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Studies on gamma rays induced cytomorphological variations and procurement of some induced novel mutants in Kalmegh [Andrographis paniculata (Burm F.) Nees.]
In order to increase genetic variability for improvement and better adaptation in the present days’ changing climate, present investigation has been done in Andrographis paniculata (Burm. F.) Nees., (also known as Kalmegh in Ayurveda), an ethnomedicinal wild plant with highly immuneboosting properties. For the purpose, healthy, dry and homogeneous seeds were treated with four doses of gamma rays from Co60 sources at the dose rate of 1.55 Gy per second(selected on the basis of LD50i.e. 25Gy (gray), 50Gy, 100Gy and 200Gy along with one set of nonirradiated seeds and sown in triplicates in a completely randomized block design (CRBD). Higher doses were detrimental hence not suggested for further mutation breeding experiments. Ho
Key words: Andrographis paniculata (Kalmegh), Chromosomal aberrations, Gamma rays, Genetic variation, Meiosis, Tricotyledon, Wild medicinal plants
E-mail: kshama.dwivedi gmail.com
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|Coded & Designed by Volodymyr Duplij||Modified 03.10.23|