Seema Chauhan’s scientific contributions

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Publications (3)


Allelopathic Influence of Some Common Weeds on Wheat (Triticum aestivum L.)
  • Article

September 2014

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44 Reads

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2 Citations

Proceedings of the National Academy of Sciences, India - Section B: Biological Sciences

Seema Chauhan

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The effects of root and leaf leachate of four troublesome weeds (Amaranthus retroflexus, Asphodelus tenuifolius, Digera muricata and Trianthema portulacastrum), on seed germination and seedling growth in Triticum aestivum L. were studied. Root and leaf leachate of all the weeds inhibited seed germination and root and shoot growth of T. aestivum. The leaf leachate of all the weeds were more inhibitor than their root leachate. The root and leaf leachate of A. tenuifolius caused maximum inhibition of seed germination and seedling growth. The quantity of total phenolics was higher in the leaves of all the weeds as compared to their roots. These results were further confirmed by HPLC analysis of phenolic compounds showing the presence of eight phenolics (shikimic, gallic, syringic, tannic, synaptic, ferulic, p-coumaric and t-chlrogenic acid) in roots and leaves of the four weeds. Their quantity was higher in the leaves as compared to the roots. Shikimic and gallic acids were present in both root and leaves of all the weeds. Maximum reduction in seed germination and seedling growth in wheat was caused by the root and leaf leachate of A. tenuifolius due to the presence of higher number of phenolic compounds including quercetin and kaemferol.


Medicinal importance of orchids-A review

March 2014

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1,116 Reads

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4 Citations

Medicinal Plants - International Journal of Phytomedicines and Related Industries

The family Orchidaceae is one of the largest families of Angiosperms. It is cosmopolitan in distribution. Apart from being highly ornamental for it’s colourful and fragrant flowers and varied economic importance, the members of the family commonly called as orchids are of great medicinal importance. They have been used as a source of herbal remedies in China since 2800 BC. With increasing uses of herbal drugs, the demand for medicinal plants has increased many folds. Large number of orchids from north-eastern states of India is pirated to other parts not only for ornamental but for medicinal uses. This has caused great threat for extinction of orchids. Both in-situ and ex-situ conservation of orchids needs urgent attention. In the present review, medicinal properties of 24 genera and 56 species have been described.


Antimicrobial activity of some plants of Bignoniaceae family

September 2012

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177 Reads

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1 Citation

Medicinal Plants - International Journal of Phytomedicines and Related Industries

The leaf and stem bark extracts from some species of Bignoniaceae (Adenochalyma alliaceum, Crescentia cujute, Millingtonia hortensis, Pyrostegia venusta and Tabebuia argentia), were found to show antibacterial activities towards the Gram-positive bacteria (Bacillus subtilis and Staphyloccus aureus), Gram negative (Escherichia coli) and yeast (Candida albicans). The extract of Tabebuia argentia was found to be the most active against the Grampositive bacteria.

Citations (1)


... Orchids, members of the Orchidaceae family, are among the most coveted categories in floriculture, comprising approximately 8,000 genera and 35,000 species, both naturally occurring and hybridized (1). India alone has approximately 1,350 species within 185 orchid genera (2). Of these, 55 species have medicinal significance, over 150 are ornamental, and the remaining species hold ecological importance as biological curiosities (2,3). ...

Reference:

Integrated pest management strategies for the invasive orchid blossom midge (Contarinia maculipennis Felt.)
Medicinal importance of orchids-A review
  • Citing Article
  • March 2014

Medicinal Plants - International Journal of Phytomedicines and Related Industries