VINEET SONI*#, P.L. SWARNKAR**
*Plant Bioenergetics and Biotechnology Laboratory, Department of Botany, “Mohanlal Sukhadia” University, Udaipur, India
**Department of Botany, University of Rajasthan, Rajasthan, Jaipur, India
Succulent plants are well adapted to survive in harsh conditions of arid and semi-arid environments. Understanding the biophysical basis of plant adaptation under such adverse conditions will be helpful in the development of transgenic plants against various abiotic stresses. Therefore, the present study was carried out to assess the mechanism of maintaining photosynthetic performance in Commiphora wightii (C. wightii) growing under harsh natural conditions of arid environment of Rajasthan, India. The membrane and phenomenological models represent high photosynthetic adaptability in C. wightii plants. In wild and control plants of C. wightii, the quantum yield of primary photochemistry was observed 0.82 and 0.62 respectively. Present results clearly indicate that the C. wightii are well developed physiologically to survive in harsh arid environment by manipulating their photosynthetic performance.
Key words: chlorophyll florescence, JIP test, abiotic stress, Commiphora wightii.
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