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habitat diversity of Jasminum parkeri Dunn explanations: A – Jasminum parkeri emerging from rock crevices, b – dome-shaped habit of Jasminum parkeri growing along the roadside, C – plant growing on the open, dry, flat ground among rocky stones, D – Jasminum parkeri sheathing the boulder on a slope, e – plant sagging in sediment rocks, F – plant growing on roadside cutting shows a woody stem and strong root system
Source publication
The present article deals with the rediscovery of Jasminum parkeri Dunn (oleaceae) collected from its type locality after a lapse of about 100 years. J. parkeri is a highly endangered and narrowly endemic taxon restricted to a small pocket in the remote mountain area of Chamba district, himachal Pradesh in the western himalaya, India. in order to f...
Citations
... Jasminum parkeri Dunn, commonly known as dwarf jasmine, Himalayan jasmine, or Parkers jasmine, is one such endangered taxon, and is narrowly endemic and particularly found in the sub-temperate zone of the Western Himalaya [5]. It has bright yellow, pleasantly scented, and eye-catching flowers, and appears as a natural bonsai-like shrub. ...
... It is found naturally in crevices of rocks along the slopes of grazing land and roadside edges at an altitude of 1600-2300 m a.s.l. The species was rediscovered by Lal et al. [5] from its type location after a lapse of 10 decades. Due to its narrow distribution, appropriate conservation measures are required, not only to guard this species from population decline, but also to benefit tribal people through its cultivation. ...
... The peak flowering was recorded early (for 6 weeks) for plants raised through stem cuttings. Consistent with our study, Lal et al. [5] reported that May-December is the flowering and fruiting period of J. parkeri plants growing in their natural habitat. ...
Jasminum parkeri Dunn is a narrowly endemic, critically endangered woody ornamental shrub confined to sub-temperate zone of Western Himalayas, and rediscovered from its type locality after a lapse of about 100 years. In the present study, a propagation technique of J. parkeri, using stem cuttings, was established for the first time through application of auxins, namely, indole-3-acetic acid (IAA), 1-naphthaleneacetic acid (NAA), and indole-3-butyric acid (IBA), at varying concentrations ranging from 1000 to 4000 ppm. The highest rooting percentage (98.33% (85.68% ± 4.32)), number of primary roots (36), root length (29.68 cm) and survival percentage (96.67% (83.85% ± 6.16)) were recorded for cuttings treated with 3000 ppm NAA. The phenological comparison between pot plants propagated through seeds and stem cuttings in a naturally ventilated polyhouse revealed a reduction in vegetative and flowering phases in cutting raised plants. Additionally, a noteworthy adaptive behavior of two weeks of early flowering and four weeks of extended flowering (February to October) was observed in plants raised under polyhouse conditions. This method will help in protecting the species from population decline, thereby significantly increasing its potential to be harnessed as an ornamental plant in India. Furthermore, plants grown ex situ will be reintroduced in natural populations.
... The species is endemic to Himachal Pradesh and is reported only from few localities of district Chamba from an altitude range of 1600-2300 m (Lal, 2014). ...
The paper deals with the conservation strategies applied for the ex-situ conservation of the some threatened plants of Indian Western Himalaya in the botanical garden of Botanical Survey of India, Dehradun. The specific habitat requirements, propagation methods along with study on growth and survival percentage in ex-situ condition of the selected species are also discussed.
