Stability of resistance to Phytophthora infestans in potato: an international evaluation
Ten institutions in nine countries joined together to test the stability of resistance of 14 potato genotypes to the oomycete pathogen Phytophthora infestans in three separate trials. Seven of the genotypes were tested in one trial involving seven locations, and all 14 were tested in two subsequent...
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Oxford, UK: Blackwell Science Ltd ; 2005 |
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2005 ; Blackwell Publishing Journal Backfiles 1879-2005 |
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In: Plant pathology - Oxford [u.a.] : Wiley-Blackwell, 1952, 54(2005), 3, Seite 0 |
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volume:54 ; year:2005 ; number:3 ; pages:0 |
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| DOI / URN: |
10.1111/j.1365-3059.2005.01187.x |
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| 520 | |a Ten institutions in nine countries joined together to test the stability of resistance of 14 potato genotypes to the oomycete pathogen Phytophthora infestans in three separate trials. Seven of the genotypes were tested in one trial involving seven locations, and all 14 were tested in two subsequent trials, each involving eight locations. Stability of resistance was tested with nonparametric tests and with an additive main effects and multiplicative interaction (AMMI) model. Overall, resistance to P. infestans was robust; resistant genotypes were consistently resistant in all locations and trials. The nonparametric analysis indicated that specific genotypes were basically stable across sites for resistance. In trial 3, the Z statistic for overall stability was significant at 0·05%, indicating a significant level of interaction across the trial, but there were no significant interactions for specific genotypes in this trial. The genotype by environment (G × E) effect of the AMMI model was highly significant in both trials, but the mean square of G × E was less than 10% of the genotype effect in each trial. The first two principal components (PCA1 and PCA2) of the AMMI analyses together explained 75 and 80% of the interaction effects in trials 2 and 3, respectively. Based on both nonparametric and AMMI analyses, Ecuador and Argentina were locations of relatively high interaction effects for both trials 2 and 3, although in Ecuador this interaction was not associated with any particular potato genotype. Other locations also had high interaction effects, but these occurred in only one trial. The genotypes Chata Blanca and, to a lesser extent, Torridon were relatively unstable in trials 2 and 3, but in the case of Torridon, resistant, this did not represent a significant loss of resistance. | ||
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| 700 | 1 | |a Chacón, M. G. |4 oth | |
| 700 | 1 | |a Kirk, H. G. |4 oth | |
| 700 | 1 | |a Huarte, M. A. |4 oth | |
| 700 | 1 | |a Van Damme, M. |4 oth | |
| 700 | 1 | |a Distel, S. |4 oth | |
| 700 | 1 | |a Mackay, G. R. |4 oth | |
| 700 | 1 | |a Stewart, H. E. |4 oth | |
| 700 | 1 | |a Lowe, R. |4 oth | |
| 700 | 1 | |a Duncan, J. M. |4 oth | |
| 700 | 1 | |a Mayton, H. S. |4 oth | |
| 700 | 1 | |a Fry, W. E. |4 oth | |
| 700 | 1 | |a Andrivon, D. |4 oth | |
| 700 | 1 | |a Ellissèche, D. |4 oth | |
| 700 | 1 | |a Pellé, R. |4 oth | |
| 700 | 1 | |a Platt, H. W. |4 oth | |
| 700 | 1 | |a MacKenzie, G. |4 oth | |
| 700 | 1 | |a Tarn, T. R. |4 oth | |
| 700 | 1 | |a Colon, L. T. |4 oth | |
| 700 | 1 | |a Budding, D. J. |4 oth | |
| 700 | 1 | |a Lozoya-Saldaña, H. |4 oth | |
| 700 | 1 | |a Hernandez-Vilchis, A. |4 oth | |
| 700 | 1 | |a Capezio, S. |4 oth | |
