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Table 4 Best choice versus actual uptake of varieties in the AAC (expressed as a percentage of varieties recorded)*

From: An interdisciplinary method for assessing IPM potential: case study in Scottish spring barley

Disease rating (1–9)

2015

2014

Powdery mildew

Scald**

RLS

Powdery mildew

Scald

RLS

3

    

41%

 

4

 

83%

  

39%

 

5

   

14%

 

14%

6

9%

17%

71%

  

51%

7

    

20%

36%

8

6%

 

29%

44%

  

9

86%

  

42%

  

AAC: Highly resistant***

92%

0%

29%

86%

20%

36%

AAC: Below Best choice****

15%

83%

0%

58%

80%

65%

Survey: Highly resistant

   

90%

31%

22%

Survey: Below best choice

   

68%

69%

78%

 

2013

2012

2011

Disease rating (1–9)

Powdery mildew

Scald

RLS

Powdery mildew

Scald

RLS

Powdery mildew

Scald

3

 

37%

  

23%

  

19%

4

 

41%

  

72%

 

1%

66%

5

13%

 

14%

21%

 

75%

23%

1%

6

 

4%

51%

  

26%

  

7

 

18%

34%

 

2%

 

3%

9%

8

55%

  

53%

2%

 

44%

6%

9

32%

  

26%

  

29%

 

AAC: Highly resistant

87%

18%

34%

79%

4%

0%

76%

15%

AAC: Below Best choice

68%

82%

65%

74%

97%

75%

71%

95%

Survey: Highly resistant

90%

23%

23%

76%

18%

9%

70%

28%

Survey: Below best choice

75%

77%

77%

76%

90%

5%

78%

100%

 

2010

2009

Disease rating (1–9)

Powdery mildew

Scald

Powdery mildew

Scald

3

 

8%

 

8%

4

 

61%

 

38%

5

47%

 

41%

12%

6

 

7%

 

10%

7

14%

17%

26%

26%

8

14%

7%

9%

6%

9

25%

 

24%

 

AAC: Highly resistant

53%

24%

59%

32%

AAC: Below best choice

75%

93%

76%

94%

  1. *Bold text indicates the rating of the ‘best’ choice variety for that year/disease combination (this will be the highest rated variety which has full recommendation for distilling in the Recommended List)
  2. ** Note: Scald is presented as ‘Rhynchosporium’ and RLS is presented as ‘Ramularia’ in the Recommended List; both have been updated in this table in line with the nomenclature used throughout this paper
  3. *** ‘Highly resistant’ rows show the percentage of varieties for that year/disease combination with a disease resistance rating of 7 or more (on the standard 1–9 scale)
  4. *** ‘Below best choice’ rows show the percentage of varieties for that year/disease combination which have a disease resistance rating below the maximum possible for that year/disease combination. This is of particular value for those years/disease combinations where no varieties have a resistance rate of 7 or more, such as for scald and RLS in 2015