Journal of Stress Physiology & Biochemistry, Vol. 7 No. 1
2011, pp. 55-65 ISSN 1997-0838
Original Text Copyright (cc) 2011 by Amin Baghizadeh, Mahmood
Hajmohammadrezaei
ORIGINAL
ARTICLE
Data source : Google Scholar
QueryDate : 2016-12-24
Cites : 15
EFFECT OF DROUGHT STRESS AND ITS INTERACTION WITH
ASCORBATE AND SALICYLIC ACID ON OKRA (Hibiscus
esculents L.) GERMINATION AND SEEDLING GROWTH
Amin Baghizadeh1*, Mahmood Hajmohammadrezaei 1, 2
1Department of
biotechnology, International Center for Science, High Technology &
Environmental Sciences, Kerman 2Department of Biology, Payam Noor University, Tehran Branch, Iran
*Email- amin_4156@yahoo.com
Received January 28, 2011
Effect of drought stress was investigated at water
potentials of-0.2 &-0.4 MPA (by using PEG 6000) on okra germination
and seedling growth. In this study, percent germination, average time
necessary for germination in day, radical and plumule length, fresh and
dry weight of okra seedlings were measured. Effect of ascorbate and
salicylic acid and interaction of these tow substances were
investigated on germination and seedling growth under normal condition
and dry conditions. Drought inhabits from germination and seedling
growth in this plant. Ascorbate and salicylic acid increase germination
and decrease of average time necessary for germination under drought
conditions. The seeds that were treated by ascorbate and salicylic
acid, radical and plumule length, fresh and dry weight of radical and
plumule were increased. Results showed that ascorbate and salicylic
acid decrease effects and damages of drought stresses on okra
germination and seedlings growth. In general, adding salicylic acid and
ascorbic acid significantly relieved the harsh effects of drought on
okra germination and growth parameters and it seems that ascorbate and
salicylic acid were able to enhance the tolerant ability of the plant
to drought stress.
