|
|
|
|
|
| Azevedo,Fernando Alves; Polydoro,Denis Augusto; Bastianel,Marines; Kupper,Katia Cristina; Stuart,Rodrigo Makowiecky; Costa,Francelino Pereira; Pio,Rose Mary. |
| A severidade da mancha-marrom de alternária nos pomares brasileiros de tangerinas tem causado sérias preocupações aos citricultores, devido aos prejuízos em plantios comerciais de variedades suscetíveis, como a tangerina Ponkan e o tangor Murcott. Para avaliar a resposta de diferentes genótipos ao fungo, foram realizadas inoculações de Alternaria alternata in vitro e in vivo, em 54 diferentes genótipos de tangerinas e seus híbridos, selecionados no Banco Ativo de Germoplasma de Citros do Centro APTA Citros Sylvio Moreira, do Instituto Agronômico, em Cordeirópolis-SP, visando a encontrar variedades resistentes. Para isso, inicialmente, testes de patogenicidade foram realizados com dez isolados de A. alternata para a seleção dos mais agressivos.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mancha-marrom de Alternária; Citrus reticulata; Resistência varietal. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452010000300040 |
| |
|
|
| Pacheco,Camilla de Andrade; Martelli,Ivan Bortolato; Polydoro,Denis Augusto; Schinor,Evandro Henrique; Pio,Rose Mary; Kupper,Kátia Cristina; Azevedo,Fernando Alves de. |
| Caused by Alternaria alternata, Alternaria brown spot (ABS) is a major fungal disease of mandarins in Brazil, causing serious losses in commercial orchards of Ponkan tangerine (Citrus reticulata Blanco) and Murcott tangor [C. sinensis (L.) Osbeck × C. reticulata Blanco]. The response of 31 accessions/genotypes of mandarins and their hybrids to A. alternata, was evaluated in São Paulo state, Brazil. The incidence and severity of the disease in fruit were evaluated in the field, using diagrammatic scale, four times during 2008 and 2009. Based on these data, the area under the disease progress curve (AUDPC) was calculated. In parallel, in vivo and in vitro inoculations with A. alternata were made on leaves to confirm field results. Resistance and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Citrus spp.; Alternaria brown spot; Fungus. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162012000600007 |
| |
|
|
| Azevedo,Fernando Alves de; Martelli,Ivan Bortolato; Polydoro,Denis Augusto; Pacheco,Camilla de Andrade; Schinor,Evandro Henrique; Bastianel,Marinês. |
| Alternaria brown spot, or ABS (Alternaria alternata), is the most prevalent fungal disease of tangerines in the world. Field observations have revealed ABS lesions on leaves wounded by the citrus leaf miner (CLM). Thus, the objective of this study was to assess the relationship between CLM and ABS. Leaves from young Murcott tangor plants and detached leaves from 16 different varieties of tangerines with and without lesions caused by CLM were inoculated with A. alternata. The symptoms of the plants were subsequently quantified by counting the number of lesions, and the lesion area was estimated using a diagrammatic scale. The presence of CLM damage aggravates the severity of Alternaria alternata fungus infections in susceptible tangerine varieties. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Alternaria alternata; Phyllocnistis citrella; Tangerine. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015000701160 |
| |
|
|
|
