Ames, B., Profet, M., Gold, L., 1990. Dietary pesticides (99.99% all natural). Proceedings of
the National Academy of Sciences 87 (19), 7777-7781.
Anaya, A.L., Waller, G.R., Owuor, P.O., Friedman, J., Chou, C.H., Suzuki, T., Cruz-Ortega,
R., 2002. The role of caffeine in the production decline due to autotoxicity in coffee
and tea plantations. Allelopathy: from molecules to ecosystems. Enfield: Science
Publishers Inc, 71-91.
Appiah, K.S., Li, Z., Zeng, R.S., Luo, S., Oikawa, Y., Fujii, Y., 2015. Determination of allelopathic
potentials in plant species in Sino-Japanese floristic region by sandwich method and dish
pack method. International Journal of Basic and Applied Sciences, 4 (4), 381.
Ashihara, H., Kubota, H., 1986. Patterns of adenine metabolism and caffeine biosynthesis in
different parts of tea seedlings. Physiologia Plantarum, 68(2), 275-281.
Atomssa, T., Gholap, A.V., 2011. Characterization of caffeine and determination of caffeine
in tea leaves using uv-visible spectrometer. African Journal of Pure and Applied
Chemistry, 5(1), 1-8.
Ayoola, S.O., 2008. Toxicity of glyphosate herbicide on Nile tilapia (Oreochromis niloticus)
juvenile. African Journal of Agricultural Research, 3 (12), 825-834.
Bais, H.P., Vepachedu, R., Gilroy, S., Callaway, R.M., Vivanco, J. M., 2003. Allelopathy and
exotic plant invasion: from molecules and genes to species interactions. Science, 301,
1377-1380.
Batish, D.R., Kaur, S., Singh, H.P., Kohli, R.K., 2009. Nature of interference potential of leaf
debris of Ageratum conyzoides. Plant growth regulation, 57(2), 137.
Batish, D.R., Singh, H.P., Kaur, M., Kohli, R.K., Yadav, S.S., 2008. Caffeine affects
adventitious rooting and causes biochemical changes in the hypocotyl cuttings of mung
bean (Phaseolus aureus Roxb). Acta Physiol Plant. 30, 401–405.
Baziramakenga, R., Leroux, G.D., Simard, R.R. and Nadeau, P., 1997. Allelopathic Effects
of Phenolic Acids on Nucleic Acid and Protein Levels in Soybean Seedlings. Canadian
Journal of Botany, 75, 445-450.
Bogatek R., Gniazdowska A., Zakrzewska W., Oracz K. and Gawronski S.W., 2006.
Allelopathic effects of sunflower extracts on mustard seed germination and seedling
growth. Biologia Plantarum. 50(1), 156-158.
Bukowska, B., 2006. Toxicity of 2, 4-Dichlorophenoxyacetic Acid--Molecular
Mechanisms. Polish Journal of Environmental Studies, 15(3), 365–374.
Chatterjee, P., Chandra, S., Dey, P., Bhattacharya, S., 2013. Comparative Study of
Allelopathic Effects of Green Tea and Black Tea. Current Trends in Biotechnology
and Pharmacy, 7(2), 644-649.
Cheema, Z.A., SadiqS H.M.I., Khaliq, A., 2000. Efficacy of sorgaab (sorghum water extract)
as a natural weed inhibitor in wheat.
Cheema, Z.A., Khaliq, A., Mubeen, M., 2003. Response of wheat and winter weeds to foliar
application of different plant water extracts of sorghum (S. bicolor). Pakistan Journal
of Weed Science Research 9, 89-97.
Cheema, Z.A., Khaliq, A., Saeed, S., 2004. Weed control in maize (Zea mays L.) through
sorghum allelopathy. Journal of Sustainable Agriculture, 23(4), 73-86.
Chou, C.H., Waller, G.R., 1980. Possible allelopathic constituents of Coffea arabica. Journal
of chemical ecology, 6(3), 643-654.
Clifford, M.N., 2000. Chlorogenic acids and other cinnamates–nature, occurrence, dietary
burden, absorption and metabolism. Journal of the Science of Food and
Agriculture, 80(7), 1033-1043.
