Incidence of fungus and physiological quality of seeds of Jatropha curcas L. after cryogenic storage
The objective of this work was to evaluate the incidence of fungi in stored seeds of Jatropha curcas. The research was carried out at Cryogenic/UFCG, Sanity/UFPB and Cotton/Embrapa. The material for analysis showed an 8% water level, and 200 seeds were stored for treatment in cryogenic containers wi...
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| Format: | Article |
| Language: | English |
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Universidade Federal de Santa Catarina
2010-03-01
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| Series: | Biotemas |
| Subjects: | |
| Online Access: | http://www.biotemas.ufsc.br/volumes/pdf/volume231/19a26.pdf |
| _version_ | 1829531220191477760 |
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| author | Míriam Goldfarb Maria Elita Martins Duarte Mário Eduardo R. M. Cavalcanti Mata Luciana Cordeiro do Nascimento Noelma Miranda de Brito Francisca Maria Souto |
| author_facet | Míriam Goldfarb Maria Elita Martins Duarte Mário Eduardo R. M. Cavalcanti Mata Luciana Cordeiro do Nascimento Noelma Miranda de Brito Francisca Maria Souto |
| author_sort | Míriam Goldfarb |
| collection | DOAJ |
| description | The objective of this work was to evaluate the incidence of fungi in stored seeds of Jatropha curcas. The research was carried out at Cryogenic/UFCG, Sanity/UFPB and Cotton/Embrapa. The material for analysis showed an 8% water level, and 200 seeds were stored for treatment in cryogenic containers with nitrogen in the vapor and liquid phases. Four periods of crioconservation (0, 30, 60 and 90 days), were employed. After each period, the seeds were tested for sanity (Blotter test) and germination. Superficial disinfestation, was carried out and seeds were distributed in Petri dishes, for incubation at 25 ± 2ºC, over a period of 7 days. The evaluation of the incidence of fungi was carried out in a stereoscopic microscope with observation of fungal structures, and values were expressed as percentages of seeds with fungus. The statistical experiment was completely randomized with temperature x days of storage. Analysis of variance was conducted and the means were compared by Tukey’s test at 5%. After 30 days of cryogenic storage, a greater incidence of Aspergillus sp., Cladosporium sp. and Fusarium sp. was detected. It was concluded that crioconservation at cryogenic temperatures did not reduce the incidence of fungus on Jatropha curcas seeds. The physiological quality was preserved during the cryoconservation. |
| first_indexed | 2024-12-16T18:17:52Z |
| format | Article |
| id | doaj.art-da8020cdc24047e9a991bef212bfab35 |
| institution | Directory Open Access Journal |
| issn | 0103-1643 |
| language | English |
| last_indexed | 2024-12-16T18:17:52Z |
| publishDate | 2010-03-01 |
| publisher | Universidade Federal de Santa Catarina |
| record_format | Article |
| series | Biotemas |
| spelling | doaj.art-da8020cdc24047e9a991bef212bfab352022-12-21T22:21:39ZengUniversidade Federal de Santa CatarinaBiotemas0103-16432010-03-012311926Incidence of fungus and physiological quality of seeds of Jatropha curcas L. after cryogenic storageMíriam GoldfarbMaria Elita Martins DuarteMário Eduardo R. M. Cavalcanti MataLuciana Cordeiro do NascimentoNoelma Miranda de BritoFrancisca Maria SoutoThe objective of this work was to evaluate the incidence of fungi in stored seeds of Jatropha curcas. The research was carried out at Cryogenic/UFCG, Sanity/UFPB and Cotton/Embrapa. The material for analysis showed an 8% water level, and 200 seeds were stored for treatment in cryogenic containers with nitrogen in the vapor and liquid phases. Four periods of crioconservation (0, 30, 60 and 90 days), were employed. After each period, the seeds were tested for sanity (Blotter test) and germination. Superficial disinfestation, was carried out and seeds were distributed in Petri dishes, for incubation at 25 ± 2ºC, over a period of 7 days. The evaluation of the incidence of fungi was carried out in a stereoscopic microscope with observation of fungal structures, and values were expressed as percentages of seeds with fungus. The statistical experiment was completely randomized with temperature x days of storage. Analysis of variance was conducted and the means were compared by Tukey’s test at 5%. After 30 days of cryogenic storage, a greater incidence of Aspergillus sp., Cladosporium sp. and Fusarium sp. was detected. It was concluded that crioconservation at cryogenic temperatures did not reduce the incidence of fungus on Jatropha curcas seeds. The physiological quality was preserved during the cryoconservation.http://www.biotemas.ufsc.br/volumes/pdf/volume231/19a26.pdfcryoconservationoil speciessanity and physiological analyses |
| spellingShingle | Míriam Goldfarb Maria Elita Martins Duarte Mário Eduardo R. M. Cavalcanti Mata Luciana Cordeiro do Nascimento Noelma Miranda de Brito Francisca Maria Souto Incidence of fungus and physiological quality of seeds of Jatropha curcas L. after cryogenic storage Biotemas cryoconservation oil species sanity and physiological analyses |
| title | Incidence of fungus and physiological quality of seeds of Jatropha curcas L. after cryogenic storage |
| title_full | Incidence of fungus and physiological quality of seeds of Jatropha curcas L. after cryogenic storage |
| title_fullStr | Incidence of fungus and physiological quality of seeds of Jatropha curcas L. after cryogenic storage |
| title_full_unstemmed | Incidence of fungus and physiological quality of seeds of Jatropha curcas L. after cryogenic storage |
| title_short | Incidence of fungus and physiological quality of seeds of Jatropha curcas L. after cryogenic storage |
| title_sort | incidence of fungus and physiological quality of seeds of jatropha curcas l after cryogenic storage |
| topic | cryoconservation oil species sanity and physiological analyses |
| url | http://www.biotemas.ufsc.br/volumes/pdf/volume231/19a26.pdf |
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