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| Noronha,Marissônia de Araujo; Muniz,Maria de Fátima Silva; Cruz,Marcelo de Menezes; Assunção,Mayara Castro; Castro,José Mauro da Cunha e; Oliveira,Ellen Rebecca Lopes de; Miranda,Camila Gonçalves dos Santos; Machado,Andressa Cristina Zamboni. |
| ABSTRACT: The objective of this study was to accomplish a survey on populations of Meloidogyne and Pratylenchus species in sugarcane farming areas in the state of Alagoas, Brazil. Twenty samples of soil and roots were processed to extract and quantify nematodes; however, the identification of Meloidogyne species was performed using only 12 samples. Pratylenchus spp. were reported at moderate population levels of 68-1556 specimens 50g-1 of roots and 2-298 specimens 100cm-3 of soil in twenty analyzed samples. For Meloidogyne spp., these values were of 12-487 specimens 50g-1 of roots and 0-140 specimens 100cm-3 of soil. Based on electrophoresis of esterase isozymes, M. incognita was reported to be the most frequent species, followed by M. javanica and M.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Field survey; Plant-parasitic nematodes; Saccharum spp. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000200151 |
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| Santos,Carlos Antonio Fernandes; Castro,José Mauro da Cunha e; Souza,Flavio de França; Vilarinho,Aloísio Alcântara; Ferreira,Francisco Ricardo; Pádua,Juliano Gomes; Borges,Rita Mércia Estigarribia; Barbieri,Rosa Lia; Souza,Aparecida das Graças Claret de; Rodrigues,Marciene Amorim. |
| The objective of this work was to characterize 119 accessions of guava and 40 accessions of "araçá" sampled in 35 Brazilian ecoregions, according to the International Union for the Protection of New Varieties of Plants (UPOV) descriptors. The majority of "araçá" accessions presented wide spacing of leaf veins, while guava accessions presented medium to close spacing. Most fruits of "araçá" accessions were classified as small, contrasting with medium to large fruits of guava accessions. Most of "araçá" accessions (91%) presented white flesh fruit color, while 58% of guava accessions presented pale pink, pink and dark pink colors. Fruit differences among wild and cultivated Psidium species indicate fruit as the most altered trait under artificial selection. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Psidium guajava; Araçá; Guava. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2008000300020 |
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