Journal of Stress Physiology &
Biochemistry, Vol. 9 No. 3
2013, pp. 122-128 ISSN 1997-0838
Original Text Copyright (cc) 2013 by Ratnakar, Rai
ORIGINAL ARTICLE
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QueryDate : 2016-12-24
Cites : 1
Alleviation of the Effects of
NaCl Salinity in Spinach (Spinacia
oleracea L. var. All Green) Using Plant Growth Regulators
Anjali Ratnakar1 and
Aruna Rai2*
1 Department
of Botany, K. J. Somaiya College of Science and Commerce, Vidyavihar,
Mumbai – 400077. 2 Department of Botany, Smt. C. H. M. College,
Ulhasnagar-421003, Thane, Maharashtra.
*E-Mail: aru_r17@hotmail.com Received February 21, 2013
Exposure to
environmental stress due to salinity has been reported to result in
adverse effects on the growth of plants. Studies have shown that the
use of plant growth regulators (PGRs) has an ameliorative effect on
plants grown under saline conditions. In the present investigation,
effect of gibberellic acid (GA3), 6-furfuryladenine (Kinetin) and
benzyl adenine (BA) on Spinacia
oleracea L. var. All Green, cultivated under saline conditions
has been studied. After a pre-soaking treatment of six hours in 20 mg L-1
solutions of GA3, Kinetin and BA, the seeds were allowed to germinate
and grow for forty-five days under saline conditions. On the analysis
of mature leaves, it was observed that both chlorophyll a and b, and
total chlorophyll showed an increase in PGR-treated plants compared to
the untreated set. With the pretreatment, the reducing and non-reducing
sugar content, as well as protein content of the leaves showed an
increase in accumulation compared to the untreated plants. The
accumulation of the stress metabolite proline, which increases under
saline conditions, showed a significant decrease in the plants
pretreated with PGRs.
