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| Pereira,Ricardo B; Aguiar,Frederick M; Torres,Tiago B; Amaro,Geovani Bernardo; Lucas,Gilvaine C; Pinheiro,Jadir B. |
| RESUMO Phytophthora capsici causa prejuízos significativos em cultivos de abóbora (Cucurbita moschata) e morangas (Cucurbita maxima), incluindo a podridão de raízes e coroa, o crestamento foliar e a podridão de frutos, o que pode resultar em até 100% de perdas na produção. O objetivo deste estudo foi avaliar a reação de genótipos de abóboras e morangas a P. capsici. Inicialmente um experimento foi realizado para avaliar a agressividade de isolados de P. capsici de diferentes regiões. Posteriormente, dois experimentos foram realizados em casa de vegetação com 16 genótipos de C. moschata e sete de C. maxima em anos distintos, utilizando os isolados PCA 40 e PCA 43, identificados como os mais agressivos em teste preliminar. Como testemunhas foram utilizadas a... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cucurbita maxima; Cucurbita moschata; Podridão de fitóftora; Resistência. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362017000400599 |
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| Melo,Raphael Augusto de C; Silva,Giovani Olegario da; Vendrame,Larissa PC; Pilon,Lucimeire; Guimarães,Jorge Anderson; Amaro,Geovani Bernardo. |
| ABSTRACT Production of purple-fleshed sweetpotatoes, source of anthocyanins, pigments with high antioxidant activities, is expected to be extended during the upcoming years, as there is a strong trend to market products promising improved health. This study aimed to evaluate yield, postharvest quality and pest resistance of roots of purple-fleshed sweetpotatoes. Six genotypes (BGBD 0005, BGBD 0080, BGBD 1261, BGBD 1399, BGBD 1402 and BGBD 1405) and the cultivars Beauregard and Brazlândia Roxa as controls were evaluated during two seasons 2018 (Experiment 1) and 2019 (Experiment 2), in Brasília-DF, Brazil. The experiments were conducted in a complete randomized blocks design with four replications, with experimental plots consisting of two rows of six... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ipomea batatas; Marketable roots; Appearance; Insect damage; Soluble solids; Dry matter content. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000400439 |
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| Carmona,Paula Andrea O; Pinheiro,Jadir B; Amaro,Geovani Bernardo; Silva,Giovani Olegario da; Peixoto,José Ricardo; Cares,Juvenil Enrique. |
| ABSTRACT One of the main obstacles for food production in many developing countries, as in Brazil, is the damage caused by root-knot nematodes, mainly those belonging to the genus Meloidogyne. This study aimed to assess the resistance levels of 44 sweet potato genotypes to M. javanica, M. incognita race 1 and M. enterolobii. These researches were carried out in 2014, under greenhouse conditions in Brasília-DF, Brazil. A completely randomized design with six replicates of one plant/plot/treatment was used. We determined the gall index (GI) and egg mass index (EMI) in the root system of each plant, the number of eggs and juveniles per gram of root with galls and the nematode reproduction factor. M. javanica was less aggressive and reproduced in only 9.09% of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ipomoea batatas; Plant breeding; Reproduction factor; Genetic resistance. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000200126 |
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