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Evaluación de la antracnosis (Colletotrichum sp.) en guanábana (Annona muricata L.) tipo Gigante en el sector Moralito del estado Zulia, Venezuela Evaluation of anthracnose (Colletotrichum sp.) in Annona muricata L. Giant type in the sector Moralito, Zulia State, Venezuela
| Content Provider | Semantic Scholar |
|---|---|
| Author | Andrades, Indira Yender, Franco Labarca, Johanna Ulacio, Dilcia Cláudia Alvarado, Lisandro Lara, Estado |
| Copyright Year | 2009 |
| Abstract | With the purpose of evaluating the anthracnose (Colletotrichum sp.) in Annona muricata L. “giant type” in the Moralito sector in Zulia state, there were selected, totally at random, 20 plants from a comercial plantation, which was 7 years old, for each plant, all the healthy fruit present were marked, with ages ranking from 5 to 8 days of having been curd (burr stage), for a total of 126 fruits. The lenght of the fruit was measured, to determine the severity of the anthacnosis in the different stages of the growth. The precipitation data was taken to correlate with the highest severity moment of the disease. The present fungus was isolated for each fruit in orden to complay with the koch process. The healthy fruit in each stage were inoculated for each of the identified fungus and their mixture. The results showed that the disease is more severe in stage I (30 days) and II (60 days) of the growth of the fruit with severity average in stage I (9,6500) and II (8,5333), due to the high level of precipitation, reached in the fourth week (50 mm/water) and in the eighth week (145 mm/water). The incidence of the disease reached 100% in all stages. Three colonies of Colletotrichum sp., were indicated, presenting different morphological characteristics and one of Fusarium sp., according to Koch process. It was corroborated that the damage was caused by the Colletotrichum spp., fungus being more aggressive when it acts in association with other fungi. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://tspace.library.utoronto.ca/bitstream/1807/45450/1/cg09021.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