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10.1111/j.1365-3059.2005.01187.x doi (DE-627)NLEJ243794673 DE-627 ger DE-627 rakwb Stability of resistance to Phytophthora infestans in potato: an international evaluation Oxford, UK Blackwell Science Ltd 2005 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Ten institutions in nine countries joined together to test the stability of resistance of 14 potato genotypes to the oomycete pathogen Phytophthora infestans in three separate trials. Seven of the genotypes were tested in one trial involving seven locations, and all 14 were tested in two subsequent trials, each involving eight locations. Stability of resistance was tested with nonparametric tests and with an additive main effects and multiplicative interaction (AMMI) model. Overall, resistance to P. infestans was robust; resistant genotypes were consistently resistant in all locations and trials. The nonparametric analysis indicated that specific genotypes were basically stable across sites for resistance. In trial 3, the Z statistic for overall stability was significant at 0·05%, indicating a significant level of interaction across the trial, but there were no significant interactions for specific genotypes in this trial. The genotype by environment (G × E) effect of the AMMI model was highly significant in both trials, but the mean square of G × E was less than 10% of the genotype effect in each trial. The first two principal components (PCA1 and PCA2) of the AMMI analyses together explained 75 and 80% of the interaction effects in trials 2 and 3, respectively. Based on both nonparametric and AMMI analyses, Ecuador and Argentina were locations of relatively high interaction effects for both trials 2 and 3, although in Ecuador this interaction was not associated with any particular potato genotype. Other locations also had high interaction effects, but these occurred in only one trial. The genotypes Chata Blanca and, to a lesser extent, Torridon were relatively unstable in trials 2 and 3, but in the case of Torridon, resistant, this did not represent a significant loss of resistance. 2005 Blackwell Publishing Journal Backfiles 1879-2005 |2005|||||||||| area under disease progress curve Forbes, G. A. oth Chacón, M. G. oth Kirk, H. G. oth Huarte, M. A. oth Van Damme, M. oth Distel, S. oth Mackay, G. R. oth Stewart, H. E. oth Lowe, R. oth Duncan, J. M. oth Mayton, H. S. oth Fry, W. E. oth Andrivon, D. oth Ellissèche, D. oth Pellé, R. oth Platt, H. W. oth MacKenzie, G. oth Tarn, T. R. oth Colon, L. T. oth Budding, D. J. oth Lozoya-Saldaña, H. oth Hernandez-Vilchis, A. oth Capezio, S. oth In Plant pathology Oxford [u.a.] : Wiley-Blackwell, 1952 54(2005), 3, Seite 0 Online-Ressource (DE-627)NLEJ243927657 (DE-600)2020845-5 1365-3059 nnns volume:54 year:2005 number:3 pages:0 http://dx.doi.org/10.1111/j.1365-3059.2005.01187.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 54 2005 3 0 |
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10.1111/j.1365-3059.2005.01187.x doi (DE-627)NLEJ243794673 DE-627 ger DE-627 rakwb Stability of resistance to Phytophthora infestans in potato: an international evaluation Oxford, UK Blackwell Science Ltd 2005 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Ten institutions in nine countries joined together to test the stability of resistance of 14 potato genotypes to the oomycete pathogen Phytophthora infestans in three separate trials. Seven of the genotypes were tested in one trial involving seven locations, and all 14 were tested in two subsequent trials, each involving eight locations. Stability of resistance was tested with nonparametric tests and with an additive main effects and multiplicative interaction (AMMI) model. Overall, resistance to P. infestans was robust; resistant genotypes were consistently resistant in all locations and trials. The nonparametric analysis indicated that specific genotypes were basically stable across sites for resistance. In trial 3, the Z statistic for overall stability was significant at 0·05%, indicating a significant level of interaction across the trial, but there were no significant interactions for specific genotypes in this trial. The genotype by environment (G × E) effect of the AMMI model was highly significant in both trials, but the mean square of G × E was less than 10% of the genotype effect in each trial. The first two principal components (PCA1 and PCA2) of the AMMI analyses together explained 75 and 80% of the interaction effects in trials 2 and 3, respectively. Based on both nonparametric and AMMI analyses, Ecuador and Argentina were locations of relatively high interaction effects for both trials 2 and 3, although in Ecuador this interaction was not associated with any particular potato genotype. Other locations also had high interaction effects, but these occurred in only one trial. The genotypes Chata Blanca and, to a lesser extent, Torridon were relatively unstable in trials 2 and 3, but in the case of Torridon, resistant, this did not represent a significant loss of resistance. 