Allelopathy Journal (ALLELOPATHY J )

Publisher: International Allelopathy Foundation (Hisar, India)

Description

  • Impact factor
    0.69
    Show impact factor history
     
    Impact factor
  • 5-year impact
    0.62
  • Cited half-life
    5.10
  • Immediacy index
    0.18
  • Eigenfactor
    0.00
  • Article influence
    0.11
  • Other titles
    Allelopathy Journal
  • ISSN
    0971-4693
  • OCLC
    32335245
  • Material type
    Periodical
  • Document type
    Journal / Magazine / Newspaper

Publications in this journal

  • [Show abstract] [Hide abstract]
    ABSTRACT: The phytotoxic potential of faba bean (Vicia faba L.) was evaluated by both soil-based and aqueous extract laboratory bioassays. A preliminary bioassay was conducted in Petri dishes filled with faba bean-amended soil. The results revealed strong inhibitory effects on the early growth of the model species lettuce. The phytotoxic potential of aqueous extracts of faba bean aerial biomass was then determined on lettuce, maize and soybean as model crops in a temperate forage-based system, and Amaranthus retroflexus (redroot pigweed), Echinochloa crus-galli (barnyard grass) and Digitaria sanguinalis (large crabgrass) as the most common associated weeds. Dose-response curves and IC50 and IC90 values for faba bean aqueous extracts were obtained. The results indicate that faba bean aqueous extracts significantly inhibited the germination and early growth of weeds. Except for the highest concentration, crops were not affected, or crops growth was enhanced by the aqueous extracts at concentrations that suppressed the weeds. Thus faba bean aerial biomass may be a promising material for weed control in sustainable-based crop systems.
    Allelopathy Journal 10/2014; 34:299-314.
  • Allelopathy Journal 01/2014; 33(1):43-52.
  • [Show abstract] [Hide abstract]
    ABSTRACT: Brassicacea members camelina (Camelina sativa) and canola (Brassica napus) were examined for allelopathic activity against wild oat (Avena fatua), flax (Linum usitatissimum), and radish (Raphanus sativus). This 4-part study investigated the effects of leaf washings, aqueous extracts, soil incorporated fresh plant residues and root exudates on seedling weight. The effects of aqueous extracts on germination were also quantified. Camelina and canola leaf washings increased radish seedling weight, while only canola increased flax weight. Where effects were observed, aqueous extracts of camelina and canola reduced the germination of wild oat, flax and radish. Wild oat and radish seedlings had reduced root weight and increased shoot weight in response to aqueous extracts. Incorporation of camelina or canola fresh plant residues into growth media increased radish weight, while only canola residues increased wild oat biomass. Canola root exudates decreased wild oat weight, but increased radish weight. Camelina exudates decreased flax weight. Aqueous extracts predominantly contained volatile sulfur containing compounds (methanethiol, dimethyl sulfide, dimethyl disulfide and dimethyl trisulfide) as potential allelochemicals. Further research will focus on confirming the allelopathic activity of candidate allelochemicals. Variable results between the different assays and the species investigated reflect the challenges of identifying a true allelopathic interaction between species and the need for rigorous and multi-part analyses, requiring subsequent confirmation in an ecological context.
    Allelopathy Journal 01/2014; 33(1):83.
  • Allelopathy Journal 01/2014;
  • [Show abstract] [Hide abstract]
    ABSTRACT: This study determined the chemical contents of dichloromethane bark extract of I. murucoides that inhibited the seed germination in T. recurvata. Dichloromethane bark extract was subjected to two consecutive fractionations. The inhibition (%) of T. recurvata seed germination was determined for each resulting fractions. Using gas chromatography-mass spectrometry (GCMS), the components of primary fraction with the highest inhibition were analyzed, as well as secondary fractions derived from this primary fraction. The primary fraction G (CH2Cl2:AcOEt (v/v 1:1)) had the highest inhibitory effects on T. recurvata seed germination. The secondary fractions G1 (Hex:CH2Cl2 (mean concentration v/v 3:7), G5 [CH2:Cl2:AcOEt (v/v 7:3)] and G7 (MeOH) were most inhibitory. Among the compounds of active primary fraction and secondary fractions G5 and G7, n-hexadecanoic acid were identified as compounds with possible allelopathic activity. However, these were not present in secondary fraction G1, it had the allelochemical 3,7,11,15-tetramethyl-2-hexadecen-1-ol. Results indicated that there were three active secondary fractions with different chemical composition but none of these inhibited the seed germination of T. recurvata. The inhibitory effects of dichloromethane extract of I. murucoides tends to diminish with fractionation, it is possible that the activity of components may be greater when they act together than when they act individually, However, further research is needed in this direction.
    Allelopathy Journal 01/2013; 32(1):91-100.
  • [Show abstract] [Hide abstract]
    ABSTRACT: Allelopathic effects of Pueraria javanica cover crop grown under oil palm and its litter on control of weeds (Asystasia gangetica and Pennisetum polystachion) in oil palms was explored in laboratory bioassay and potculture. In Lab bioassay, the litter leachates of P. javanica significantly reduced the seed germination (%) and delayed the seed germination of Asystasia gangetica but did not affect the germination (%) and seed germination time of Pennisetum polystachion. Pueraria javanica leachates significantly reduced the radicle lengths of both A. gangetica and P. polystachion seedlings. The inhibitory effect was higher on P. polystachion growth, P. javanica at the highest concentration (50 g L-1) caused 43% reduction in radicle length than 23% reduction in Asystasia gangetica. However in pot culture, the increasing concentrations of P. javanica leachate-amended soils did not affect the root and shoot lengths, dry weight and chlorophyll concentration of A. gangetica and P. polystachion seedlings. The decomposition study of P. javanica in soil showed that the phenolic compounds in P. javanica litter did not remain stable in soil for > 6 weeks. The allelopathic effects of P. javanica litter on germination depended on weed species, but P. javanica litter did not interfere with seedling growth of test weed species. The allelopathic activity did not persist for long periods of time in soil.
    Allelopathy Journal 01/2013; 32(2):191-*202.