Allelopathy Journal (ALLELOPATHY J)

Publisher: International Allelopathy Foundation (Hisar, India)

Current impact factor: 0.52

Impact Factor Rankings

2016 Impact Factor Available summer 2017
2014 / 2015 Impact Factor 0.523
2013 Impact Factor 0.578
2012 Impact Factor 0.685
2011 Impact Factor 0.846
2010 Impact Factor 0.635
2009 Impact Factor 0.793
2008 Impact Factor 0.525
2007 Impact Factor 0.672
2006 Impact Factor 0.48
2005 Impact Factor 0.686
2004 Impact Factor 0.354
2003 Impact Factor 0.52
2002 Impact Factor 0.514

Impact factor over time

Impact factor
Year

Additional details

5-year impact 0.60
Cited half-life 6.00
Immediacy index 0.18
Eigenfactor 0.00
Article influence 0.14
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: Previously we found that soil in the late-successional-stage forest exerted the strongest allelopathic effects on invasive plants and soil in this forest had the highest concentration of abscisic acid (ABA). Therefore, we hypothesize that ABA may function as the "chemical shields" of forest communities against non-native invaders. Here we explored the allelopathic effects of ABA on 8-invasive species (Ageratum conyzoides, Bidens pilosa, Eupatorium catarium, Ipomoea triloba, Pharbitis nil, Mikania micrantha, Ipomoea cairica, Sphagneticola trilobata) in southern China. We found that ABA inhibited the germination and vegetative growth of most test invasive plants and the inhibitory effects were dose-dependent, though the responses of invasive plants to ABA differed in the soil culture and hydroponic culture experiments. We suggest that as succession proceeds, increasing ABA concentrations in soil should provide forests with increasing resistance to invasive plants. Our results provide a direct evidence for how 'novel' allelopathic traits of natives may contribute to the resistance to non-native plant invasion.
    No preview · Article · Oct 2015 · Allelopathy Journal
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    ABSTRACT: To explore the possibility of planting the trees at later stage in C. equisetifolia forest, the effects of root, soil and litter aqueous extracts of C. equisetifolia forests of 3- ages (Young forest : 5-8 y; Middle-aged forest : 15-20 y; Mature forest: >30 y) were examined on germination of 3- native tree species (Vatica mangachapoi, Thespesia lampas, and Calophyllum inophyllum). The aqueous extracts suppressed the seed germination of above 3- native tree species and the extracts from mature forest rhizosphere soils, were most allelopathic. The inhibitory effects of extracts on C. inophyllum was weaker than on V. mangachapoi and T. lampas. The chemical componetnts in root, rhizosphere soil and litter extracts of Casuarina equisetifolia of different stages were characterized by GC-MS. The number of components found in litter and roots extracts were more than in soil extract.
    No preview · Article · Oct 2015 · Allelopathy Journal
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    ABSTRACT: The allelopathic potential of mugwort was evaluated in laboratory, glasshouse and field assays to control the Italian ryegrass (L. multiflorum) in winter wheat (Triticum aestivum L.). Extracts of mugwort inhibited the seed germination and radicle and hypocotyl lengths of Sinapis alba L. and followed the order: leaf extracts > stem extracts > rhizome extracts. The aqueous extract of aerial biomass (leaves + stems) of mugwort at the highest concentration (25% w/v) may be considered as a potent inhibitor of seed germination and plant growth of L. multiflorum. The application of aqueous extract on the soil surface as pre-emergence herbicide was found most effective for maximum efficacy against weeds. However, the bioactivity of mugwort extract in soil decreased with the increase in extract concentration. In field experiments, the mugwort extract (20% w/v) alone gave efficacy of 50% against L. multiflorum; furthermore, the dose of chlorsulfuron was reduced up to 80%, when aqueous extract were added in the spray solution. The mugwort extract alone or in mixture with chlorsulfuron significantly increased the wheat yield in the field. The extract of mugwort used as foliar bioherbicide did not control L. multiflorum.
    No preview · Article · Oct 2015 · Allelopathy Journal
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    ABSTRACT: The hydroxycinnamic acids are well-known compounds responsible for plant growth inhibition in allelopathic relationships. In this study, seedling roots of garden pea, sweet maize and radish were subjected to allelopathic stress by treatment with two derivatives of cinnamic acid: ferulic and p-coumaric acids at concentration of 0.5 mM (maize) and 1 mM (pea and radish). In the roots of three test species treated with ferulic and p-coumaric acids, syringaldazine peroxidase (POX; EC 1.11.17), phenylalanine ammonia-lyase (PAL; EC 4.3.1.5) and lignin content were determined. It was found that hydroxycinnamic acids treatments increased the activities of assayed enzymes, which intensified the lignin synthesis. Lignin production was negatively correlated with root growth. It was suggested that the inhibition of root growth induced by ferulic and p-coumaric acids could be due to lignification, which may be a widespread mechanism in plants.
    No preview · Article · Oct 2015 · Allelopathy Journal
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    ABSTRACT: In agriculture soil sickness is a major problem, which reduces the crops yield. It is caused by various factors viz., soil nutrients imbalance, autotoxins production and accumulation, changes in soil microbial community structure (development of harmful microbes). Soil sickness is major problenm in Food crops (Rice, wheat, corn, mungbean. soybean etc), Cash ceops (Sugarcane, tobacco, peanut), Vegtetables (Cucumber, eggplant, aspragus, watermelon, muskmelon, tomato, potato, ginger etc), medicinal plants (Rehmania, ginseng, Angelica etc), Fruit trees (Apple, Citrus spp., peach, tea, coffee etc) and forest trees (Chinese fir, Casuarina spp). This review discusses the (i). Problem of soil sickness in various crops, medicinal plants, forestry and horticultural trees in terrestrial cropping and hydroponics, (ii). Role of soil physico-chemical properties, allelopathic autotoxins and rhizosphere microflora, (iii). Mechanism of soil sickness and (iv). Suggest methods to overcome this problem.
    No preview · Article · Oct 2015 · Allelopathy Journal
