Efeitos do herbicida lactofen sobre três cultivares de soja I. Alterações morfológicas externas e internas de folhas

Damião Filho, C.F.; Corso, G.M.; Andrade, E V.M. De M.

doi:10.1590/S0100-83581992000100006

Resumos

O lactofen, herbicida do grupo dos difenil éteres, é indicado para uso na cultura da soja, em pós-emergência, devido sua eficácia no controle de plantas daninhas latifoliadas. No presente trabalho, conduzido em casa-de-vegetação, foram utilizadas as cultivares de soja Foscarin-31, IAC-8 e IAC-9, tratadas com lactofen nas doses 0,018 e 0,36 kg de lactofen i.a./ha, aplicadas quando as plantas apresentavam a Segunda folha composta totalmente expandida. Aos quatro e doze dias após as aplicações, foram analisadas e descritos os sinais macroscópicos e microscópicos de intoxicação nos folíolos das folhas. Os resultados indicaram que o lactofen ocasionou expressivas alterações morfológicas externas e internas das folhas, nos locais onde foi depositado, e que a dose maior acentua os efeitos do produto sobre as plantas, sendo que as cultivares de soja apresentaram diferentes graus de sensibilidade ao produto.

lactofen; doses; soja; alterações morfológicas e histológicas

Lactofen, a diphenil ether herbicide, is indicated for use in soybean crop, at post-emmergence, due to its efficacy on broad-leaf weed control. In the present assay, under greenhouse conditions, soybean cultivars as Foscarin-31, IAC-8 and IAC 9 were used. The herbicide was applyed at the 2nd whole expanded composed leaf stage at 0, 0.18 and 0,36 kg of lactofen a.i./ha. At four and twelve days after applications, external and internal morphological aspects on the attainned leaves were evaluate. Results showed that the lactofen generally raised injurious effects in the loci where it was deposited. Sensitivity of the three tested soybean cultivars to the herbicide was different.

lactofen; rates; soybean; morphological and histological alterations

Efeitos do herbicida lactofen sobre três cultivares de soja I. Alterações morfológicas externas e internas de folhas

C.F. Damião Filho^I; G.M. Corso^II; E V.M. De M. Andrade^III

^IProfessor Assistente-Doutor da FCAV-UNESP, campus de Jaboticabal. 14870-000 Jaboticabal,SP

^IIProfessora Assistente-Doutora do IB-UNESP, campus de Rio Claro. 13506-900 Rio Claro, SP

^IIIProfessora Assistente-Doutora da FCAV-UNESP, campus de Jaboticabal. 14870-000 Jaboticabal,SP

RESUMO

O lactofen, herbicida do grupo dos difenil éteres, é indicado para uso na cultura da soja, em pós-emergência, devido sua eficácia no controle de plantas daninhas latifoliadas. No presente trabalho, conduzido em casa-de-vegetação, foram utilizadas as cultivares de soja Foscarin-31, IAC-8 e IAC-9, tratadas com lactofen nas doses 0,018 e 0,36 kg de lactofen i.a./ha, aplicadas quando as plantas apresentavam a Segunda folha composta totalmente expandida. Aos quatro e doze dias após as aplicações, foram analisadas e descritos os sinais macroscópicos e microscópicos de intoxicação nos folíolos das folhas. Os resultados indicaram que o lactofen ocasionou expressivas alterações morfológicas externas e internas das folhas, nos locais onde foi depositado, e que a dose maior acentua os efeitos do produto sobre as plantas, sendo que as cultivares de soja apresentaram diferentes graus de sensibilidade ao produto.

Palavras-chave: lactofen, doses, soja, alterações morfológicas e histológicas.