2005 Blackwell Publishing Journal Backfiles 1879-2005 |2005|||||||||| area under disease progress curve Forbes, G. A. oth Chacón, M. G. oth Kirk, H. G. oth Huarte, M. A. oth Van Damme, M. oth Distel, S. oth Mackay, G. R. oth Stewart, H. E. oth Lowe, R. oth Duncan, J. M. oth Mayton, H. S. oth Fry, W. E. oth Andrivon, D. oth Ellissèche, D. oth Pellé, R. oth Platt, H. W. oth MacKenzie, G. oth Tarn, T. R. oth Colon, L. T. oth Budding, D. J. oth Lozoya-Saldaña, H. oth Hernandez-Vilchis, A. oth Capezio, S. oth In Plant pathology Oxford [u.a.] : Wiley-Blackwell, 1952 54(2005), 3, Seite 0 Online-Ressource (DE-627)NLEJ243927657 (DE-600)2020845-5 1365-3059 nnns volume:54 year:2005 number:3 pages:0 http://dx.doi.org/10.1111/j.1365-3059.2005.01187.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 54 2005 3 0 |
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10.1111/j.1365-3059.2005.01187.x doi (DE-627)NLEJ243794673 DE-627 ger DE-627 rakwb Stability of resistance to Phytophthora infestans in potato: an international evaluation Oxford, UK Blackwell Science Ltd 2005 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Ten institutions in nine countries joined together to test the stability of resistance of 14 potato genotypes to the oomycete pathogen Phytophthora infestans in three separate trials. Seven of the genotypes were tested in one trial involving seven locations, and all 14 were tested in two subsequent trials, each involving eight locations. Stability of resistance was tested with nonparametric tests and with an additive main effects and multiplicative interaction (AMMI) model. Overall, resistance to P. infestans was robust; resistant genotypes were consistently resistant in all locations and trials. The nonparametric analysis indicated that specific genotypes were basically stable across sites for resistance. In trial 3, the Z statistic for overall stability was significant at 0·05%, indicating a significant level of interaction across the trial, but there were no significant interactions for specific genotypes in this trial. The genotype by environment (G × E) effect of the AMMI model was highly significant in both trials, but the mean square of G × E was less than 10% of the genotype effect in each trial. The first two principal components (PCA1 and PCA2) of the AMMI analyses together explained 75 and 80% of the interaction effects in trials 2 and 3, respectively. Based on both nonparametric and AMMI analyses, Ecuador and Argentina were locations of relatively high interaction effects for both trials 2 and 3, although in Ecuador this interaction was not associated with any particular potato genotype. Other locations also had high interaction effects, but these occurred in only one trial. The genotypes Chata Blanca and, to a lesser extent, Torridon were relatively unstable in trials 2 and 3, but in the case of Torridon, resistant, this did not represent a significant loss of resistance. 2005 Blackwell Publishing Journal Backfiles 1879-2005 |2005|||||||||| area under disease progress curve Forbes, G. A. oth Chacón, M. G. oth Kirk, H. G. oth Huarte, M. A. oth Van Damme, M. oth Distel, S. oth Mackay, G. R. oth Stewart, H. E. oth Lowe, R. oth Duncan, J. M. oth Mayton, H. S. oth Fry, W. E. oth Andrivon, D. oth Ellissèche, D. oth Pellé, R. oth Platt, H. W. oth MacKenzie, G. oth Tarn, T. R. oth Colon, L. T. oth Budding, D. J. oth Lozoya-Saldaña, H. oth Hernandez-Vilchis, A. oth Capezio, S. oth In Plant pathology Oxford [u.a.] : Wiley-Blackwell, 1952 54(2005), 3, Seite 0 Online-Ressource (DE-627)NLEJ243927657 (DE-600)2020845-5 1365-3059 nnns volume:54 year:2005 number:3 pages:0 http://dx.doi.org/10.1111/j.1365-3059.2005.01187.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 54 2005 3 0 |
