Comparative account of allelopathic potential of essential oil of Tagetes minuta L. and its major component cis-β-Ocimene

Arora, Kishor; Batish, Daizy R.; Singh, Harminder Pal; Kohli, R. K.

doi:10.21746/aps.2016.09.004

Cited by 7 publications

(7 citation statements)

References 3 publications

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“…3). The growth retardatory effects of Melaleuca oil on the test plants is in agreement with earlier studies reporting inhibitory effect of volatile oils from aromatic plants on the seedling growth of weeds (Singh et al, 2009;Rolli et al, 2014, Arora et al, 2016Ricci et al, 2017). The reduction in early growth of weeds could be due to the inhibitory effect of plant volatiles on the cell division and lowered root mitotic activity, DNA synthesis of growing root tips and disruption of the membranes (Nishida et al, 2005;Ahuja et al, 2015).…”

Section: Resultssupporting

confidence: 90%

Phytotoxic potential of essential oil of Melaleuca leucadendra against some agricultural weeds

Goyal

2017

Ann.Pl.Sci.

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The work was undertaken to investigate the phytotoxic potential of essential oil from Melaleuca leucadendra against three weed species, viz., Echinochloa crus-galli, Cyperus rotundus and Leptochloa chinensis. It was observed that volatile oil (0.25-1.5 mg ml-1) of Melaleuca retarded the germination and growth of all the test weeds in a dose-response bioassay conducted under laboratory conditions. Generally, both root and shoot length showed an inhibitory effect in a concentration dependent manner and the maximum effect was observed in C. rotundus, followed by E. crus-galli and L. chinensis. The Melaleuca oil not only affected the germination and seedling growth of the test weeds, but also inhibited the chlorophyll content and dry weight. At the highest dose of Melaleuca oil treatment (1.5 mg ml-1), the chlorophyll content declined by nearly 50% in E. crus-galli and 90% in L. chinensis over the control. Thus, it is concluded that volatile oil possesses phytotoxic potential towards other plants and could be further explored for weed management.

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Section: Resultssupporting

confidence: 90%

Phytotoxic potential of essential oil of Melaleuca leucadendra against some agricultural weeds

Goyal

2017

Ann.Pl.Sci.

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“…El extracto acuoso se obtuvo a partir de 5 g de polvo de las muestras trituradas (hoja, tallo y raíz) de C. clandestinus, los cuales se agregaron en 100 mL de agua destilada (Arora, 2015), relación masa/volumen (g/mL). La mezcla se homogeneizó en un agitador mecánico a 100 rpm, durante 20 min y luego se dejó reposar durante 24 h a temperatura ambiente (23 ± 2 °C) y oscuridad.…”

Section: Preparación Del Extractounclassified

Alelopatía de Cenchrus clandestinus en la germinación de frijol (Phaseolus vulgaris L.)

Velasco-Villabona,

Quevedo-García,

Chaparro-García

2024

Agron. Mesoam.

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Introducción. Las arvenses son uno de los principales problemas en la productividad agrícola, debido a diversas interacciones con el cultivo, como efectos alelopáticos sobre la germinación. Objetivo. Evaluar la alelopatía del pasto kikuyo (Cenchrus clandestinus) en la germinación de frijol (Phaseolus vulgaris L.) variedad ICA Cerinza. Materiales y métodos. El estudio se realizó en el laboratorio de Control de Calidad de la Universidad de Pamplona, Campus Central, Pamplona, Norte de Santander, Colombia, en mayo-agosto 2022. A cada unidad experimental (caja de Petri) con doce semillas de frijol se le agregó 6 mL de extracto acuoso de kikuyo (hoja, tallo y raíz) en tres concentraciones (1, 2,5 y 5 %), más un testigo (0 %), para un total de doce tratamientos. En el lapso de 0 a 12 días, se registró el número de semillas germinadas (NSG), se calculó el índice de tasa de germinación (ITG) y el índice de germinación (IG), y se determinó el perfil biomolecular del extracto acuoso mediante la técnica de espectroscopia transformada de Fourier. Se utilizó un diseño experimental completamente al azar con arreglo factorial (3x4), con medidas repetidas en cada unidad experimental. Los factores intersujetos fueron el tipo de órgano y concentración, y el factor intrasujeto fue el tiempo (12 días) de evaluación. Resultados. Se observaron diferencias significativas (p<0,001) para NSG entre tratamientos por efecto de la concentración del extracto acuoso al igual que para IG, mientras que ITG dependió del órgano (p<0,05) y concentración (p<0,001), fueron afectados de forma negativa conforme aumentó la concentración. En el espectro infrarrojo del extracto se determinó polifenoles, nitrilos y siloxanos. Conclusión. C. clandestinus afectó las semillas germinadas (NSG), el índice de tasa de germinación (ITG) y el índice de germinación (IG), de P. vulgaris, con efecto alelopático del extracto acuoso de hoja en mayor concentración. En los extractos acuosos se determinaron polifenoles, nitrilos y siloxanos, asociados a efecto alelopático.

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“…[125]. Both oil and cis-β-ocimene were strongly allelopathic against Cassia occidentalis L., a common wasteland weed but the effect of cis-β-ocimene was greater in comparison to oil [126] and maximum effect was seen on Amaranthus tricolor with complete inhibition at 1 μl/ml, whereas, Echinochloa crus-galli was least affected (amongst the tested plants) with complete inhibition at 5 μl/ml concentration [127].…”

Section: Marigold and Phytoremediationmentioning

confidence: 99%

Marigold: From Mandap to Medicine and from Ornamentation to Remediation

Mir¹,

Ahanger²,

Agarwal³

2019

AJPS

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Importance of medicinal plants to health care has been great and herbal preparations are being produced at industrial scale particularly in developing countries. The plant products obtained have a long history of use in therapeutics, aromatherapy and food depending on the chemical constituents and their bioactivity. In the recent past, marigolds have received a great attention in scientific research, because of their multiple use and also the information available about their phytochemistry and bioactivity. Tagetes species commonly known as marigold is native to Mexico, being used for medicinal and ornamental purposes. The plant is useful due to its unique phytoconstituents for a range of diseases and disorders and is reportedly effective against piles, kidney troubles, muscular pain, ulcers and wound healing and the flowers are helpful in fever, stomach and liver complaints and also in eye diseases. In India, marigold is also extensively used on religious and social occasions such as in the beautification of mandaps and pooja places; offerings at temples; marriage decorations and landscape planning due to variable size and colour of its flower. Present review is an effort to bring together the different strategies developed for the growth and cultivation of marigold, its ecophysiological and remediation relevance under a variety of environmental conditions and possible allelopathic potential. It includes reports on pharmacological aspects like antibacterial, antifungal, larvicidal, hepatoprotective, insecticidal, mosquitocidal, nematicidal, wound healing, antioxidant, anticancer and antidiabetic properties/activity of Tagetes.

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Comparative account of allelopathic potential of essential oil of Tagetes minuta L. and its major component cis-β-Ocimene

Cited by 7 publications

References 3 publications

Phytotoxic potential of essential oil of Melaleuca leucadendra against some agricultural weeds

Phytotoxic potential of essential oil of Melaleuca leucadendra against some agricultural weeds

Alelopatía de Cenchrus clandestinus en la germinación de frijol (Phaseolus vulgaris L.)

Marigold: From Mandap to Medicine and from Ornamentation to Remediation

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