Problemática e manejo de bancos de sementes de invasoras em solos agrícolas

Carmona, R.

doi:10.1590/S0100-83581992000100007

Resumos

No presente trabalho discute-se a problemática de bancos de sementes de invasoras em solos agrícolas, com relação a sua importância, mecanismos que garantem a manutenção de elevados números de sementes no solo e dinâmica. São também discutidas formas de manejo de bancos de sementes com ênfase nas práticas de preparo do solo e aplicação de substâncias estimulantes de germinação de sementes do solo.

plantas daninhas; sementes no solo; preparo do solo; estimulantes de germinação

The problematic of weed seed banks in the soil is discussed in terms of its importance, the mechanisms that guarantee the maintenance of large seed numbers in the soil and the dynamics of weed seed banks. The management of weed seed banks in the soil is also discussed with emphasis in the practices of soil tillage and the application of germination stimulants.

weed seeds; soil; tillage; germination stimulants

Problemática e manejo de bancos de sementes de invasoras em solos agrícolas

Problematic and management of weed seed banks in agricultural soils

R. Carmona

Eng. Agr., MSc, PhD, prof. adjunto Dep. Enga Agronômica, Universidade de Brasília, CP 04508, Brasília-DF, 70910-970

RESUMO

No presente trabalho discute-se a problemática de bancos de sementes de invasoras em solos agrícolas, com relação a sua importância, mecanismos que garantem a manutenção de elevados números de sementes no solo e dinâmica. São também discutidas formas de manejo de bancos de sementes com ênfase nas práticas de preparo do solo e aplicação de substâncias estimulantes de germinação de sementes do solo.

Palavras-chave: plantas daninhas, sementes no solo, preparo do solo, estimulantes de germinação.

ABSTRACT

The problematic of weed seed banks in the soil is discussed in terms of its importance, the mechanisms that guarantee the maintenance of large seed numbers in the soil and the dynamics of weed seed banks. The management of weed seed banks in the soil is also discussed with emphasis in the practices of soil tillage and the application of germination stimulants.

Keywords: weed seeds, soil, tillage, germination stimulants.

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Full text available only in PDF format.

LITERATURA CITADA

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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 - ADKINS, S.W.; SIMPSON, G.M. & NAYLOR, J.M. The physiological basis of seed dormancy in Avena falua III. Action of nitrogenous compounds. Physiologia Plantarum, 60: 227-233, 1984.

[2] 2 - AGENBAG, G.A. & VILLIERS, O.T. The effect of nitrogen fertilizers on the germination and seedling emergence of wild oat (Avena fatua L.) seed in different soil types. Weed Research, 29: 239-245, 1989.

[3] 3 - BABIKER, A.G. T. & HAMDOUN, A.M. Factors affecting the activity of GR7 in stimulating germination of Striga hermonthica (Del.) Benth. Weed Research, 22: 111-116, 1982.

[4] 4 _______ Factors affecting the activity of et hephon in stimulating seed germination of Striga hermonthica (Del.) Benth. Weed Research, 23 (3) : 125 -131, 1983.

[5] 5 - BAKER, A.M. & HATTON, W. Calcium peroxide as a seed coating material for pad dy rice . I - Requirements for and provision of oxygen.Plant and Soil, 99: 357-363, 1987a.

[6] 6 _______ Calcium per oxide as a seed coating mater ial for paddy rice. III - Glasshouse trials. Plant and Soil, 99: 379-386, 1987b.

[7] 7 - BAKER, H.G. Some aspects of natural history of seed banks. In: Leck, M.A.; Parker, V.T. & Simpson, R.L. (ed.) Ecology of soil seed banks. Academic Press, New York, 1989, p.9-21.

[8] 8 - BALL, D. A. Weed seed bank response to tillage, herbicides, and crop ro ta tion sequence. Weed Science, 40 (4): 654-659, 1992.

[9] 9 - BARRALI S, G. & CHADOEUF, R. Potentiel semencier des terres arables. Weed Research, 27: 417-424, 1987.

[10] 10- BASKIN, J.M. & BASKIN, C. C. The annual dormancy cycle in buried weed seeds: a continuum. Bioscience, 35 (8): 492-498, 1985.

[11] 11- BASKIN, J.M. & BASKIN, C. C. Ph ysio lo gy of dormancy and germination in relation to seed bank ecology. In: Leck, M.A.; Parker, V.T. & Simpson, R.L. (ed.). Ecology of Soil Seed Banks. Academic Press, New York, 1989, p.53-55.

[12] 12 - BEWLEY, J.D. & BLACK, M. Seeds- Physiology of development and germination. Plenum Press, New York, 1986, 367p.

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[14] 14- BOUWMEES TER, H.J. & KARSSEN, C.M. Environmental factors influencing the expression of dormancy patterns in weed seeds. Annals of Botany, 63: 113-120, 1989.

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Brasil

Brasil

Problemática e manejo de bancos de sementes de invasoras em solos agrícolas

Problematic and management of weed seed banks in agricultural soils

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