Cruz, O.R., Anaya, A.L. and Hernandez-Bautista, B.E., 1998. Effects of Allelochemical
Stress Produced by Sicyos deppei on Seedling Root Ultrastructure of Phaseolous
valgaris and Cucubita ficifolia. Journal of Chemical Ecology, 24, 2039-2057.
Dayan, F.E., Owens, D.K., Watson, S.B., Asolkar, R.N., Boddy, L.G., 2015. Sarmentine, a
natural herbicide from Piper species with multiple herbicide mechanisms of
action. Frontiers in plant science, 6, 222.
Dibah, H., Majd, A., Nejadsattari, T., Ghanati, F., 2012. Allelopathic potential of (Camellia
sinensis (L.) kuntze) on seed germination and seedling growth of Vicia sp. Advances
in Environmental Biology, 6(11), 2846-2853.
Duke, S.O., Romagni, J.G., Dayan, F.E., 2000. Natural products as sources for new
mechanisms of herbicidal action. Crop Protection, 19, 583-589.
Einhellig, F.A., Leather, G.R., 1988. Potentials for exploiting allelopathy to enhance crop
production. Journal of Chemical Ecology, 14(10), 1829-1844.
Farkas, O., Jakus, J., Héberger K., 2004. Quantitative structure-antioxidant activity
relationships of flavonoid compounds. Molecules, 9(12), 1079-1088.
Farooq, M., Jabran, K., Cheema, Z.A., Wahid, A., Siddique, K.H., 2011. The role of
allelopathy in agricultural pest management. Pest management science, 67(5), 493-
506.
Fernandez, P.L., Martin, M.J., Gonzalez, A.G., Pablos, F., 2000. HPLC determination of
catechins and caffeine in tea. Differentiation of green, black and instant teas. Analyst,
125(3), 421-425.
Friedman, J., Waller, G.R., 1983. Caffeine hazards and their prevention in germinating seeds
of coffee (Coffea arabica L.). Journal of chemical ecology, 9(8), 1099-1106.
Fujii, Y., Furubayashi, A., Hiradate, S., 2005. Rhizosphere Soil Method. A New Bioassay to
Evaluate Allelopathy in the Field, 490–492.
Fujii, Y., Hiradate, S., 2005. A critical survey of allelochemicals in action: the importance of
total activity and the weed suppression equation. In Proceedings of the 4th World
Congress on Allelopathy 73-76.
Fujii, Y., Parvez, S.S., Parvez, M.M., Ohmae, Y., Iida, O., 2003. Screening of 239 medicinal
plant species for allelopathic activity using the sandwich method. Weed Biology and
Management 3(4), 233- 241.
Fujii, Y., Shibuya, T., Nakatani, K., Itani, T., Hiradate, S., Parvez, M.M., 2004. Assessment
method for allelopathic effect from leaf litter leachates. Weed Biology and
Management, 4(1), 19-23.
Fujii, Y., Shibuya, T., Yasuda, T., 1991. L-3, 4-dihydroxyphenylalanine as an allelochemical
candidate from Mucuna pruriens (L.) DC. var. utilis. Agricultural and biological
chemistry, 55(2), 617-618.
Fujii, Y., Shibuya, T., Yasuda, T., 1991. L-3,4-dihydroxyphenylalanine as an allelochemical
candidate from Mucuna pruriens (L.) DC. var. utilis. Agriculture, Biology, Chemistry
55, 617-618.
Furubayashi, A., Hiradate, S., Fujii, Y., 2005. Adsorption and transformation reactions of LDOPA in soils. Soil Science & Plant Nutrition, 51(6), 819-825.
Gatti, A.B., Ferreira, A.G., Arduin, M., Perez, S.C.G.D.A., 2010. Allelopathic effects of
aqueous extracts of Artistolochia esperanzae O. Kuntze on development of Sesamum
indicum L. seedlings. Acta Botanica Brasilica, 24(2), 454-461.
Gianessi, L.P., Reigner, N.P., 2007. The value of herbicides in US crop production. Weed
Technology, 21(2), 559-566.
Golisz, A., Lata, B., Gawronski, S.W., Fujii, Y., 2007. Specific and total activities of the
allelochemicals identified in buckwheat. Weed Biology and Management 7, 164-171.