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10.1111/j.1365-3059.2005.01187.x doi (DE-627)NLEJ243794673 DE-627 ger DE-627 rakwb Stability of resistance to Phytophthora infestans in potato: an international evaluation Oxford, UK Blackwell Science Ltd 2005 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Ten institutions in nine countries joined together to test the stability of resistance of 14 potato genotypes to the oomycete pathogen Phytophthora infestans in three separate trials. Seven of the genotypes were tested in one trial involving seven locations, and all 14 were tested in two subsequent trials, each involving eight locations. Stability of resistance was tested with nonparametric tests and with an additive main effects and multiplicative interaction (AMMI) model. Overall, resistance to P. infestans was robust; resistant genotypes were consistently resistant in all locations and trials. The nonparametric analysis indicated that specific genotypes were basically stable across sites for resistance. In trial 3, the Z statistic for overall stability was significant at 0·05%, indicating a significant level of interaction across the trial, but there were no significant interactions for specific genotypes in this trial. The genotype by environment (G × E) effect of the AMMI model was highly significant in both trials, but the mean square of G × E was less than 10% of the genotype effect in each trial. The first two principal components (PCA1 and PCA2) of the AMMI analyses together explained 75 and 80% of the interaction effects in trials 2 and 3, respectively. Based on both nonparametric and AMMI analyses, Ecuador and Argentina were locations of relatively high interaction effects for both trials 2 and 3, although in Ecuador this interaction was not associated with any particular potato genotype. Other locations also had high interaction effects, but these occurred in only one trial. The genotypes Chata Blanca and, to a lesser extent, Torridon were relatively unstable in trials 2 and 3, but in the case of Torridon, resistant, this did not represent a significant loss of resistance. 2005 Blackwell Publishing Journal Backfiles 1879-2005 |2005|||||||||| area under disease progress curve Forbes, G. A. oth Chacón, M. G. oth Kirk, H. G. oth Huarte, M. A. oth Van Damme, M. oth Distel, S. oth Mackay, G. R. oth Stewart, H. E. oth Lowe, R. oth Duncan, J. M. oth Mayton, H. S. oth Fry, W. E. oth Andrivon, D. oth Ellissèche, D. oth Pellé, R. oth Platt, H. W. oth MacKenzie, G. oth Tarn, T. R. oth Colon, L. T. oth Budding, D. J. oth Lozoya-Saldaña, H. oth Hernandez-Vilchis, A. oth Capezio, S. oth In Plant pathology Oxford [u.a.] : Wiley-Blackwell, 1952 54(2005), 3, Seite 0 Online-Ressource (DE-627)NLEJ243927657 (DE-600)2020845-5 1365-3059 nnns volume:54 year:2005 number:3 pages:0 http://dx.doi.org/10.1111/j.1365-3059.2005.01187.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 54 2005 3 0 |
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10.1111/j.1365-3059.2005.01187.x doi (DE-627)NLEJ243794673 DE-627 ger DE-627 rakwb Stability of resistance to Phytophthora infestans in potato: an international evaluation Oxford, UK Blackwell Science Ltd 2005 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Ten institutions in nine countries joined together to test the stability of resistance of 14 potato genotypes to the oomycete pathogen Phytophthora infestans in three separate trials. Seven of the genotypes were tested in one trial involving seven locations, and all 14 were tested in two subsequent trials, each involving eight locations. Stability of resistance was tested with nonparametric tests and with an additive main effects and multiplicative interaction (AMMI) model. Overall, resistance to P. infestans was robust; resistant genotypes were consistently resistant in all locations and trials. The nonparametric analysis indicated that specific genotypes were basically stable across sites for resistance. In trial 3, the Z statistic for overall