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TABLE 1. DISEASE RESISTANCE
OF PLUM CULTIVARS IN EXPERIMENTAL PLANTINGS AT |
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Disease index1 |
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|
|
Bacterial fruit spot |
Bacterial leaf spot |
Bacterial canker |
Black knot |
Brown rot |
Plum leaf scald |
|
AU-Rosa |
0 |
0 |
0 |
0 |
0 |
0 |
|
AU-Rubrum |
0 |
0 |
0 |
5 |
2 |
1 |
|
AU-Amber |
0 |
0 |
0 |
1 |
2 |
0 |
|
AU-Producer |
0 |
0 |
0 |
0 |
2 |
1 |
|
AU-Roadside |
0 |
0 |
0 |
0 |
2 |
1 |
|
Bruce |
0 |
0 |
0 |
0 |
4 |
4 |
|
Crimson |
0 |
0 |
0 |
0 |
1 |
3 |
|
Homeside |
0 |
0 |
1 |
1 |
3 |
1 |
|
Methley |
3 |
5 |
5 |
5 |
3 |
4 |
|
Morris |
1 |
2 |
2 |
5 |
2 |
2 |
|
Ozark Premier |
0 |
1 |
1 |
1 |
3 |
4 |
|
Purple |
0 |
0 |
0 |
0 |
3 |
5 |
|
Santa Rosa |
5 |
5 |
5 |
0 |
3 |
5 |
|
1Disease index: 0 = 0,1 = 1-10,2 = 21-40, 3 = 41-60, 4 = 61-80, and 5 = 91-100 percent of fruit, leaves, and trees infected. Ratings were taken in years when injury from diseases was severe on susceptible cultivars. |
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