Physiological and biochemical effects of Lantana camara L. allelochemicals on the seed germination of Avena sativa L.

Author:

Gindri Diego Medeiros1ORCID,Coelho Cileide Maria Medeiros2ORCID,Uarrota Virgilio Gavicho3ORCID

Affiliation:

1. Companhia Integrada de Desenvolvimento Agrícola de Santa Catarina, Brasil

2. Universidade do Estado de Santa Catarina, Brasil

3. Pontificia Universidad Católica de Valparaiso, Chile

Abstract

ABSTRACT Lantana camara (L.) is considered one of the main weeds of agricultural crops, and allelochemicals produced by this species may be a source for the development of natural herbicides. In this study, phytotoxic effects of L. camara aqueous extracts on seed germination and seedling growth of Avena sativa (L.) were assessed. The experimental design was completely randomized, in a 2 x 5 factorial scheme, with treatments resulting from two assays, testing five concentrations of the extract (0 %, 2.5 %, 5.0 %, 7.5 % and 10 %; vv-1). During the seed germination, physiological (e.g., seed imbibition, germination and vigor) and biochemical (e.g., catalase, ascorbate peroxidase, proline, phenols, malondialdehyde and hydrogen peroxide) proprieties were evaluated. The leaf extracts of L. camara affected the response variables on A. sativa by reducing the germination speed index (phases I and II) and seed viability (phase III of germination), thus causing a solute leakage and increasing the production of reactive oxygen forms and, finally, lipid peroxidation. Extract concentrations above 2.5 % inhibit the growth of epicotyls. Therefore, the studied allelochemicals showed potential to be exploited in the development of natural herbicides.

Publisher

FapUNIFESP (SciELO)

Subject

Agronomy and Crop Science

Reference48 articles.

1. The inhibitory effects of coumarin on the germination of durum wheat (Triticum turgidum ssp. durum, cv. Simeto) seeds;ABENAVOLI M. R.;Journal of Chemical Ecology,2006

2. Allelopathic effects of spurge (Euphorbia hierosolymitana) on wheat (Triticum durum);ABU-ROMMAN S.;American Eurasian Journal of Agricultural & Environmental Sciences,2010

3. The effect of drought and ultraviolet radiation on growth and stress markers in pea and wheat;ALEXIEVA V.;Plant Cell Environment,2001

4. Respostas fisiológicas de sementes e plântulas de alface submetidas ao extrato de Philodendron bipinnatifidum;AUMONDE T.;Semina: Ciências Agrárias,2013

5. Response of antioxidant enzymes to transfer from elevated carbon dioxide to air and ozone fumigation, in the leaves and roots of wild-type and a catalase-deficient mutant of barley;AZEVEDO R. A.;Physiologia Plantarum,1998

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3