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The Bioassay Technique in the Study of the Herbicide Effects

P. Sandín-España,Í. Loureiro,C. Escorial,C. Chueca,I. Santín-Montanyá

Published 2011 in Unknown venue

ABSTRACT

Strategies for weed control are based primarily on chemical control, since the last decades the use of synthetic chemical products has been dramatically increased. The use of plant protection products is a source of concern for the society of developed countries, which has a growing interest in the environment, nature conservation and public health in general. This situation has led to deep changes in the objectives of the research on agriculture. The development and implementation of sustainable agriculture conduct to a rational use of plant protection products. The regulatory organisms (national and international) and the chemical industry of pesticides have taken steps to reduce the environmental impact of such organic compounds. In this context, there is now a great concern about the chemical nature of the products used in agriculture and its impact on adjacent ecosystems and the toxicity of these substances in ground and surface water. The widespread use of herbicides create also concern about the possibilities of the risk of phytotoxicity on other species which are not direct object of the treatment. On the one hand, the risk involved in rotational crops due to of the accumulation in the field of herbicides that have a high persistence and are applied repeatedly each year, and on the other hand, the crops or plants adjacent to the treated crop may be affected by herbicide drift during the application of the product (Pestemer & Zwerger, 1999). On the basis of these considerations, the risk assessment of the use of plant protection products on non-target plants should focus taking into account the agronomic use of the product. In this context, the bioassay technique is a useful tool that complements the analytical methods and provides information regarding herbicide bioavailability for the plant and its possible phytotoxicity (Kotoula-Syka et al., 1993; Stork & Hannah, 1996). Therefore, in the case of herbicides, we can define two groups according to good agricultural practices: the vegetation adjacent of agriculture areas and successive crops in the rotation.

PUBLICATION RECORD

  • Publication year

    2011

  • Venue

    Unknown venue

  • Publication date

    2011-01-08

  • Fields of study

    Agricultural and Food Sciences, Environmental Science

  • Identifiers
    DOI 10.5772/13571
  • External record

    Open on Semantic Scholar

  • Source metadata

    Semantic Scholar

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