1976
DOI: 10.1590/s0006-87051976000200010
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Comportamento de variedades de sorgo em relação a Contarinia sorghicola e Rhopalosiphum maidis em diferentes épocas de plantio

Abstract: SINOPSEA interação entre variedades de sorgo com diferentes graus de resistência à mosca (Contarinia sorghicola) (Coquillet) e ao pulgão (Rhopalosiphum maidis) (Fitch), com épocas de plantio, foi estudada em Campinas, em 1967Campinas, em -1968 Essa interação foi significativa. Algumas variedades como sumac e b. leoti, quando plantadas mais cedo, praticamente não sofreram dano de mosca, mas em plantio tardio foram completamente danificadas. Ambas são precoces e moderadamente resistentes à mosca. A variedade AF… Show more

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Cited by 3 publications
(4 citation statements)
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“…Of the genotypes that stood out for SCB resistance, hybrid AF-28 is known for possessing multiple insect resistance; in addition to SCB, the hybrid shows resistance to sorghum midge, Stenodiplosis (=Contarinia) sorghicola (Coquillet) (Diptera: Cecidomyiidae), and corn aphid, Rhopalosiphum maidis (Fitch) (Hemiptera: Aphididae). However, hybrid AF-28 exhibits undesirable agronomic characteristics, such as late development and non-erect formation (Rossetto et al, 1976;Boiça Júnior and Lara, 1983;Rossetto and Igue, 1983;Lara and Perussi, 1984;Lara et al, 1997). Therefore, evaluations of different genetic materials should not only take into account the resistance to the pest in question but should also consider other plant parameters, which can result in the identification of genotypes with all desired characteristics for cost-effective grain production.…”
Section: Discussionmentioning
confidence: 99%
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“…Of the genotypes that stood out for SCB resistance, hybrid AF-28 is known for possessing multiple insect resistance; in addition to SCB, the hybrid shows resistance to sorghum midge, Stenodiplosis (=Contarinia) sorghicola (Coquillet) (Diptera: Cecidomyiidae), and corn aphid, Rhopalosiphum maidis (Fitch) (Hemiptera: Aphididae). However, hybrid AF-28 exhibits undesirable agronomic characteristics, such as late development and non-erect formation (Rossetto et al, 1976;Boiça Júnior and Lara, 1983;Rossetto and Igue, 1983;Lara and Perussi, 1984;Lara et al, 1997). Therefore, evaluations of different genetic materials should not only take into account the resistance to the pest in question but should also consider other plant parameters, which can result in the identification of genotypes with all desired characteristics for cost-effective grain production.…”
Section: Discussionmentioning
confidence: 99%
“…The same genotype may exhibit moderate resistance to another pest while also showing different results depending on environmental conditions due to gene × environment interactions. Additionally, other parameters can affect the responses of hybrids, such as phenological asynchrony, plant age, prior infestation by other pests or diseases, atmospheric conditions, soil fertility, amongst others (Rossetto et al, 1976;.…”
Section: Discussionmentioning
confidence: 99%
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“…A variedade de sorgo-graní-fero AF-28 é resistente à mais importante praga do sorgo, a mosquinha Contariiiia sorghicola Coquillet (Diptera, Cecidomyiidae) (3). A variedade AF-28 pertence à raça caudatum e apresenta características agronômicas indesejáveis para ser diretamente aproveitada como variedade comercial: alta, tardia, não-ereta, panícula muito aberta e colmo seco.…”
Section: Introductionunclassified