Seasonal Variation in Leaf Extracts of Dendrocalamus Strictus Sps-As Reflected in Differential Expression of Soluble Biosynthates
Journal Title: International Journal of Botany and Research (IJBR) - Year 2017, Vol 7, Issue 4
Abstract
A variation within species is the reflection of its genotype and its interaction with the environment. Seasonal cycles of temperature, photoperiod, light intensity, relative humidity and rainfall exert a pronounced control over the various biosynthetic pathways and provide it with a pattern to which developmental changes are physiologically locked. The present study carried out on the germplasm of D.strictus (raised via offsets collected from different eco-geographic zones of India with an altitudinal sprawl of 225-1367 mts) revealed substantial variation in biochemical characteristics in different seasons March –May, June-Aug and Dec-Jan. Significant inter-accession variation was observed among D.strictus sps. The maximum mean value of chlorophyll content (2.551 mg/gm), total soluble protein (18.02 mg/gm) and soluble sugars (25.24 mg/gm) were observed in A35 from Hoshiarpur,India. The average value of phenol content among the accessions was found to be 0.20 mg/gm. The accession A32 (0.3 mg/gm) from Kahanpur registered maximum mean value for phenol content. Overall significant seasonal differences in biochemical characteristics reflect the influence of extraneous factors underscoring the reciprocal relationship between genotype and environmental factors. The best association between season* genotypes with respect to photosynthates was mostly observed in the months of July-August in accessions from Punjab (A35).
Authors and Affiliations
Saira Malik, Sas Biswas, Syed mansoor, Dhiraj Kumar
Keywords
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