Analysis of genetic diversity through issr and rapd marker in terminalia chebula

Poonam Tiwari and Arpita Awasthi

In the present investigation, statistically significant differences were identified for time of leaf flushing and leaf shedding initiation. Several reasons may be attributed to this pattern. Early commencement of leaf flushing might have been shaped by the early onset of monsoon in those provenances compared to other provenances. The climate variables such as wind, rain, air, humidity, temperature and light intensity are the important factors determining the time and duration of different phonological events in the life of history of species. In the beginning of the growing season (January–March) leaf bud development and unfolding should reflect the thermal regime while, leaf fall in autumn is more complex process which is also induced by lack of light and low temperatures. Significant differences were observed for the duration of flowering among genotypes of T. chebula. Maximum duration (73 mean days) of flowering was noticed in Sirmaur (G3) followed by Mangawan (G5), Semariya (G6) and Mauganj (G2) registering 70, 68 and 67 mean days in 2018. But, however on an average the six genotypes of T. chebula continued flowering for 65.67 mean days and the flowering phase coincides with both bud initiation and fruit initiation phase, thus indicating the long flowering phase in T. chebula.

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