Gramza, A., Korczak, J., 2005. Tea constituents Camellia sinensis (L.) as antioxidants in lipid
systems. Trends in Food Science & Technology, 16(8), 351-358.
Guo, Q., Zhao, B., Shen, S., Hou, J., Hu, J., Xin, W., 1999. ESR study on the structure–
antioxidant activity relationship of tea catechins and their epimers. Biochimica et
Biophysica Acta (BBA)-General Subjects, 1427(1), 13-23.
Hachinohe, M., Matsumoto, H., 2007. Mechanism of selective phytotoxicity of L-3, 4-
dihydroxyphenylalanine (L-Dopa) in barnyard glass and lettuce. Journal of Chemical
Ecology, 33(10), 1919-1926.
Hadacek H., 2002. Secondary metabolites as plant traits: current assessment and future
perspectives. Critical Reviews in Plant Sciences 21, 273-322.
Hashimoto, F., Nonaka, G.I., Nishioka, I., 1987. Tannins and related compounds. LVI.
Isolation of four new acylated flavan-3-ols from oolong tea. Chemical and
pharmaceutical bulletin, 35(2), 611-616.
Hassan, M.M., Daffalla, H.M., Yagoub, S.O., Osman, M.G., Gani, M.E.A., Babiker, A. G.E.,
2012. Allelopathic effects of some botanical extracts on germination and seedling
growth of Sorghum Bicolor L. Journal of Agricultural Technology, 8(4), 1423-1469.
Hilal, Y., Engelhardt, U., 2007. Characterisation of white tea–Comparison to green and black
tea. Journal für Verbraucherschutz und Lebensmittelsicherheit, 2(4), 414-421.
Hiradate, S., 2006. Isolation strategies for finding bioactive compounds: specific activity vs.
total activity. In Natural Products for Pest Management. Rimando AM, Duke SO (Eds),
American Chemical Society, Washington, 113–126.
Hiradate, S., Furubayashi, A., Fujii, Y., 2005. Changes in Chemical Structure and Biological
Activity of L-DOPA as Influenced by an Andosol and Its Components. Soil Science &
Plant Nutrition, 51(4), 477-484.
Hiradate, S., Morita, S., Sugie, H., Fujii, Y., Harada, J., 2004. Phytotoxic cis-cinnamoyl
glucosides from Spiraea thunbergii. Phytochemistry, 65(6), 731-739.
Ho, C.T., Lin, J.K., Shahidi, F., 2008. Tea and tea products: chemistry and health-promoting
properties. CRC press.
Hollingsworth, R.G., Armstrong, J.W., Campbell, E., 2002. Caffeine as a repellent for slugs
and snails: A high concentration this stimulant becomes a lethal neurotoxin to garden
pests. Nature 417: 915-916.
IAS (International Allelopathy Society), 1996. Constitutions. Draw up durating First World
Congress on Allelopathy: A Science for the Future. Cadiz, Spain.
Inderjit, Dakshini, K.M.M., 1994. Allelopathic effect of Pluchea lanceolate (Asteraceae) on
characteristics of four soils and tomato and mustard growth. American Journal of
Botany. 81(7), 799–804.
Iqbal, J., Cheema Z. A., An M., 2007. Intercropping of field crops in cotton for the
management of purple nutsedge (Cyperus rotundus L.). Plant Soil 300, 163–171.
Ito, I., Kobayashi, K., Yoneyama, T., 1998. Fate of Dehydromatricaria Ester Added to Soil
and its Implications for the Allelopathic Effect of Solidago altissima L. Annals of
Botany, 82(5), 625-630.
Jamil, M., Cheema, Z.A., Mushtaq, M.N., Farooq, M., Cheema, M. A., 2009. Alternative
control of wild oat and canary grass in wheat fields by allelopathic plant water
extracts. Agronomy for sustainable development, 29(3), 475-482.
Jose, S., Gillespie, A.R., 1998. Allelopathy in black walnut (Juglans nigra L.) alley cropping.
I. Spatio-temporal variation in soil juglone in a black walnut–corn (Zea mays L.) alley
cropping system in the midwestern USA. Plant and Soil, 203(2), 191-197.
