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Registro Completo |
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Biblioteca(s): |
Epagri-Sede. |
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Data corrente: |
13/04/2011 |
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Data da última atualização: |
13/04/2011 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
LICHTEMBERG, L. A.; MALBURG, J. L.; SONEGO, M.; MORETO, A. L. |
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Afiliação: |
Epagri |
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Título: |
Chiling damage in banana leaves in south of Brazil. |
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Ano de publicação: |
2010 |
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Fonte/Imprenta: |
In: INTERNATIONAL HORTICULTURAL CONGRESS SCIENCE AND HORTICULTURE FOR PEOPLE, 28., 2010, Lisboa . Abstracts... Lisboa : IHC, 2010. p. 754-754. |
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Idioma: |
Inglês |
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Conteúdo: |
In Southern Brazil, banana plants are subject to cold damage, in the autumn and winter. In some years, with temperatures between 0 and 6ºC, the leaves become progressively yellower due to chlorophyll destruction. This study was performed in Itajaí, SC, Brazil, in June 22 th, 2007, with the purpouse of investigating the differences among banana cultivars cold damage resistence. A scale from 1 to 5 was used to grade the leaves chilling intensity and to evaluate the cold damage level, for the total amount of the 18 phenotype. From all used varieties, clones and hybrids, the following distribution by groups was done: 4 AA group, 56 AAA group, 3 AAAA group, 28 AAB group, 21 AAAB group and 6 ABB group. The cold resistance inheritance degree was degree was greater than 90% in this study, however cold damage differences were observed among and within genome groups and subgroups. The B genome appeared to confer the greatest cold resistance to banana fruits. |
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Palavras-Chave: |
Banana genotype; Frost damage; Geada; Genotipo; Vento; Wind damage. |
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Categoria do assunto: |
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Marc: |
LEADER 01532naa a2200193 a 4500
001 1075680
005 2011-04-13
008 2010 bl uuuu u00u1 u #d
100 1 $aEpagri
245 $aChiling damage in banana leaves in south of Brazil.
260 $c2010
520 $aIn Southern Brazil, banana plants are subject to cold damage, in the autumn and winter. In some years, with temperatures between 0 and 6ºC, the leaves become progressively yellower due to chlorophyll destruction. This study was performed in Itajaí, SC, Brazil, in June 22 th, 2007, with the purpouse of investigating the differences among banana cultivars cold damage resistence. A scale from 1 to 5 was used to grade the leaves chilling intensity and to evaluate the cold damage level, for the total amount of the 18 phenotype. From all used varieties, clones and hybrids, the following distribution by groups was done: 4 AA group, 56 AAA group, 3 AAAA group, 28 AAB group, 21 AAAB group and 6 ABB group. The cold resistance inheritance degree was degree was greater than 90% in this study, however cold damage differences were observed among and within genome groups and subgroups. The B genome appeared to confer the greatest cold resistance to banana fruits.
653 $aBanana genotype
653 $aFrost damage
653 $aGeada
653 $aGenotipo
653 $aVento
653 $aWind damage
773 $tIn: INTERNATIONAL HORTICULTURAL CONGRESS SCIENCE AND HORTICULTURE FOR PEOPLE, 28., 2010, Lisboa . Abstracts... Lisboa : IHC, 2010. p. 754-754.
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Epagri-Sede (Epagri-Sede) |
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Biblioteca(s): |
Epagri-Sede. |
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Data corrente: |
20/04/2012 |
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Data da última atualização: |
23/05/2012 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
-- - -- |
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Autoria: |
WICKERT, E.; LEMOS, E. G. M.; KISHI, L. T.; SOUZA, A.; GOES, A. |
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Afiliação: |
Epagri |
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Título: |
Genetic Diversity and Population Differentiation of Guignardia mangiferae from Tahiti Acid Lime. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
The Scientific World Journal, Estados Unidos, v. 2012, p. 1-11, 2012. |
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Idioma: |
Inglês |
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Notas: |
ISSN, 1537-744X |
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Conteúdo: |
One of the most important diseases that affect sweet orange orchards in Brazil is the Citrus Black Spot that is caused by the fungus Guignardia citricarpa. This disease causes irreparable losses due to the premature falling of fruit, as well as its severe effects on the
epidermis of ripe fruit that renders them unacceptable at the fresh fruit markets. Despite the fact that the fungus and the disease are well studied, little is known about the genetic diversity and the structure of the fungi populations in Brazilian orchards. The objective
of this work was study the genetic diversity and population differentiation of G. citricarpa associated with four sweet orange varieties in two geographic locations using DNA sequence of ITS1-5.8S-ITS2 region from fungi isolates.We observed that different
populations are closely related and present little genetic structure according to varieties and geographic places with the highest genetic diversity distributed among isolates of the same populations. The same haplotypes were sampled in different populations
from the same and different orange varieties and from similar and different origins. If new and pathogenic fungi would become resistant to fungicides, the observed genetic structure could rapidly spread this new form from one population to others.
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Palavras-Chave: |
Genetic diversity; Population structure. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01795naa a2200157 a 4500
001 1081504
005 2012-05-23
008 2012 bl uuuu u00u1 u #d
100 1 $aEpagri
245 $aGenetic Diversity and Population Differentiation of Guignardia mangiferae from Tahiti Acid Lime.
260 $c2012
500 $aISSN, 1537-744X
520 $aOne of the most important diseases that affect sweet orange orchards in Brazil is the Citrus Black Spot that is caused by the fungus Guignardia citricarpa. This disease causes irreparable losses due to the premature falling of fruit, as well as its severe effects on the epidermis of ripe fruit that renders them unacceptable at the fresh fruit markets. Despite the fact that the fungus and the disease are well studied, little is known about the genetic diversity and the structure of the fungi populations in Brazilian orchards. The objective of this work was study the genetic diversity and population differentiation of G. citricarpa associated with four sweet orange varieties in two geographic locations using DNA sequence of ITS1-5.8S-ITS2 region from fungi isolates.We observed that different populations are closely related and present little genetic structure according to varieties and geographic places with the highest genetic diversity distributed among isolates of the same populations. The same haplotypes were sampled in different populations from the same and different orange varieties and from similar and different origins. If new and pathogenic fungi would become resistant to fungicides, the observed genetic structure could rapidly spread this new form from one population to others.
653 $aGenetic diversity
653 $aPopulation structure
773 $tThe Scientific World Journal, Estados Unidos$gv. 2012, p. 1-11, 2012.
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