Variation in rust susceptibility in beans: predicting lesion size from leaf developmental stage measured by leaf age, length, and plastochron index
The importance of controlling for leaf developmental stage at the time of inoculation in studies of lesion size was investigated. Significant differences were obtained between two cultivars. Pompadour Checa and Pinto 650, by regressing lesion size on leaf developmental stage at time of inoculation....
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| Veröffentlicht in: | Phytopathology 1989-10, Vol.79 (10), p.1035-1042 |
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| container_title | Phytopathology |
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| creator | Shaik, M. (Royal Ontario Museum, Toronto, Ontario, Canada) Dickinson, T.A Steadman, J.R |
| description | The importance of controlling for leaf developmental stage at the time of inoculation in studies of lesion size was investigated. Significant differences were obtained between two cultivars. Pompadour Checa and Pinto 650, by regressing lesion size on leaf developmental stage at time of inoculation. Leaf developmental stage was recorded as leaf age (days from unfolding), as leaf length, and by means of a plastochron index. Of these three variables, leaf age and plastochron index were better predictors of lesion size than leaf length. Plastochron index is a superior indicator of leaf development since it integrates chronological age and increase in size and is easier to assess. The results reported here may explain certain aspects of the field resistance of Pompadour Checa |
| doi_str_mv | 10.1094/Phyto-79-1035 |
| format | Article |
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(Royal Ontario Museum, Toronto, Ontario, Canada) ; Dickinson, T.A ; Steadman, J.R</creator><creatorcontrib>Shaik, M. (Royal Ontario Museum, Toronto, Ontario, Canada) ; Dickinson, T.A ; Steadman, J.R</creatorcontrib><description>The importance of controlling for leaf developmental stage at the time of inoculation in studies of lesion size was investigated. Significant differences were obtained between two cultivars. Pompadour Checa and Pinto 650, by regressing lesion size on leaf developmental stage at time of inoculation. Leaf developmental stage was recorded as leaf age (days from unfolding), as leaf length, and by means of a plastochron index. Of these three variables, leaf age and plastochron index were better predictors of lesion size than leaf length. Plastochron index is a superior indicator of leaf development since it integrates chronological age and increase in size and is easier to assess. The results reported here may explain certain aspects of the field resistance of Pompadour Checa</description><identifier>ISSN: 0031-949X</identifier><identifier>EISSN: 1943-7684</identifier><identifier>DOI: 10.1094/Phyto-79-1035</identifier><identifier>CODEN: PHYTAJ</identifier><language>eng</language><publisher>St. Paul, MN: American Phytopathological Society</publisher><subject>AGE ; Agronomy. Soil science and plant productions ; Biological and medical sciences ; EDAD ; FEUILLE ; Fundamental and applied biological sciences. Psychology ; Generalities ; Genetics and breeding of economic plants ; HOJAS ; LARGURA ; LONGUEUR ; MADURACION ; MATURATION ; Pest resistance ; PHASEOLUS VULGARIS ; RESISTANCE AUX MALADIES ; RESISTENCIA A LA ENFERMEDAD ; UROMYCES ; VARIEDADES ; Varietal selection. 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Plastochron index is a superior indicator of leaf development since it integrates chronological age and increase in size and is easier to assess. The results reported here may explain certain aspects of the field resistance of Pompadour Checa</description><subject>AGE</subject><subject>Agronomy. Soil science and plant productions</subject><subject>Biological and medical sciences</subject><subject>EDAD</subject><subject>FEUILLE</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Generalities</subject><subject>Genetics and breeding of economic plants</subject><subject>HOJAS</subject><subject>LARGURA</subject><subject>LONGUEUR</subject><subject>MADURACION</subject><subject>MATURATION</subject><subject>Pest resistance</subject><subject>PHASEOLUS VULGARIS</subject><subject>RESISTANCE AUX MALADIES</subject><subject>RESISTENCIA A LA ENFERMEDAD</subject><subject>UROMYCES</subject><subject>VARIEDADES</subject><subject>Varietal selection. 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Leaf developmental stage was recorded as leaf age (days from unfolding), as leaf length, and by means of a plastochron index. Of these three variables, leaf age and plastochron index were better predictors of lesion size than leaf length. Plastochron index is a superior indicator of leaf development since it integrates chronological age and increase in size and is easier to assess. The results reported here may explain certain aspects of the field resistance of Pompadour Checa</abstract><cop>St. Paul, MN</cop><pub>American Phytopathological Society</pub><doi>10.1094/Phyto-79-1035</doi><tpages>8</tpages></addata></record> |
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| identifier | ISSN: 0031-949X |
| ispartof | Phytopathology, 1989-10, Vol.79 (10), p.1035-1042 |
| issn | 0031-949X 1943-7684 |
| language | eng |
| recordid | cdi_crossref_primary_10_1094_Phyto_79_1035 |
| source | EZB-FREE-00999 freely available EZB journals; American Phytopathological Society Journal Back Issues |
| subjects | AGE Agronomy. Soil science and plant productions Biological and medical sciences EDAD FEUILLE Fundamental and applied biological sciences. Psychology Generalities Genetics and breeding of economic plants HOJAS LARGURA LONGUEUR MADURACION MATURATION Pest resistance PHASEOLUS VULGARIS RESISTANCE AUX MALADIES RESISTENCIA A LA ENFERMEDAD UROMYCES VARIEDADES Varietal selection. Specialized plant breeding, plant breeding aims VARIETE |
| title | Variation in rust susceptibility in beans: predicting lesion size from leaf developmental stage measured by leaf age, length, and plastochron index |
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