Kamo, T., Hiradate, S., Fujii, Y., 2003. First isolation of natural cyanamide as a possible
allelochemical from hairy vetch Vicia villosa. Journal of chemical ecology, 29(2), 275-283.
Kato-Noguchi H., 2001. Effects of lemon balm (Melissa officinalis L.) extract on germination
and seedling growth of six plants. Acta Physiol. Plant. 23 (1), 49-53.
Khaliq, A., Matloob, A., Irshad, M.S., Tanveer, A., Zamir, M.S.I., 2010. Organic weed
management in maize (Zea mays L.) through integration of allelopathic crop
residues. Pakistan Journal of Weed Science Research, 16(4).
Khoa T. G., Hai T. N., Manh X. N., Thuy T. B. N., Nghia D. P., Oanh T. O., Huong T. P.,
Duez. P.2013. Effects of Raw Material types on the Chemical Composition of Trung
Du Tea Variety (Camellia sinensis var. sinensis). J. Sci. &Devel. 11 (3), 373-379.
Khursheed, T., Ansari, M.Y.K., Shahab, D., 2009. Studies on the effect of caffeine on growth
and yield parameters in Helianthus annuus L. variety Modern. Biology and
Medicine, 1(2), 56-60.
Kim, Y.S., Sano, H., 2008. Pathogen Resistance of Transgenic Tobacco Plants Producing
Caffeine. Phytochemistry, 69(4), 882–888
Kobayashi, K., 2004. Factors affecting phytotoxic activity of allelochemicals in soil. Weed
biology and management, 4(1), 1-7.
Kodama, S., Ito, Y., Nagase, H., Yamashita, T., Kemmei, T., Yamamoto, A., Hayakawa, K.,
2007. Usefulness of catechins and caffeine profiles to determine growing areas of
green tea leaves of a single variety, Yabukita, in Japan. Journal of Health Science,
53(4), 491-495.
Komes, D., Horzic, D., Belscak, A., Kovacevic Ganic, K., Bljak, A., 2009. Determination of
caffeine content in tea and maté tea by using different methods. Czech J. Food Sci, 27,
213-216.
Kruse, M., Strandberg, M., Strandberg, B., 2000. Ecological effects of allelopathic plants: a
review. National Environmental Research Institute (NERI) Technical Report No. 315.
Le Thi, H., Toshiaki, T., Kiyotake, S., Van Chin, D., Kato-Noguchi, H., 2008. Allelopathy
and the Allelothathic Activity of a Phenylpropanol from Cucumber Plants. Plant
growth regulation, 56 (1), 1–5.
Li, Y., Ogita, S., Keya, C. A., Ashihara, H., 2008. Expression of caffeine biosynthesis genes
in tea (Camellia sinensis). Zeitschrift für Naturforschung C, 63(3-4), 267-270.
Lin, J., Zhang, P., Pan, Z., Xu, H., Luo, Y., Wang, X., 2013. Discrimination of oolong tea
(Camellia sinensis) varieties based on feature extraction and selection from aromatic
profiles analysed by HS-SPME/GC– MS. Food Chemistry 141, 259-265
Lin, J.K., Lin, C.L., Liang, Y.C., Lin-Shiau, S.Y., Juan, I.M., 1998. Survey of catechins, gallic
acid, and methylxanthines in green, oolong, pu-erh, and black teas. Journal of
agricultural and food chemistry, 46(9), 3635-3642.
Liu, D.L., Lovett, J.V., 1993. Biologically active secondary metabolites of barley. II.
Phytotoxicity of barley allelochemicals. Journal of Chemical Ecology, 19(10), 2231-
2244.
Macias, F.A. 1995. Allelopathy in the search for natural herbicide models.
Macías, F.A., Varela, R.M., Torres, A., Molinillo, J.M.G., 1996. Field crops as source of
natural herbicide models: sunflowers. Allelopathy in pest’s management for
sustainable agriculture, 2, 77-88.
Mandel, S., Youdim, M.B., 2004. Catechin polyphenols: neurodegeneration and
neuroprotection in neurodegenerative diseases. Free Radical Biology and
Medicine, 37(3), 304-317.