stability was significant at 0·05%, indicating a significant level of interaction across the trial, but there were no significant interactions for specific genotypes in this trial. The genotype by environment (G × E) effect of the AMMI model was highly significant in both trials, but the mean square of G × E was less than 10% of the genotype effect in each trial. The first two principal components (PCA1 and PCA2) of the AMMI analyses together explained 75 and 80% of the interaction effects in trials 2 and 3, respectively. Based on both nonparametric and AMMI analyses, Ecuador and Argentina were locations of relatively high interaction effects for both trials 2 and 3, although in Ecuador this interaction was not associated with any particular potato genotype. Other locations also had high interaction effects, but these occurred in only one trial. The genotypes Chata Blanca and, to a lesser extent, Torridon were relatively unstable in trials 2 and 3, but in the case of Torridon, resistant, this did not represent a significant loss of resistance. 2005 Blackwell Publishing Journal Backfiles 1879-2005 |2005|||||||||| area under disease progress curve Forbes, G. A. oth Chacón, M. G. oth Kirk, H. G. oth Huarte, M. A. oth Van Damme, M. oth Distel, S. oth Mackay, G. R. oth Stewart, H. E. oth Lowe, R. oth Duncan, J. M. oth Mayton, H. S. oth Fry, W. E. oth Andrivon, D. oth Ellissèche, D. oth Pellé, R. oth Platt, H. W. oth MacKenzie, G. oth Tarn, T. R. oth Colon, L. T. oth Budding, D. J. oth Lozoya-Saldaña, H. oth Hernandez-Vilchis, A. oth Capezio, S. oth In Plant pathology Oxford [u.a.] : Wiley-Blackwell, 1952 54(2005), 3, Seite 0 Online-Ressource (DE-627)NLEJ243927657 (DE-600)2020845-5 1365-3059 nnns volume:54 year:2005 number:3 pages:0 http://dx.doi.org/10.1111/j.1365-3059.2005.01187.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 54 2005 3 0 |
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Forbes, G. A. @@oth@@ Chacón, M. G. @@oth@@ Kirk, H. G. @@oth@@ Huarte, M. A. @@oth@@ Van Damme, M. @@oth@@ Distel, S. @@oth@@ Mackay, G. R. @@oth@@ Stewart, H. E. @@oth@@ Lowe, R. @@oth@@ Duncan, J. M. @@oth@@ Mayton, H. S. @@oth@@ Fry, W. E. @@oth@@ Andrivon, D. @@oth@@ Ellissèche, D. @@oth@@ Pellé, R. @@oth@@ Platt, H. W. @@oth@@ MacKenzie, G. @@oth@@ Tarn, T. R. @@oth@@ Colon, L. T. @@oth@@ Budding, D. J. @@oth@@ Lozoya-Saldaña, H. @@oth@@ Hernandez-Vilchis, A. @@oth@@ Capezio, S. @@oth@@ |
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stability of resistance to phytophthora infestans in potato: an international evaluation |
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Stability of resistance to Phytophthora infestans in potato: an international evaluation |
| abstract |
Ten institutions in nine countries joined together to test the stability of resistance of 14 potato genotypes to the oomycete pathogen Phytophthora infestans in three separate trials. Seven of the genotypes were tested in one trial involving seven locations, and all 14 were tested in two subsequent trials, each involving eight locations. Stability of resistance was tested with nonparametric tests and with an additive main effects and multiplicative interaction (AMMI) model. Overall, resistance to P. infestans was robust; resistant genotypes were consistently resistant in all locations and trials. The nonparametric analysis indicated that specific genotypes were basically stable across sites for resistance. In trial 3, the Z statistic for overall stability was significant at 0·05%, indicating a significant level of interaction across the trial, but there were no significant interactions for specific genotypes in this trial. The genotype by environment (G × E) effect of the AMMI model was highly significant in both trials, but the mean square of G × E was less than 10% of the genotype effect in each trial. The first two principal components (PCA1 and PCA2) of the AMMI analyses together explained 75 and 80% of the interaction effects in trials 2 and 3, respectively. Based on both nonparametric and AMMI analyses, Ecuador and Argentina were locations of relatively high interaction effects for both trials 2 and 3, although in Ecuador this interaction was not associated with any particular potato genotype. Other locations also had high interaction effects, but these occurred in only one trial. The genotypes Chata Blanca and, to a lesser extent, Torridon were relatively unstable in trials 2 and 3, but in the case of Torridon, resistant, this did not represent a significant loss of resistance. |
