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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
Index Copernicus ICI Journals Master List 2019 - IJCMAS--ICV 2019: 96.39 For more details click here
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2019: 96.39
Index Copernicus ICI Journals Master List 2019 - IJCMAS--ICV 2019: 96.39
For more details click here

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Original Research Articles

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2018.7(8): 746-757
DOI: https://doi.org/10.20546/ijcmas.2018.708.082


Cytokinin Application Retains Water Status and Carbohydrate Content of Wheat Genotypes under PEG-6000 Induced Water Deficit
Aparjot Kaur* and S.K. Thind
Department of Botany, Punjab Agricultural University, Ludhiana, Punjab, India
*Corresponding author
Abstract:

Among abiotic stresses drought is one of the most important limiting factor that adversely affect the plant production in the majority of agricultural crops of the world. Presently exogenous application of cytokinins i.e., Kinetin (@ 10, 20 and 40 mg/L) and Benzyl adenine(@ 25 and 50 mg/L) was studied on plant Relative leaf water content (RLWC), Water saturation deficit (WSD), relative saturation deficit (RSD) and carbohydrate metabolism (total soluble sugars and starch) content of wheat cultivars under water deficit conditions. PEG-induced (-0.4Mpa) stress significantly decreased the content of RLWC and Starch content in wheat cvs (HD2967, PBW660, WH1105 and PBW658). Exogenous application of both cytokinins {Kinetin (Kn) and benzyl adenine (BA)} significantly increased the leaf water content and starch in leaves of wheat seedlings. The total soluble sugars content, WSD and RSD was lesser in control of all selected cultivars and increased significantly under PEG-6000 induced drought stress and significant increase in soluble sugars was further recorded when cytokinins were supplied exogenously. Significant decline in WSD and RSD was observed with the application of both cytokinins. From among the tested levels Kn @ 40 mg/L and BA @ 50 mg/L had more pronounced effect. The accumulation of more total soluble sugars and maintenance of starch content leads to more water retention and decline in water deficit of leaf tissue with exogenously applied cytokinins protects the plant from adverse effect of drought.


Keywords: Leaf water content, Soluble sugars, Starch, Cytokinins, Wheat
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How to cite this article:

Aparjot Kaur and Thind, S.K. 2018. Cytokinin Application Retains Water Status and Carbohydrate Content of Wheat Genotypes under PEG-6000 Induced Water Deficit.Int.J.Curr.Microbiol.App.Sci. 7(8): 746-757. doi: https://doi.org/10.20546/ijcmas.2018.708.082