Mardani, H., Kazantseva, E., Onipchenko, V., Fujii, Y., 2016. Evaluation of allelopathic
activity of 178 Caucasian plant species. International Journal of Basic and Applied
Sciences, 5(1), 75-81.
McDowell, I., Bailey, R.G., Howard, G., 1990. Flavonol glycosides in black tea. Journal of
the Science of Food and Agriculture, 53(3), 411-414.
Mitchell, G., Bartlett, D.W., Fraser, T.E.M., Hawkes, T.R., Holt, D.C., Townson, J.K.,
Wichert, R.A., 2001. Mesotrione: a new selective herbicide for use in maize. Pest
Management Science: formerly Pesticide Science, 57(2), 120-128.
Mohammed, M.I., Sulaiman, M.A., 2009. Proximate, caffeine and tannin analyses in some
brands of tea consumed in Kano Metropolis, Nigeria. Bayero Journal of Pure and
Applied Sciences, 2(2), 19-21.
Mohanpuria, P., Kumar, V., Yadav, S.K., 2010. Tea caffeine: metabolism, functions, and
reduction strategies. Food science and biotechnology, 19(2), 275-287.
Molyneux, P., 2004. The use of the stable free radical diphenylpicrylhydrazyl (DPPH) for
estimating antioxidant activity. Songklanakarin J. Sci. Technol, 26(2), 211-219.
Morikawa, C.I.O., Miyaura, R., Tapia Y Figueroa, M.D.L., Rengifo Salgado, E.L., Fujii, Y.,
2012. Screening of 170 Peruvian plant species for allelopathic activity by using the
Sandwich Method. Weed biology and management, 12(1), 1-11.
Mostakim, M., Khan, A.R., 2014. Effect of coffee on the growth and development of the red
flour beetle, Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae. Bangladesh
Journal of Zoology, 42(2), 211-216.
Mukaromah, A.S., Purwestri, Y.A., Fujii, Y., 2016. Determination of allelopathic potential in
mahogany (Swietenia macrophylla King) leaf litter using sandwich method.
Indonesian Journal of Biotechnology, 21(2), 93-101.
Mukhtar, H., Ahmad, N., 2000. Tea polyphenols: prevention of cancer and optimizing
health. The American journal of clinical nutrition, 71(6), 1698S-1702S.
Narwal S.S., Tauro, P., Ed.; Proceedings of the International Conference on Allelopathy,
India, New Delhi, September 6-8. Scientific Publishers: Jodhpur, 77–93.
Nehlig, A., Daval, J.L., Debry, G., 1992. Caffeine and the central nervous system:
mechanisms of action, biochemical, metabolic and psychostimulant effects. Brain
Research Reviews, 17(2), 139-170.
Nishida, N., Tamotsu, S., Nagata, N., Saito, C., Sakai, A., 2005. Allelopathic effects of
volatile monoterpenoids produced by Salvia leucophylla: inhibition of cell
proliferation and DNA synthesis in the root apical meristem of Brassica campestris
seedlings. Journal of Chemical Ecology, 31(5), 1187-1203.
Norouzi .Y., Mohammadi, G.R ., Nosratti. I., 2015. Soil Factors Affecting the Allelopathic
Activities of Some Plant Species. American-Eurasian J. Agric. & Environ. Sci, 15 (11),
2252-2257.
Oleszek, W., Jurzysta, M., 1987. The allelopathic potenial of alfalfa root medicagenic acid
glycosides and their fate in soil environments. Plant Soil, 98, 67–80.
Rebecca, L.J., Seshiah, C., Tissopi, T., 2014. Extraction of caffeine from used tea leaves. Ann
Valahia Univ Targ, 19-22.
Reigosa, M.J., Pedrol, N., González, L., 2006. Allelopathy: A Physiological Process with
Ecological Implications, pp.637.
Reto, M., Figueira, M.E., Filipe, H.M., Almeida, C.M., 2007. Chemical composition of green
tea (Camellia sinensis) infusions commercialized in Portugal. Plant Foods for Human
Nutrition, 62(4), 139.