SUMMARY

Lactofen, a diphenil ether herbicide, is indicated for use in soybean crop, at post-emmergence, due to its efficacy on broad-leaf weed control. In the present assay, under greenhouse conditions, soybean cultivars as Foscarin-31, IAC-8 and IAC 9 were used. The herbicide was applyed at the 2nd whole expanded composed leaf stage at 0, 0.18 and 0,36 kg of lactofen a.i./ha. At four and twelve days after applications, external and internal morphological aspects on the attainned leaves were evaluate. Results showed that the lactofen generally raised injurious effects in the loci where it was deposited. Sensitivity of the three tested soybean cultivars to the herbicide was different.

Key-words: lactofen, rates, soybean, morphological and histological alterations.

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LITERATURA CITADA

1- ANDEL, O.M . VAN; ZWEE P, W. VAN -DER; BORTER, C.J. Morphogenetic response of plants. In: AUDUS, L.J., ed. Herbicides, 2.ed., London, Academic Press, 1976. v.2, p.127-163.
2 - EVANS, L.S. & CURRY, T.M. Differencial responses of plant foliage to simulated acid rain. Amer. J. Bot., 66(8): 953-962, 1979.
3 - FAHN, A. Anatomia Vege ta l. Madr id , H. Blume Ediciones, 1978.643 p.
4- FRANCESCHI , V. R. & GIAQUINTA, R. T. The paravenal mesophyll of soybean leaves in relation to assimilate transfer and compartmentation. II - Structural, metabolic and compartmental changes during reproductive growth. Planta, 157: 423-431, 1983.
5 - GAllIERO, D.L.P. & NEUMAIER, N. Sintomas e diagnose de fitotoxidade de herbicidas na cultura da soja. Londrina, EMBRAPA/CNPSo, 1985. 56p. (Documentos, 13).
6 - HAGWOOD, H.B.; NICHOLS, R.L.; BATES, M.R.; TRAMIMELL JR., C.A. Lactofen for broadleaf weed control in pe anuts . In: SOUT HERN WEED SCIENCE SOCIETY ANNUAL MEETING, 33th, Chamapaign, Illinois, USA, 1985. Proceedings. p32.
7- HERTWIG, K.V.; RIBEIRO, L.V.; BRASCH, E.; SANTOS, J .M.F. d o s ; NOGUEIRA, C. ; SUGISAKI, A. Manual de herbicidas, desfolhantes, dessecantes a fito rreguladores. Săo Paulo, Agronômica Ceres, 1977.480p.
8 - HIGGINGS, J.M.; WHITWELL, T. ; MURDOCK, E.C.; TOLER, J.E. Recovery of pitted momingglory (Ipomoea lacunosa) and ivyleaf morningglory (Ipomoea hederacea) following applications of acifluorfen, fomesafen, and lactofen. Weed Science, 36(3): 345-353, 1988.
9 - HIGGINS, J.M.; WHITWEEL, T.; CORBIN, F.T.; CARTER JR., G.E.; HILL JR., H.S. Absorption, translocation, and metabolism of acifluorfen and lactofen in pitted morningglory (Ipomoea lacunosa) and ivyleaf morningglory (Ipomoea hederacea). Weed Science, 36(2): 141-145, 1988.
10 - JOHANSEN, D.A. Plant microtechnique. New York, McGraw-Hill Book, 1940. 523p.
11 - KIHARA, R. El uso de graminicidas en soja an los ultimos anos. In: IV CONFERENCIA MUNDIAL DE INVESTIGACION EN SOJA, 1989 . Proceedings. p.1613-1619.
12 - L'EPISCOPO, E.V. El control de latifoliadas en soja con herbicidas de post-emergencia en la Republica Argentina. In: IV CONFERENCIA MUNDIAL DE INVESTIGACION EN SOJA, 1989. Proceedings. p.1650-1654.
13 - LINK, A.J. Effects on the citology and fine structure of plant cells. In: ALDUS, L.J., ed. Herbicides. 2.ed. London, Academic Press, 1976. p.83-125.
14 - McGINNITY, PJ. & COLE, R.M. Phytotoxicity and yield response to postemergence applications of lactofen on early maturing soybean varieties. In: NORTH CENTRAL WEED CONTROL CONFERENCE, St. Louis, Missouri, USA, 1985. Proceedings. p.79.
15 - MULLER, L. Taxonomi a e Mor fologia. In: MIYASAKA, S. & MEDINA, J.C., ed. A soja no Brasil . Secçăo de Divulgaçăo do Instituto de Tecnologia de Alimentos, ITAL, Săo Paulo, 1981. p.65-108.
16 - OLIVER, L.R. Factors affecting her bicide rat e in soybeans: strategies for reduced herbicide rates. In: IV CONFERENCIA MUNDIAL DE INVESTIGACION EN SOJA, 1989. Proceedings. p.1613-1619.
17 - REGNAULT, Y. The destruction of weed-dicotyledons in soybean with postemergence treatments. In: IV CONFERENCIA MUNDIAL DE INVESTIGACION EN SOJA, 1989. Proceedings. p.1677-1682.
18 - SEDIYAMA, T.; PEREIRA, M.G.; SEDIYAMA, C.S.; GOMES, J.L.P. A cultura da soja. II parte. Viçosa, MG, Imprensa Universitária da UFV, 1985.75p.
19 - SCHOTT, P.E. ; HANF, M. ; O'NEAL, D. ; SCHELB ERGER, K.; SCHOROEDER, M.; WARE, T.; JOHN, T. A decimal code for the developme nt st age s of a so yb ean plant - a prerequisite for progressive bioregulator research and us e. In: PGRSA ANNUAL MEETING, Honolulu, Hawaii, USA, 1987. Proceedings. p.2-6.
20 - SHEPERD, H.E.; McGINNITY, PJ.; BATES, M.R.; KAMICKER, T.A. Yield response of soybeans to postemergence applications of lactofen. In: NORTH CENTRAL WEED CONTROL CONFERENCE, Winnipeg, Manitoba, Canada, 1984. Proceedings. p.36.
21 - WHITE, O.E. Fasciation. The Botanical Review, 24(6): 319-358,1948.

