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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
15/10/2014 |
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Data da última atualização: |
15/10/2014 |
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Autoria: |
ALCONERO, R.; ALBUQUERQUE, F.; ALMEYDA, N.; SANTIAGO, A. G. |
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Afiliação: |
Federal Experiment Station, Plant Research Division, ARS, USDA; FERNANDO CARNEIRO DE ALBUQUERQUE, IPEAN; Federal Experiment Station, Plant Research Division, ARS, USDA; ALMA G. SANTIAGO, Federal Experiment Station, Plant Research Division, ARS, USDA. |
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Título: |
Phytophthora foot rot of black pepper in Brazil and Puerto Rico. |
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Ano de publicação: |
1972 |
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Fonte/Imprenta: |
Phytopathology, v. 62, n. 1, p. 144-148, Jan. 1972. |
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Idioma: |
Inglês |
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Conteúdo: |
Foot rot epidemics of black pepper (Piper nigrum) caused by Phytophthora palmivora are usually observed when plants are of bearing age (2 or more years old). Younger plants also are susceptible, and may collapse rapidly if inoculum concentrations are high. In areas new to black pepper cultivation, the amount of inoculum in the soil probably is low. Consequently, development of root infections into severe foot rots at the soil line occurs slowly. An increase in number and mobility of infective zoospores results in increased infection, rapid deterioration of roots, and collapse of the infected plants. Several commercial varieties are equally susceptible. Grafts on disease-resistant Piper colubrinum deteriorate after the 4th year. |
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Palavras-Chave: |
Brasil; Porto Rico. |
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Thesagro: |
Doença; Pimenta. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01265naa a2200205 a 4500
001 1997378
005 2014-10-15
008 1972 bl uuuu u00u1 u #d
100 1 $aALCONERO, R.
245 $aPhytophthora foot rot of black pepper in Brazil and Puerto Rico.
260 $c1972
520 $aFoot rot epidemics of black pepper (Piper nigrum) caused by Phytophthora palmivora are usually observed when plants are of bearing age (2 or more years old). Younger plants also are susceptible, and may collapse rapidly if inoculum concentrations are high. In areas new to black pepper cultivation, the amount of inoculum in the soil probably is low. Consequently, development of root infections into severe foot rots at the soil line occurs slowly. An increase in number and mobility of infective zoospores results in increased infection, rapid deterioration of roots, and collapse of the infected plants. Several commercial varieties are equally susceptible. Grafts on disease-resistant Piper colubrinum deteriorate after the 4th year.
650 $aDoença
650 $aPimenta
653 $aBrasil
653 $aPorto Rico
700 1 $aALBUQUERQUE, F.
700 1 $aALMEYDA, N.
700 1 $aSANTIAGO, A. G.
773 $tPhytopathology$gv. 62, n. 1, p. 144-148, Jan. 1972.
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Registro original: |
Embrapa Amazônia Oriental (CPATU) |
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