| abstractGer |
Ten institutions in nine countries joined together to test the stability of resistance of 14 potato genotypes to the oomycete pathogen Phytophthora infestans in three separate trials. Seven of the genotypes were tested in one trial involving seven locations, and all 14 were tested in two subsequent trials, each involving eight locations. Stability of resistance was tested with nonparametric tests and with an additive main effects and multiplicative interaction (AMMI) model. Overall, resistance to P. infestans was robust; resistant genotypes were consistently resistant in all locations and trials. The nonparametric analysis indicated that specific genotypes were basically stable across sites for resistance. In trial 3, the Z statistic for overall stability was significant at 0·05%, indicating a significant level of interaction across the trial, but there were no significant interactions for specific genotypes in this trial. The genotype by environment (G × E) effect of the AMMI model was highly significant in both trials, but the mean square of G × E was less than 10% of the genotype effect in each trial. The first two principal components (PCA1 and PCA2) of the AMMI analyses together explained 75 and 80% of the interaction effects in trials 2 and 3, respectively. Based on both nonparametric and AMMI analyses, Ecuador and Argentina were locations of relatively high interaction effects for both trials 2 and 3, although in Ecuador this interaction was not associated with any particular potato genotype. Other locations also had high interaction effects, but these occurred in only one trial. The genotypes Chata Blanca and, to a lesser extent, Torridon were relatively unstable in trials 2 and 3, but in the case of Torridon, resistant, this did not represent a significant loss of resistance. |
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Ten institutions in nine countries joined together to test the stability of resistance of 14 potato genotypes to the oomycete pathogen Phytophthora infestans in three separate trials. Seven of the genotypes were tested in one trial involving seven locations, and all 14 were tested in two subsequent trials, each involving eight locations. Stability of resistance was tested with nonparametric tests and with an additive main effects and multiplicative interaction (AMMI) model. Overall, resistance to P. infestans was robust; resistant genotypes were consistently resistant in all locations and trials. The nonparametric analysis indicated that specific genotypes were basically stable across sites for resistance. In trial 3, the Z statistic for overall stability was significant at 0·05%, indicating a significant level of interaction across the trial, but there were no significant interactions for specific genotypes in this trial. The genotype by environment (G × E) effect of the AMMI model was highly significant in both trials, but the mean square of G × E was less than 10% of the genotype effect in each trial. The first two principal components (PCA1 and PCA2) of the AMMI analyses together explained 75 and 80% of the interaction effects in trials 2 and 3, respectively. Based on both nonparametric and AMMI analyses, Ecuador and Argentina were locations of relatively high interaction effects for both trials 2 and 3, although in Ecuador this interaction was not associated with any particular potato genotype. Other locations also had high interaction effects, but these occurred in only one trial. The genotypes Chata Blanca and, to a lesser extent, Torridon were relatively unstable in trials 2 and 3, but in the case of Torridon, resistant, this did not represent a significant loss of resistance. |
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