Resumo
A non-choice type of experiment was conducted in a greenhouse at Campinas to study the oviposition of B. tabaci on two introductions (PI 171451 and PI 229358) and one commercial variety (Santa Rosa) of soybean. Previously these introductions were less oviposited by the whitefly in a free-choice type of experiment when compared to commercial varieties. The observed average number of eggs per square centimeter of leaf were 0.82, 0.42 and 0.41 for 'Santa Rosa' susceptible, PI 171451 (resistant) and PI 229358 (resistant), respectively. These results showed that the lower rate of for oviposition observed previously is maintained when the insect does not have a chance to oviposit on a susceptible variety.
NOTAS
Oviposição de Bemisia tabaci (genn.) (Homoptera: aleyrodidae) em três variedades de soja sem chance de escolha
Oviposition of Bemisia tabaci (genn.) (homoptera:aleyrobidae) on three soybean varieties in a non-choice type of experiment
André Luiz LourençãoI, *; Valdir Atsushi YukiII
ISeção de Entomologia Fitotécnica, IAC
IISeção de Virologia Fitotécnica, Instituto Agronômico, IAC
SUMMARY
A non-choice type of experiment was conducted in a greenhouse at Campinas to study the oviposition of B. tabaci on two introductions (PI 171451 and PI 229358) and one commercial variety (Santa Rosa) of soybean.
Previously these introductions were less oviposited by the whitefly in a free-choice type of experiment when compared to commercial varieties.
The observed average number of eggs per square centimeter of leaf were 0.82, 0.42 and 0.41 for 'Santa Rosa' susceptible, PI 171451 (resistant) and PI 229358 (resistant), respectively.
These results showed that the lower rate of for oviposition observed previously is maintained when the insect does not have a chance to oviposit on a susceptible variety.
Texto completo disponível apenas em PDF.
Full text available only in PDF format.
Recebida para publicação a 11 de julho de 1980.
* Com bolsa de suplementação do CNPq.
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- 2. COSTA, A. S.; COSTA, C. L.; SAUER, H. F. G. Surto da mosca-branca em culturas do Paraná e São Paulo. Anais da Sociedade Entomológica do Brasil, Piracicaba. 2(1):20-30, 1973.
- 3. HATCHETT, J. H.; BELAND, G. L.; HARTWIG, E. E. Leaffeeding resistance to bollworm and tobacco budworm in three soybean plant introductions. Crop Science, 16(2):277-280, 1976.
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- 5. ROSSETTO, D.; COSTA, A. S.; MIRANDA, M. A. C.; NAGAI, V.; ABRAMIDES, E. Diferenças na oviposição de Bemisia tabaci em variedades de soja. Anais da Sociedade Entomológica do Brasil, Piracicaba, 6(2) :256-263, 1977.
- 6. TURNIPSEED, S. G. & KOGAN, M. Soybean entomology. Annual Review of Entomology, 21:247-282, 1976.
- 7. VAN DUYN, J. W.; TURNIPSEED, S. G.; MAXWELL, J. D. Resistance in soybeans to the Mexican bean beetle. I. Sources of resistance. Crop Science, 11(4):572-573. 1971.
Datas de Publicação
-
Publicação nesta coleção
17 Dez 2007 -
Data do Fascículo
1982
Histórico
-
Recebido
11 Jul 1980
