Journal ArticleDOI
Piscicidal plants of Nepal: Ripe fruit of Catunaregam spinosa (Thunb.) (Rubiaceae) and leaves of Polygonum hydropiper L. (Polygonaceae) as fish poisons
TLDR
Fresh leaf, stem and root extracts of Polygonum hydropiper L. (Polygonaceae) were tested separately for toxicity to fingerlings of grass carp and only the leaf was found to be toxic, but shoots including both stems and leaves were more convenient to use because of the small size of the leaves.About:
This article is published in Aquaculture.The article was published on 1989-06-01. It has received 14 citations till now. The article focuses on the topics: Catunaregam spinosa & Polygonum.read more
Citations
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Piscicidal activity of alcoholic extract of Nerium indicum leaf and their biochemical stress response on fish metabolism
Sunhanshu Tiwari,Ajay Singh +1 more
TL;DR: It was believed that alcoholic extract of Nerium indicum leaf can be used in aquatic environment for controlling predatory fish Channa punctatus population and their piscicidal activity may be due to their adverse effect on respiratory as well as energy production of fish.
Journal ArticleDOI
Piscicidal plants of Nepal: Toxicity to air-breathing predatory fish (Ophiocephalus punctatus, Clarias batrachus and Heteropneustes fossilis) and the duration of risk to cultivated fish
TL;DR: In this article, 36 Nepalese plant species were tested for toxicity to three species of predatory air-breathing fish (Ophiocephalus punctatus, Clarias batrachus and Heteropneustes fossilis ).
Changes in some biochemical parameters in the liver and muscle of Colisa fasciatus due to toxicity of ethanolic extract of Nerium indicum Mill. (Lal Kaner) latex
Sudhanshu Tiwari,Ajay Singh +1 more
TL;DR: Withdrawal experiments shows, N. indicum latex extract mainly suppress energy production and shifts fish respiration towards the anaerobic segment and their biochemical effects are reversible in action.
Journal ArticleDOI
Keeping Leeches at Bay : Field Evaluation of Plant-Derived Extracts against Terrestrial Blood-Sucking Leeches (Haemadipsidae) in Lao PDR
TL;DR: An aqueous extract of S. rarak applied on cloth at a concentration of 1.9 mg/cm(2) is an effective and practical prevention method significantly reducing the number of blood-feeding leeches recorded on stockings worn by humans.
Journal ArticleDOI
Anatomia foliar de Polygonaceae (Angiospermae) da planicie de inundacao do alto Rio Paraná
TL;DR: The leaf blade structure in transversal section, veins, stoma and epidermal trichome were compared and the genera Polygonum, Ruprechtia and Triplaris are easily distinguishable through their anatomical features: stomatal types, glandular trichomes, surface and edge non-glandulartrichome, fimbria vein andEpidermal idioblasts.
References
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Book
A dictionary of the economic products of India
TL;DR: Watt's botanical dictionary of India was published in six volumes between 1889 and 1893, with an index volume completed in 1896, and the whole work is now reissued in nine separate parts as discussed by the authors.
Journal ArticleDOI
The effects of temperature upon the toxicity of chemicals to aquatic organisms
TL;DR: In this article, the effects of temperature changes on chemical toxicity to aquatic organisms are investigated. But the most useful information on this relationship has been acquired in laboratory situations and even this body of literature is not adequate to make any scientifically justifiable generalizations.
Journal ArticleDOI
The Structure of Polygodial: A New Sesquiterpene Dialdehyde from Polygonum hydropiper L
CS Barnes,JW Loder +1 more
TL;DR: A pungent substance, polygodial, isolated from Polygonum hydropiper L. is shown to be drim-7en-11,12-dial (I), a new dialdehyde structurally related to sesquiterpene lactones from Drimys species.
Journal ArticleDOI
A potent cytotoxic warburganal and related drimane-type sesquiterpenoids from Polygonum hydropiper
Yoshiyasu Fukuyama,Tsuneo Sato,Yoshinori Asakawa,Yoshinori Asakawa,Tsunematsu Takemoto,Tsunematsu Takemoto +5 more
TL;DR: Warburganal, a drimane-type sesquiterpene dialdehyde which has potent cytotoxic, antifeedant, antibiotic and molluscicidal activities was isolated from.
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Piscicidal plants of Nepal: preliminary toxicity screening using grass carp (Ctenopharyngodon idella) fingerlings.
TL;DR: A survey of traditional fishermen in Chitwan District of Nepal identified the native names of 97 species of plants believed to possess piscicidal properties, and eighty-two of these were tested for toxicity using grass carp fingerlings as test organisms.