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Registros recuperados: 32 | |
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Prabhu,Anne Sitarama; Castro,Emílio da Maia de; Araújo,Leila Garcês de; Berni,Rodrigo Fascin. |
The objective of this work was to evaluate the resistance spectra of six elite breeding lines of rice, developed for improved yield and grain quality, in inoculation tests in the greenhouse and in the field. Forty-six isolates of Pyricularia grisea collected from the cultivar Primavera, 31 from the cultivar Maravilha and 19 from six elite breeding lines, totaling 96 were utilized for inoculations. Out of 11 international and 15 Brazilian pathotypes, IC-1, IB-9, and BD-16, respectively, were identified as most frequent isolates collected from the cultivar Primavera. The isolates retrieved from Maravilha belong to four international and 11 Brazilian pathotypes, the predominant ones being IB-9 and IB-49 and BB-1 and BB-21, respectively. Lines CNAs 8711 and... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Oryza sativa; Pathotypes; Physiologic races; Rice blast; Inoculation methods. |
Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2003000200006 |
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Santiago,Camila Hohenfeld; Santana,Mariana Pereira; Cairo Junior,Luiz Rodriguez; Oliveira,Saulo Alves Santos de; Oliveira,Eder Jorge de. |
ABSTRACT Cassava root rot diseases such as dry and black root rot are listed among the major threats, since its affect the main product (tuberous roots), causing a progressive decline in yield and affecting subsequent crop cycles, being the use of resistant varieties the most reliable control measure on field level. The objective of this study was to identify inoculation methods for the early evaluation of genotypes, considering the level of resistance to dry (DRR) and black (BRR) root rot diseases. Different methodologies and plant tissues were evaluated, based on the immersion of cassava tissues (roots and stem cuttings), soil infestation, and inoculation of detached tissues (leaves, tuberous roots and stem cuttings). The following parameters were... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Manihot esculenta Crantz; Fusarium solani; Neoscytalidium hyalinum; Root diseases; Inoculation methods. |
Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052018000300440 |
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Registros recuperados: 32 | |
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