Vol. 8 No. 1
Morpho-physiological evaluation of some mulberry genotypes under high moisture stress condition
Author(s): M. K. GHOSH, A. K. MISRA, SHIVNATH, C. DAS, T. SENGUPTA,P.K. GHOSH, M.K. SINGH AND B.B. BINDROO
Abstract: Field studies were conducted in west Bengal, India, in 2004, to evaluate the morphological and physiological characteristics of some mulberry genotypes exposed to high water stress. A total of 12 mulberry genotypes, i.e. S-1755, S-1718, C-2010, C-2011, C-2028, C-2014, C-1690, C-1990, JD-1, C-1991, C-2016 and C-1907, along with the commercial cultivars S-1 and S-1635 and 3 local controls (Malda local, Kolitba-3 and Jatinuni) were used. Data were recorded on mulberry root morphology and anatomy, physiological and biochemical parameters, nitrate reductase activity, nutrient availability and uptake and endogenous growth regulator (abscisic acid) content. Results showed that the C-2028 possessed better adaptation to waterlogged conditions compared to the other cultivars tested and recorded a higher leaf yield and low leaf fall. Furthermore, this cultivar had high membrane stability, higher abscisic acid accumulation during stress conditions and low ethylene content under waterlogged conditions.
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