Salt stress induced alteration in growth characteristics of a grass Pennisetum alopecuroides.
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Date
2011-11
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Abstract
Salinity is one of the major abiotic stresses that adversely affect crop productivity and quality. The present
investigation was carried out to study the alterations in the growth characteristics of a grass species,
Pennisetum alopecuroides under the influence of sodium chloride (NaCl) salinity. From the results it is clear
that shoot length of Pennisetum alopecuroides was increased by 13.17% at 100 mM NaCl concentration
while the root length was observed to be increased at 50 mM NaCl concentration by 26.93%. Maximum
height of the plant was observed by 18.23% at 50 mM while shoot to root ratio was higher at 300 mM
concentrations by 29.17% increase over the control. Moreover, the maximum percent increase in leaf area
was recorded as 11.17% (100 mM). Fresh weight was increased by 50.92 % at 100 mM while dry weight
of the experimental grass was increased by 33.64 % at the same concentration of salt to the rooting medium
while moisture percentage was increased to a maximum by 24.61% at 50 mM. It appears that the grass
species studied exhibit a moderate salinity tolerance as far as linear growth of plant is concerned.
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Keywords
Growth, Pennisetum alopecuroides, Sodium chloride, Salinity stress
Citation
Mane A V, Karadge B A, Samant J S. Salt stress induced alteration in growth characteristics of a grass Pennisetum alopecuroides. Journal of Environmental Biology. 2011 Nov; 32(6): 753-758.