Open Access
ARTICLE
Chilling effects after priming by nitric oxide applications on amelioration of leaf growth and photosynthetic pigments
Bibi A1, SA Majid2, A Munir3, A Ulfat4, G Javed2, S Khatoon2, N Azhar2, S Ashraf2, S Aziz2, N Mumtaz2
1 Department of Botany, Women University of Azad Jammu and Kashmir, Bagh-12460, Pakistan.
2 Department of Botany, University of Azad Jammu and Kashmir, Muzaffarabad-13100, Pakistan.
3 Department of Biotechnology, University of Azad Jammu and Kashmir, Muzaffarabad-13100, Pakistan.
4 Department of Botany, University of Poonch Rawalakot, Azad Kashmir -12350, Pakistan.
Address correspondence to: Asia Bibi, e-mail:
Phyton-International Journal of Experimental Botany 2018, 87(all), 178-182. https://doi.org/10.32604/phyton.2018.87.178
Abstract
Chilling stress on cereal crops is the major form of cold
stress that appears in some regions, and causes significant losses by
depressing seed germination, and seedling growth and establishment.
Hormones have the ability to reduce the stress effects in crops
by various mechanisms. To determine the role of nitric oxide in mitigating
chilling damages in wheat, two trials were conducted and seven
wheat varieties were used. Seeds of wheat varieties after priming
using three different concentrations (0, 10
-4, 10
-5 M) of sodium nitroprusside
as nitric oxide donor were grown under two growth conditions
(control, 4 °C) according to a completely randomized design
with three replicates. After measuring leaf length, leaf width and leaf
number, seedlings were harvested and photosynthetic pigments were
determined. Results revealed significant decrease in all the studied
parameters under chilling conditions compared to controls during
both trials. Nitric oxide donor at 10
-4 M concentration showed significant
improvement in all the studied aspects under both growth
conditions by ameliorating the chilling effects. So, it is concluded
that 10
-4 M nitric oxide induced tolerance in seedlings against chilling
stress. This accelerated photosynthetic activity by enhancing
photosynthetic pigments production and ultimately seedling growth.
Keywords
Cite This Article
APA Style
A, B., Majid, S., Munir, A., Ulfat, A., Javed, G. et al. (2018). Chilling effects after priming by nitric oxide applications on amelioration of leaf growth and photosynthetic pigments. Phyton-International Journal of Experimental Botany, 87(all), 178-182. https://doi.org/10.32604/phyton.2018.87.178
Vancouver Style
A B, Majid S, Munir A, Ulfat A, Javed G, Khatoon S, et al. Chilling effects after priming by nitric oxide applications on amelioration of leaf growth and photosynthetic pigments. Phyton-Int J Exp Bot. 2018;87(all):178-182 https://doi.org/10.32604/phyton.2018.87.178
IEEE Style
B. A et al., "Chilling effects after priming by nitric oxide applications on amelioration of leaf growth and photosynthetic pigments," Phyton-Int. J. Exp. Bot., vol. 87, no. all, pp. 178-182. 2018. https://doi.org/10.32604/phyton.2018.87.178