0

+

0

+

+

+

+

PV 42

BR99/3/61

Air spora, Cambridge, UK, 1999

0

0

0

+

0

+

0

+

+

+

+

PV 43

B98/37/4

cv.  Derkado, NIAB Cambridge, UK, 1998

+

0

0

+

0

+

0

+

+

+

+

PV 44

B99/127/1

cv.  Century, NIAB Cambridge, UK, 1999

+

0

0

+

+

+

0

+

+

+

+

CC/1

CC/1

Cambridge, UK, 1970   

0

0

0

0

0

+

0

0

0

0

0

PV 47

C63/65

Air spora ,    Moravia (CR), 2001

0

1)

0

1)

0

1)

+

+

1)

1)

1)

            1) not determined

            * Schwarzbach, (1979)