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    ABSTRACT: We investigated the allelopathic potential of American and Chinese chestnut leaves on germination and seedling growth (radicle, plumule, length, dry weight) of dicotyledons (lettuce, radish and cucumber) and monocotyledons (onion, rice and wheat). The allelopathic intensity of water extracts of two chestnuts along with 11 eluting fractions (separated by X-5 macroporous resins) was compared. The most allelopathic fraction of the two water extracts was analyzed by standard substance counter evidence experiment. The water extract of Chinese chestnut leaf was more allelopathic than American chestnut leaf extracts, to inhibit the seed germination and seedling growth of cucumber, lettuce, onion, radish, rice and wheat. In bioassays, the 7:3, 6:4 and 5:5 elution fractions of both American chestnut and Chinese chestnut extracts contained allelochemicals, and the strongest allelopathic fraction (5:5) contained chlorogenic acid, p-hydroxybenzoic acid, protocatechuic acid, gallic acid, etc. The differences in chemical ecology characteristics between American chestnut and Chinese chestnut should not be ignored by restoration ecologists.
    No preview · Article · Oct 2015 · Allelopathy Journal
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    ABSTRACT: To determine the reasons for increase in the yield and quality of Achyranthes with the increase in years of planting, the soil bacterial community was analyzed using the terminal restriction fragment length polymorphism (T-RFLP). Results showed that with the increase in the number of years of continuous monoculture, the soil bacterial diversity gradually decreased and the bacteria involved in carbon, nitrogen, sulfur cycling accumulated.
    No preview · Article · Oct 2015 · Allelopathy Journal
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    ABSTRACT: The allelopathic effects of 3-relatively abundant volatile compounds [n-octane, 2,4-di-tert-butyl phenol and 2,2 '-methylene bis (6-tert-butyl-4-methyl phenol)] present in the soil of Eucalyptus granclis plantation (1-10 years old) were studied on the seed germination, seedling growth and two physiological indicators [(seedling's malondialdehyde (MDA) and roots' vitality (by triphenyl tetrazolium chloride (TTC)] of Vigna radiata, Raphanus sativus and Lactuca sativa. The inhibitory effects of 2, 4-di-tert-butyl phenol was strongest on the target plants. The three volatile compounds at high concentrations [n-octane, 1%; 2,4-di-tert-butyl phenol, 10 mmol/E; 2,2 '-methylene bis (6-tert-butyl-4-methyl phenol)], 10 mmol/E) inhibited the seed germination, root length, seedling height and the seedling / root fresh weight ratio of Vigna radiata, Raphanus sativus and Lactuca sativa, but low concentrations were less inhibitory or stimulatory. All three volatile compounds at low concentrations were slightly stimulatory to seedling's MDA content and were less inhibitory to seedlings roots' vitality TTC. At low concentrations, the n-octane and 2, 2'-methylene bis (6-tert-butyl -4- methyl phenol) were less stimulatory to the seedlings root's vitality. However, 2, 2'-methylene bis (6-tert-butyl -4- methyl phenol) even at lower concentrations inhibited the V. radiata seedling's MDA content
    No preview · Article · Oct 2015 · Allelopathy Journal
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    ABSTRACT: We studied the structure and functional diversity of microbial community in soil under long term continuous monoculture of A. bidentata, using the Community-level physiological profiles (CLPP), phospholipid fatty acid (PLFA) analysis and terminal restriction fragment length polymorphism (T-RFLP) analysis. Biolog analysis showed that the catabolic diversity of 20-years monoculture was similar to control soil. In PLFA analysis, the Gram (-)/Gram (+) bacterial ratio showed no significant difference among the control and soils of 2-years and 20-years monocultures. The actinomycetes population was higher in 20-years monoculture than control and 2-years monoculture soils. Also, the Cy/Pre ratio (an indicator of physiological stress), was significantly higher in 2-years monoculture soil than control and 20-years monoculture soils. The abundance of probiotic bacteria was higher in 20-years monoculture soil than in 2-years monoculture. These results showed that the soil microbial environment remained in a good state under A. bidentata continuous monoculture system for a long time.
    No preview · Article · Oct 2015 · Allelopathy Journal
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    ABSTRACT: The leachates from different phenological stages (vegetative, flowering and fruiting) of Nicotiana plumbaginifolia decreased the growth and biochemical parameters of sunflower (Helianthus annuus cv. PAC-36) seedlings. In Petri plate assays, the leachates inhibited the germination and seedling growth of sunflower. In soil culture, the leachates decreased the pigments contents, proteins and the nitrate reductase activity. The decrease was maximum in seedlings treated with leachate from the flowering stage and was concentration dependent. Leachates also caused the oxidative stress and stimulated the activities of superoxide dismutase (SOD) and catalase (CAT). However, SOD and CAT activities inhibited the seedlings growth, when treated with the highest concentration of leachate from the flowering stage. Impaired metabolic activity due to leachates decreased the root and shoot lengths of sunflower. N. plumbaginifolia at the flowering stage was most phytotoxic to sunflower.
    No preview · Article · Oct 2015 · Allelopathy Journal
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    ABSTRACT: In the present work plant growth regulating activities of coumarin-3-acetic acid derivatives are reported. A series of coumarin-3-acetic acids were prepared by reacting the phenols with diethyl acetylsuccinate followed by acid hydrolysis. The bioactivity of these compounds were tested on seed germination and seedling growth of wheat and sorghum seeds. Several of these compounds inhibited the seed germination and reduced the shoot and root growth of seedlings than untreated control. All compounds inhibited the shoot and root growth of young seedlings at 1 ppm, however, some stimulated the seedlings growth. At higher concentrations (10 ppm or 100 ppm), seed germination was slightly affected but the shoot and root growth inhibition was more affected. Compounds 2,4,6,7 stimulated the shoot growth but did not effect the root growth.
    No preview · Article · Oct 2015 · Allelopathy Journal