Rezaeinodehi, A., Khanghol, S., Aminidehaji, M., Kazemi, H., 2006. Allelopathic potential
of tea (Camellia sinensis (L.) Kuntze) on germination and growth of Amaranthus
retroflexus L. and Setaria glauca (L.) P. Beauv. Journal of Plant Diseases and
Protection, 20, 447-454.
Rice, E.L., 1984. “Allelopathy”. 2nd ed. Academic Press, New York.
Rizvi, S.J.H., Mukerji, D., Mathur, S.N., 1981. Selective phyto-toxicity of 1, 3, 7-
trimethylxanthine between Phaseolus mungo and some weeds. Agricultural and
Biological Chemistry, 45(5), 1255-1256.
Rizvi, S.J.H., Rizvi, V., 1992. Exploitation of allelochemicals in improving crop
productivity. Allelopathy. Springer, Dordrecht, 443-472.
Rizvi, S.J.H., Rizvi, V., 2010. Exploitation of Allelochemicals in Improving Crop
Productivity. In: Rizvi, S.J.H., V. Rizvi, Eds. Allelopathy: Basic and Applied Aspects.
New York: Chapman and Hall, 443-473.
Rizvi, S.J.H., Rizvi, V., Mukerjee, D., Mathur, S.N., 1987. 1,3,7-Trimethylxanthine, an
allelochemical from seeds of Coffea arabica Plant and Soil, 98(1), 81-91.
Salam M.A. and Kato-Noguchi H., 2010. Allelopathic potential of methanol extract of
Bangladesh rice seedlings. Asian Journal. Crop Science. 2, 70-77.
Salama F.M., Sayed S.A. and Abd El-Gelil., 2014. Plant Communities and Floristic
Composition of the Vegetation of Wadi Al-Assiuty and Wadi Habib in the Eastern
Desert, Egypt. Notulae Scientia Biologicae, 6(2),196–206
Sasamoto, H., Fujii, Y., Ashihara, H. 2015. Effect of purine alkaloids on the proliferation of
lettuce cells derived from protoplasts. Natural Product Communications, 10(5).
Sasamoto, H., Fujise, K., Kobayashi, Y., Mori, D., Oyanagi, T., Hasegawa, A. 2012.
Development of‘Protoplast method’ for bioassay of allelopathy in plants. Proceedings
of the 76th Annual Meeting of the Botanical Society of Japan, 128.
Sasamoto, H., Murashige-Baba, T., Inoue, A., Sato, T., Hayashi, S., Hasegawa, A., 2013.
Development of a new method for bioassay of allelopathy using protoplasts of a
leguminous plant Mucuna pruriens with a high content of the allelochemical LDOPA. Journal of Plant Studies, 2(2), 71.
Service, R. F., 2013. Agriculture. What happens when weed killers stop killing? Science,
341(6152), 1329.
Sharma, O.M.P., Bhat, T.K., 2009. DPOLYPENOLH antioxidant assay revisited. Food
Chemistry, 113 (4), 1202-1205.
Sheu, S.R., Wang, C.C., Chang, S.Y., Yang, L.C., Jang, M.J., Cheng, P.J., 2009. Influence of
Extraction Manufacturing Process on Caffeine Concentration. In Proceedings of the
International MultiConference of Engineers and Computer Scientists, 2, 18-20.
Shwe, K.K., 2015. Influence of water management practices on paddy rice root exudates and
soil phosphorus solubility under two different soil types.
Siegler, D.S., 2010. Basic Pathways for the Origin of Allelopathic Compounds. In: Putnam,
A.R., C.S. Tang, Eds. The Science of Allelopathy. New York
Singh, H. P., Batish, D. R., Kohli, R. K., 2001. Allelopathy in agroecosystems: an
overview. Journal of Crop Production, 4(2), 1-41.
Singh, H.P., Batish, D.R., Kohli, R.K., 2003. Allelopathic interactions and allelochemicals:
new possibilities for sustainable weed management. Critical Reviews in Plant
Sciences, 22(3-4), 239-311.
Smyth, D.A., 1992. Effect of methylxanthine treatment on rice seedling growth. Journal of
Plant Growth Regulation, 11(2), 125-128.
