Earticle

초록

영어

Four emergent macrophytes (semi-aquatic plants), Centrostachys aquatica, Polygomum pulchrum, Ischaenum hirtum and Hymenachne acutigluma, grow abundantly worldwide in natural wetlands and fresh waterways. To discover novel bio-resources for weed management, we have assessed the allelopathic potential of the aqueous methanol extracts of these species on the growth of two terrestrial weeds: barnyard grass (Echinochloa crus-galli (L). Beauv.) and rye grass (Lolium multiforum Lam), and three model test plants: alfalfa (Medicago sativa L.), cress (Lepidium sativum L.), lettuce (Lactuca sativa L.). Among the aqueous methanol extracts of the four emergent macrophytes, the C. aquatica aqueous methanol extract showed the greatest inhibitory activity, completely inhibiting the shoot and root growth of rye grass (0.1 and 0.3 g dry weight equivalent extract, respectively) and barnyard grass (1g dry weight equivalent extract). The inhibitory activity of the H. acutigluma aqueous methanol extract on shoot growth of test plant was greater than P. pulchrum and I. hirtum while aqueous methanol extract of the P. pulchrum inhibited root growth greater than H. acutigluma and I. hirtum. The inhibitory efficacy of these emergent macrophytes was dependent on their potential activity, the test plant species and concentration of the extracts. The present results that all plants may contain allelopathically active substances and that C. quatica may contain the greatest herbicidal substance(s).

목차

Abstract
 1. Introduction
 2. Materials and Methods
  2.1.Aqueous Methanol Extraction
  2.2. Bioassay
  2.3. Statistical Analysis
 3. Results
 4. Discussion
 Acknowledgements
 References

키워드

저자

• TranThi Ngoc Bich [ Kagawa University, Department of Applied Biological Science, Faculty of Agriculture, EhimeUniversity, The United Graduate School of Agricultural Science, The South College of Engineering and Agriculture, Department of Agriculture ] Corresponding author
• Hisashi Kato-Noguchi [ Kagawa University, Department of Applied Biological Science, Faculty of Agriculture, EhimeUniversity, The United Graduate School of Agricultural Science ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Bio-Science and Bio-Technology

• 간기

  격월간

• pISSN

  2233-7849

• 수록기간

  2009~2016

• 등재여부

  SCOPUS

• 십진분류

  KDC 505 DDC 605