Consulta: creatorFacets:"SANTOS,FREDOLINO G."
Registros recuperados: 3
Data/hora: 11/06/2024 09:02:09

Resistance of Commercial Hybrids and Lines of Sorghum, Sorghum bicolor (L.) Moench., to Diatraea saccharalis (Fabr.) (Lepidoptera: Pyralidae)
Provedor de dados: 82
Autores: WAQUIL,JOSÉ M.; RODRIGUES,JOSÉ A.S.; SANTOS,FREDOLINO G.; FERREIRA,ALEXANDRE S.; VILELLA,FRANCYS M.F.; FOSTER,JOHN E.
Commercial sorghum hybrids and Embrapa's lines were evaluated regarding resistance to sugarcane borer. Two field experiments were conducted in Sete Lagoas, MG, under natural infestation, during the second cropping season in a randomized complete block with 3 replicates. The plants were evaluated regarding to stand, maturity cycle, plant height, and number of broken or lodging stalks and yield. The borer incidence, number of galleries, number of healthy and damaged nodes were also evaluated to calculate the Infestation Index and Intensity Infestation Index. Among the commercial sorghum hybrids, Br 304 and CMSXS 9701 were the least infested wile Z 732 and Esmeralda were the least damaged. Among the lines, the least infested was 9815017 and least damaged...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Insecta; Sugarcane borer; Sorghum IPM; Insect-plant interaction.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2001000400022

Reaction of sorghum genotypes to the anthracnose fungus Colletotrichum graminicola
Provedor de dados: 102
Autores: CASELA,CARLOS R.; SANTOS,FREDOLINO G.; FERREIRA,ALEXANDRE S.
The reactions of 22 sorghum (Sorghum bicolor) genotypes to six previously identified races of the sorghum anthracnose fungus Colletotrichum graminicola, were evaluated under greenhouse and field conditions. Races were inoculated in separate tests in the greenhouse. In the field, spreader rows of a susceptible genotype were artificially inoculated with a mixture of the six races of the pathogen. In the greenhouse tests, nine genotypes showed resistance to all six races. In the field high levels of dilatory resistance was observed in the sorghum genotypes CMSXS169 and CMSXS373.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sorghum bicolor; Host plant resistance.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-41582001000200014

Differences in competitive ability among races of Colletotrichum graminicola in mixtures
Provedor de dados: 102
Autores: CASELA,CARLOS R.; FERREIRA,ALEXANDRE S.; SANTOS,FREDOLINO G.
Mixtures of races of Colletotrichum graminicola, causing sorghum (Sorghum bicolor) anthracnose and differing in their virulence range, were inoculated for five and six generations on the susceptible sorghum cultivar BR009 (Tx623), in two experiments in a greenhouse. In each generation a sample of 50 single spore isolates was obtained and inoculated on a standard differential set to determine the proportion of each race in the mixture. Isolates of the race 30A, with the narrowest virulence range, predominated over isolates of the more complex races 31B, 31C and 31E indicating the existence of differences in the survival ability among races of this pathogen.
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Colletotrichum graminicola; Virulence; Fitness; Sorghum bicolor; Anthracnose.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-41582001000200019