Variation in reaction to anthracnose within native Stylosanthes capitata populations in Minas Gerais, Brazil
Native populations of Stylosanthes capitata, a promising perennial pasture legume in tropical America, were evaluated for their reaction to a virulent widespread race of Colletotrichum gloeosporioides. Considerable variation in anthracnose reaction among progenies from individual plants, among plant...
| Autor principal: | |
|---|---|
| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Scientific Societies
1988
|
| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/44220 |
| _version_ | 1855522818564816896 |
|---|---|
| author | Lenné, Jillian M. |
| author_browse | Lenné, Jillian M. |
| author_facet | Lenné, Jillian M. |
| author_sort | Lenné, Jillian M. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Native populations of Stylosanthes capitata, a promising perennial pasture legume in tropical America, were evaluated for their reaction to a virulent widespread race of Colletotrichum gloeosporioides. Considerable variation in anthracnose reaction among progenies from individual plants, among plants from the same site, and between populations from the same and different sites in Minas Gerais, Brazil, was found. The greatest diversity for anthracnose reaction among progeny was shown by population Diamantina B (Shannon Index of Diversity h = 0.39), whereas the least was found in Mendanha B (h = 0.17). Although the majority of progenies were susceptible, highly resistant progenies were found in all populations. Results suggest that diversity in anthracnose resistance within native S. capitata populations contributes to their persistence in the presence of virulent C. gloeosporioides and emphasize the importance of maintaining diversity in improved S. capitata pastures in agroecosystems where C. gloeosporioides is endemic. |
| format | Journal Article |
| id | CGSpace44220 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 1988 |
| publishDateRange | 1988 |
| publishDateSort | 1988 |
| publisher | Scientific Societies |
| publisherStr | Scientific Societies |
| record_format | dspace |
| spelling | CGSpace442202024-05-01T08:16:50Z Variation in reaction to anthracnose within native Stylosanthes capitata populations in Minas Gerais, Brazil Lenné, Jillian M. feed crops stylosanthes capitata colletotrichum gloeosporioides patogenicidad resistencia selección genética cerrados características agronómicas colletotrichum enfermedades y patogenos fitomejoramiento fitopatología leguminosas micosis stylosanthes Native populations of Stylosanthes capitata, a promising perennial pasture legume in tropical America, were evaluated for their reaction to a virulent widespread race of Colletotrichum gloeosporioides. Considerable variation in anthracnose reaction among progenies from individual plants, among plants from the same site, and between populations from the same and different sites in Minas Gerais, Brazil, was found. The greatest diversity for anthracnose reaction among progeny was shown by population Diamantina B (Shannon Index of Diversity h = 0.39), whereas the least was found in Mendanha B (h = 0.17). Although the majority of progenies were susceptible, highly resistant progenies were found in all populations. Results suggest that diversity in anthracnose resistance within native S. capitata populations contributes to their persistence in the presence of virulent C. gloeosporioides and emphasize the importance of maintaining diversity in improved S. capitata pastures in agroecosystems where C. gloeosporioides is endemic. 1988 2014-10-02T08:33:26Z 2014-10-02T08:33:26Z Journal Article https://hdl.handle.net/10568/44220 en Open Access Scientific Societies |
| spellingShingle | feed crops stylosanthes capitata colletotrichum gloeosporioides patogenicidad resistencia selección genética cerrados características agronómicas colletotrichum enfermedades y patogenos fitomejoramiento fitopatología leguminosas micosis stylosanthes Lenné, Jillian M. Variation in reaction to anthracnose within native Stylosanthes capitata populations in Minas Gerais, Brazil |
| title | Variation in reaction to anthracnose within native Stylosanthes capitata populations in Minas Gerais, Brazil |
| title_full | Variation in reaction to anthracnose within native Stylosanthes capitata populations in Minas Gerais, Brazil |
| title_fullStr | Variation in reaction to anthracnose within native Stylosanthes capitata populations in Minas Gerais, Brazil |
| title_full_unstemmed | Variation in reaction to anthracnose within native Stylosanthes capitata populations in Minas Gerais, Brazil |
| title_short | Variation in reaction to anthracnose within native Stylosanthes capitata populations in Minas Gerais, Brazil |
| title_sort | variation in reaction to anthracnose within native stylosanthes capitata populations in minas gerais brazil |
| topic | feed crops stylosanthes capitata colletotrichum gloeosporioides patogenicidad resistencia selección genética cerrados características agronómicas colletotrichum enfermedades y patogenos fitomejoramiento fitopatología leguminosas micosis stylosanthes |
| url | https://hdl.handle.net/10568/44220 |
| work_keys_str_mv | AT lennejillianm variationinreactiontoanthracnosewithinnativestylosanthescapitatapopulationsinminasgeraisbrazil |