Informations et ressources scientifiques
sur le développement des zones arides et semi-arides

Titre : Eco physiological studies of some desert medicinal plants

Auteur : Daiya, Kavita

Université de soutenance : Jai Narain Vyas University

Grade : Doctor of Philosophy (PhD) 2020

Descriptif
The present study was started with survey and collection of germplasm of two important medicinal plants, viz. Corbichonia decumbens (Forssk.) Exell [Pather-chati ; Lophiocarpaceae] and Withania coagulans (Stocks) Dunal [Paneer-bandth ; Solanaceae]. The plant materials of C. decumbens was collected from Beriganga, Jodhpur during different developmental (vegetative, flowering and fruiting) stages. However, W. coagulans plants were cultivated in Botanic Garden of the J.N.V. University Campus. The fruits were procured from Ayurvedic medicinal shop and seeds were collected from fruits for further studies. The morphological characteristics of seeds such as size, colour, weight, viability, etc. were investigated. Under laboratory conditions, seeds of both plants showed decline in viability percentage. However, seeds of C. decumbens became inviable after six months of storage. W. coagulans seeds were pre-treated with different nitrates solutions [Ca(NO3)2, Co(NO3)2 and KNO3] and plant growth regulators (GA3, IAA and IBA) under in-vitro and in-vivo conditions for germination studies. C. decumbens seeds did not germinate under in-vitro and in-vivo conditions after providing different pre-treatments due to loss of viability very quickly. Phytochemical analyses were performed during different growth stages/seasons of these plants to understand in which growth stage/ season the plant should be harvested for obtaining the maximum amount of primary and secondary metabolites. Soil analyses were also worked out to observe the effect of different soil parameters on growth performance of these plants. Thus, the present work have been undertaken to develop a comprehensive account for better growth and optimum procurement of the metabolites as well as the germplasm conservation of these two exploited medicinal plants of the arid region.

Présentation et version intégrale (Shodhganga)