Datas de Publicação

Publicação nesta coleção
18 Maio 2012
Data do Fascículo
1992

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

[1] 1- ANDEL, O.M . VAN; ZWEE P, W. VAN -DER; BORTER, C.J. Morphogenetic response of plants. In: AUDUS, L.J., ed. Herbicides, 2.ed., London, Academic Press, 1976. v.2, p.127-163.

[2] 2 - EVANS, L.S. & CURRY, T.M. Differencial responses of plant foliage to simulated acid rain. Amer. J. Bot., 66(8): 953-962, 1979.

[3] 3 - FAHN, A. Anatomia Vege ta l. Madr id , H. Blume Ediciones, 1978.643 p.

[4] 4- FRANCESCHI , V. R. & GIAQUINTA, R. T. The paravenal mesophyll of soybean leaves in relation to assimilate transfer and compartmentation. II - Structural, metabolic and compartmental changes during reproductive growth. Planta, 157: 423-431, 1983.

[5] 5 - GAllIERO, D.L.P. & NEUMAIER, N. Sintomas e diagnose de fitotoxidade de herbicidas na cultura da soja. Londrina, EMBRAPA/CNPSo, 1985. 56p. (Documentos, 13).

[6] 6 - HAGWOOD, H.B.; NICHOLS, R.L.; BATES, M.R.; TRAMIMELL JR., C.A. Lactofen for broadleaf weed control in pe anuts . In: SOUT HERN WEED SCIENCE SOCIETY ANNUAL MEETING, 33th, Chamapaign, Illinois, USA, 1985. Proceedings. p32.

[7] 7- HERTWIG, K.V.; RIBEIRO, L.V.; BRASCH, E.; SANTOS, J .M.F. d o s ; NOGUEIRA, C. ; SUGISAKI, A. Manual de herbicidas, desfolhantes, dessecantes a fito rreguladores. Săo Paulo, Agronômica Ceres, 1977.480p.

