Table 1. Virulence frequencies (%) of Puccinia coronata isolates from Israel in 1996 and 1998 to the old international set of  crown rust differentials.

 

 

Differential

Menashe, 1996

A. sativa1

Tel Aviv, 1996

A. sterilis

Menashe, 1998

A. sativa

Anthony

76

68

98

Victoria

100

100

100

Appler

88

67

100

Bond

44

16

100

Landhafer

52

58

98

Santa Fe

64

79

98

Ukraine

68

84

93

Trispernia

100

89

93

Bondvic

96

89

100

Saia

8

5

22

Number of isolates

25

18

42

Mean complexity2

7.0

6.6

9.0

 

1 Host from which isolates of P. coronata were collected.

 

2 Mean number of virulences identified per isolate.