Blackleg (Leptosphaeria maculans) Severity and Yield Loss in Canola in Alberta, Canada
Abstract
:1. Introduction
2. Results
2.1. Cultivar Resistance and Blackleg of Canola
2.2. Foliar Fungicide Application and Blackleg
3. Discussion
4. Materials and Methods
4.1. Cultivar Resistance and Blackleg of Canola
4.2. Foliar Fungicide Application and Blackleg
4.3. Data Analysis
5. Conclusions
Acknowledgments
Author Contributions
Conflicts of Interest
References
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Sites/Years | Canola Cultivar/Hybrid | Median Disease Rating | Mean Rank (Ri) | Estimated Relative Effect (pi) | SE | Confidence Interval (95%) for the Estimated Relative Effect | |
---|---|---|---|---|---|---|---|
Lower | Upper | ||||||
CDCN and Namao, 2013 and 2014 | 46S53RR | 1.0 | 25.73 | 0.35041 | 0.028 | 0.30389 | 0.40557 |
1950RR | 1.0 | 33.90 | 0.46383 | 0.042 | 0.39920 | 0.53134 | |
Westar | 2.0 | 49.88 | 0.68576 | 0.049 | 0.60437 | 0.74412 | |
CDCN and Namao, 2015 | Invigor 5440 | 1.0 | 5.13 | 0.28906 | 0.066 | 0.25906 | 0.39010 |
Westar | 2.0 | 11.88 | 0.71094 | 0.058 | 0.60990 | 0.74094 |
Sites/Years | Canola Cultivar/Hybrid | Resistance | Pods Plant−1 | Yield t·ha−1 |
---|---|---|---|---|
1 CDCN and Namao, 2013 and 2014 | 46S53RR | R | 285 a | 2.66 a |
1950RR | MR | 202 b | 2.21 a | |
Westar | S | 137 c | 1.21 b | |
SE | 14.67 | 0.13 | ||
2 CDCN and Namao, 2015 | Invigor 5440 | MR | 271 a | 1.87 a |
Westar | S | 150 b | 0.82 b | |
SE | 7.59 | 0.08 |
Application Timing | Plants Row−1 | Pods Plant−1 | Yield t·ha−1 |
---|---|---|---|
SS | 48 b | 153 bc | 2.64 a |
SS + EFS | 51 ab | 177 ab | 2.68 a |
SS + EFS+ LFS | 54 a | 207 a | 2.69 a |
Untreated control | 37 c | 128 c | 2.03 b |
SE | 5 | 33 | 0.54 |
Application Timing | Median Disease Rating | Mean Rank (Ri) | Estimated Relative Effect (pi) | SE | Confidence Interval (95%) for the Estimated Relative Effect | |
---|---|---|---|---|---|---|
Lower | Upper | |||||
SS | 1.5 | 17.00 | 0.51563 | 0.181 | 0.37590 | 0.65114 |
SS + EFS | 1.0 | 15.13 | 0.45703 | 0.166 | 0.32757 | 0.59778 |
SS + EFS+ LFS | 1.0 | 10.31 | 0.30664 | 0.134 | 0.21408 | 0.44832 |
Untreated control | 2.0 | 23.56 | 0.72070 | 0.325 | 0.57514 | 0.80638 |
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Hwang, S.-F.; Strelkov, S.E.; Peng, G.; Ahmed, H.; Zhou, Q.; Turnbull, G. Blackleg (Leptosphaeria maculans) Severity and Yield Loss in Canola in Alberta, Canada. Plants 2016, 5, 31. https://doi.org/10.3390/plants5030031
Hwang S-F, Strelkov SE, Peng G, Ahmed H, Zhou Q, Turnbull G. Blackleg (Leptosphaeria maculans) Severity and Yield Loss in Canola in Alberta, Canada. Plants. 2016; 5(3):31. https://doi.org/10.3390/plants5030031
Chicago/Turabian StyleHwang, Sheau-Fang, Stephen E. Strelkov, Gary Peng, Hafiz Ahmed, Qixing Zhou, and George Turnbull. 2016. "Blackleg (Leptosphaeria maculans) Severity and Yield Loss in Canola in Alberta, Canada" Plants 5, no. 3: 31. https://doi.org/10.3390/plants5030031