  • No preview · Article · Aug 2015 · Allelopathy Journal

  • No preview · Article · Jul 2015 · Allelopathy Journal
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    ABSTRACT: Extraction, thin layer chromatography and gas chromatography-mass spectrophotometry analyses of surface wax n-alkanes of young, mature and senescent leaves of Momordica cochinchinensis Spreng (Cucurbitaceae) revealed the presence of 19, 20 and 18 alkanes between n-C15 and n-C35, representing 85.62, 89.11 and 86.66 % of alkanes, respectively. The cuticular alkanes from young, mature and senescent leaves attracted the female insect, Aulacophora foveicollis Lucas (Coleoptera: Chrysomelidae) between 2-12, 1-12 and 6-12 µg concentrations, respectively; whereas the mixtures of synthetic alkanes mimicking cuticular alkanes of three types of leaves showed attraction between 6-12 µg concentrations in Y-shaped glass tube olfactometer bioassay. Individual synthetic nonadecane, nonacosane, hentriacontane, tritriacontane and pentatriacontane at the minimal amount of 65, 741, 729, 796 and 7144 ng, respectively, elicited attraction of insect. A synthetic blend of 476, 607, 508 and 6689 ng of nonacosane, hentriacontane, tritriacontane and pentatriacontane, respectively, showed highest attraction of insect and could be used as trapping tool for pest management. © 2015, International Allelopathy Foundation. All rights Reserved.
    No preview · Article · Jul 2015 · Allelopathy Journal
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    ABSTRACT: We investigated the morphological and physiological processes of wheat seedlings under the influence of rice residue with and without water stress. Phenolic contents increased in the rice residues amended soil but decreased by activated charcoal (AC). Seedling emergence decreased with increase in dose of rice residue. Wheat seedlings height, dry weight, relative water content and pigment content decreased when grown in residue amended soil with and without water stress. The soil incorporated residues significantly decreased the protein content but water deficit alone and with residue incorporated increased the protein content. Higher level of sugar and proline contents was recorded in the water stressed seedlings in comparison to control and activated charcoal treated seedlings. Electrolyte leakage and malondialdehyde contents increased in the stressed seedlings as compared with that recorded in control and activated charcoal treatments. A concentration dependant increase in activities of antioxidant enzymes viz. superoxide dismutase, catalase, ascorbate and guaiacol peroxidases was observed in the seedlings grown in soil amended with rice residue while combined stresses resulted in gradual decrease. This study helped in obtaining an insight into crop interaction with combined biotic and abiotic stresses and thus may provide a futuristic goal to maintain sustainable agriculture. © 2015, International Allelopathy Foundation. All rights Reserved.
    No preview · Article · Jul 2015 · Allelopathy Journal