Soltys, D., Krasuska, U., Bogatek, R., Gniazdowska, A., 2013. Allelochemicals as
bioherbicides—present and perspectives. In Herbicides-Current research and case
studies in use. IntechOpen.
Stach, D., Schmitz, O.J., 2001. Decrease in concentration of free catechins in tea over time
determined by micellar electrokinetic chromatography. Journal of Chromatography
A, 924(1-2), 519-522.
Syed, S., Al–Haq, M.I., Ahmed, Z.I., Razzaq, A., Akmal, M., 2014. Root Exudates and Leaf
Leachates of 19 Medicinal Plants of Pakistan Exhibit Allelopathic Potential. Pakistan
J. Bot, 46 (5), 1693–1701.
Takeda, Y. 1994. Differences in Caffeine and Tannin Contents between Tea Cultivars, and
Application to Tea Breeding. JARQ, 28(2), 117–123.
Takemura, T., Kamo, T., Sakuno, E., Hiradate, S., Fujii, Y., 2013. Discovery of coumarin as
the predominant allelochemical in Gliricidia sepium. Journal of Tropical Forest
Science 25, 268-272.
Tat Loi, D., 2001. Vietnamese medicinal plants and herbs. Medical Publishing House. 187-
188
Uddin, M., Won, O.J., Pyon, J.Y., 2010. Herbicidal effects and crop selectivity of sorgoleone,
a sorghum root exudate under greenhouse and field conditions. Korean Journal of
Weed Science, 30(4), 412-420.
Vietnam exporting and importing report., 2016. Ministry of Industry and Trade
Vuong, Q.V., Nguyen, V., Golding, J.B., Roach, P.D., 2011. The content of bioactive
constituents as a quality index for Vietnamese tea. International Food Research Journal
18, 329-336.
Vyvyan, J.R., 2002. Allelochemicals as leads for new herbicides and agrochemicals.
Tetrahedron 58, 1631–1646.
Wang, D., Lu, J., Miao, A., Xie, Z. and Yang, D., 2008. HPLC-DAD-ESI-MS/MS analysis
of polyphenols and purine alkaloids in leaves of 22 tea cultivars in China. Journal of
Food Composition and Analysis 21, 361-369.
Wang, X., Hu, S., Wan, X., Pan, C., 2005. Effect of microbial fermentation on caffeine
content of tea leaves. Journal of Agricultural and Food Chemistry, 53(18), 7238-7242.
Waris, A., Waris, L., Khan, M.A., Shad, A.A., 2016. Allelopathic Effect of Methanol and
Water Extracts of Camellia sinensis (L). on Seed Germination and Growth of Triticum
aestivum L. and Zea mays L. Journal of Bioresource Management, 3(1), 5.
Weir, T.L., Park, S.W., Vivanco, J.M., 2004. Biochemical and physiological mechanisms
mediated by allelochemicals. Current Opinion in Plant Biology, 7(4), 472-479.
Wink, M., 2013. Evolution of secondary metabolites in legumes (Fabaceae). South African
Journal of Botany, 89, 164-175.
Wink, M., Schmeller, T., Latz-Brüning, B., 1998. Modes of action of allelochemical
alkaloids: interaction with neuroreceptors, DNA, and other molecular targets. Journal
of Chemical Ecology, 24(11), 1881-1937.
Xuan, T.D., Shinkichi, T., Khanh, T.D., Chung, I.M., 2005. Biological control of weeds and
plant pathogens in paddy rice by exploiting plant allelopathy: an overview. Crop
Protection, 24(3), 197-206.
Yamamoto, Y., 2009. Movement of allelopathic compound coumarin from plant residue of sweet
vernalgrass (Anthoxanthum odoratum L.) to soil. Grassland Science, 55(1), 36-40.
Yen, G.C., Chen, H.Y., 1994. Comparison of antimutagenic effect of various tea extracts
(green, oolong, 78ouching, and black tea). Journal of Food Protection, 57(1), 54-58.
Zuo, Y., Chen, H., Deng, Y., 2002. Simultaneous determination of catechins, caffeine and
gallic acids in green, oolong, black and pu-erh teas using HPLC with a photodiode
array detector. Talanta, 57(2), 307-316.