Valeriana jatamansii
Family : Valerianaceae
Vernacular names : Na poe (Am, Km);
Sugandhwal, Samayo
(Dn, Np).
Common name : Indian valerian.
Habitat & distribution : Open slopes, moist
places in forest; 1500-3600 m, WCE Nepal.
Distributed in Afghanistan, Himalaya (Kashmir to
Bhutan), NE India, Myanmar, China. Locally found in
Juphal, Pahada, Tripurakot, Majphal areas.
Diagnostic characters : Perennial herb, with
tufted stem and long fibrous roots descending from
fragrant rhizome. Basal leaves ovate-heart-shaped,
long stalked, toothed or wavy; stem leaves few, small,
entire or lobed. Flowers small white, or pink-tinged, in
terminal cluster.
Occurrence : Common.
Flowering & fruiting : Feb.-Jul. (fl), Jun.-Aug. (fr).
Parts used : Rhizomes & roots.
Taste/Potency : Sweet (ngar) & bitter
(kha)/ Cool (sil).
Use : Headache, eye trouble,
sore throat, indigestion and wounds. Also used as
incense with other herbs.
Toxicity : Non-toxic.
Mode of use : Used with other herbs.
Chief constituents : Rhizome yields essential
oil, containing valeranone, isovaleric acid, etc.
Harvesting : Rhizomes are collected
during Sep.-Nov.
National status : HMG Nepal protection 2
(banned for export in unprocessed form).
Local status : Highly vulnerable. Threat
is due to harvesting of rhizome for trade.
Major documentation : Chophel (1993), CSIR
(1986), HMG (1970, 2001), IUCN (2000), Joshi and
Joshi (2001), Pohle (1990), Rajbhandari (2001),
Warrier et al. (1996).
Valeriana jatamansii Jones 51
TRIBHUVAN UNIVERSITY 2080 Bachelor Level (4 Yrs.)/Science & Tech./ III Year Research Methodology [R.M.305] (Compulsory) Time: 3 hrs. Full Marks: 100 New Course Candidates are required to give their answers in their own words as far as practicable. The questions are of equal value. 10x10=100 Attempt any TEN questions. Define research. Explain the chief characteristics of scientific research. Define research problem. Explain the ways of selecting a meaningful research problem. Also, describe the methods of problem identification. What are the methods of data collection for the purpose of research? Discuss the ways of data collection activity by schedule. Also, describe different types of schedules. What is sampling? Discuss the needs of sampling for research work. A statistics practitioner would like to estimate a population mean within 15 units. The confidence level has been set at 99% and population standard deviation = 174. Determine the sample size. What are the methods of redu...
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