[8] 8 - HIGGINGS, J.M.; WHITWELL, T. ; MURDOCK, E.C.; TOLER, J.E. Recovery of pitted momingglory (Ipomoea lacunosa) and ivyleaf morningglory (Ipomoea hederacea) following applications of acifluorfen, fomesafen, and lactofen. Weed Science, 36(3): 345-353, 1988.

[9] 9 - HIGGINS, J.M.; WHITWEEL, T.; CORBIN, F.T.; CARTER JR., G.E.; HILL JR., H.S. Absorption, translocation, and metabolism of acifluorfen and lactofen in pitted morningglory (Ipomoea lacunosa) and ivyleaf morningglory (Ipomoea hederacea). Weed Science, 36(2): 141-145, 1988.

[10] 10 - JOHANSEN, D.A. Plant microtechnique. New York, McGraw-Hill Book, 1940. 523p.

[11] 11 - KIHARA, R. El uso de graminicidas en soja an los ultimos anos. In: IV CONFERENCIA MUNDIAL DE INVESTIGACION EN SOJA, 1989 . Proceedings. p.1613-1619.

[12] 12 - L'EPISCOPO, E.V. El control de latifoliadas en soja con herbicidas de post-emergencia en la Republica Argentina. In: IV CONFERENCIA MUNDIAL DE INVESTIGACION EN SOJA, 1989. Proceedings. p.1650-1654.

[13] 13 - LINK, A.J. Effects on the citology and fine structure of plant cells. In: ALDUS, L.J., ed. Herbicides. 2.ed. London, Academic Press, 1976. p.83-125.

[14] 14 - McGINNITY, PJ. & COLE, R.M. Phytotoxicity and yield response to postemergence applications of lactofen on early maturing soybean varieties. In: NORTH CENTRAL WEED CONTROL CONFERENCE, St. Louis, Missouri, USA, 1985. Proceedings. p.79.

[15] 15 - MULLER, L. Taxonomi a e Mor fologia. In: MIYASAKA, S. & MEDINA, J.C., ed. A soja no Brasil . Secçăo de Divulgaçăo do Instituto de Tecnologia de Alimentos, ITAL, Săo Paulo, 1981. p.65-108.

[16] 16 - OLIVER, L.R. Factors affecting her bicide rat e in soybeans: strategies for reduced herbicide rates. In: IV CONFERENCIA MUNDIAL DE INVESTIGACION EN SOJA, 1989. Proceedings. p.1613-1619.

[17] 17 - REGNAULT, Y. The destruction of weed-dicotyledons in soybean with postemergence treatments. In: IV CONFERENCIA MUNDIAL DE INVESTIGACION EN SOJA, 1989. Proceedings. p.1677-1682.

[18] 18 - SEDIYAMA, T.; PEREIRA, M.G.; SEDIYAMA, C.S.; GOMES, J.L.P. A cultura da soja. II parte. Viçosa, MG, Imprensa Universitária da UFV, 1985.75p.

[19] 19 - SCHOTT, P.E. ; HANF, M. ; O'NEAL, D. ; SCHELB ERGER, K.; SCHOROEDER, M.; WARE, T.; JOHN, T. A decimal code for the developme nt st age s of a so yb ean plant - a prerequisite for progressive bioregulator research and us e. In: PGRSA ANNUAL MEETING, Honolulu, Hawaii, USA, 1987. Proceedings. p.2-6.

[20] 20 - SHEPERD, H.E.; McGINNITY, PJ.; BATES, M.R.; KAMICKER, T.A. Yield response of soybeans to postemergence applications of lactofen. In: NORTH CENTRAL WEED CONTROL CONFERENCE, Winnipeg, Manitoba, Canada, 1984. Proceedings. p.36.

[21] 21 - WHITE, O.E. Fasciation. The Botanical Review, 24(6): 319-358,1948.

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Efeitos do herbicida lactofen sobre três cultivares de soja I. Alterações morfológicas externas e internas de folhas

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