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Journal of Environmental Biology

pISSN: 0254-8704 ; eISSN: 2394-0379 ; CODEN: JEBIDP
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    Abstract - Issue Sep 2018, 39 (5)                                     Back


nstantaneous and historical temperature effects on a-pinene

Interactive effects of gibberellic acid and salt stress on growth parameters and chlorophyll content in oat cultivars

 

Anju Chauhan1*, Nidhi Rajput1, Ashok Kumar1, J.S. Verma2 and A.K. Chaudhry1

1Department of Botany, School of Sciences, IFTM University, Moradabad-244 001, India

2Department of Genetics and Plant Breeding, G.B. Pant University of Agriculture and Technology, Pantnagar-263 145, India

*Corresponding Author E-mail: anjuchauhan696@gmail.com

 

 

 

Key words

Chlorophyll content

Gibberellic acid

Oat cultivars

Seedling growth

Salinity stress 

 

 

Publication Data

Paper received : 15.03.2017

Revised received : 02.11.2017

Re-revised received : 21.12.2017

Accepted : 27.12.2017

 

Abstract

Aim: The main objective of this study was to evaluate the possible mode of interaction between salinity and application of gibberellic acid (GA3) and exploring how GA3 can mitigate the harmful effects of salinity. On the basis of reduction, growth parameter and chlorophyll contents, the cultivars were categorized as tolerant, moderate and sensitive.?

 

Methodology: To determine the effect of salinity on seed germination, seedling growth and chlorophyll contents pot experiment was carried out. Three different varieties (UPo-212, NDO-2 and UPO-94) were germinated under four different salinity levels (25, 50, 75 and 100mM). after 24 hrs., two sets of each were treated with 100 ppm of GA3 (reused for 15 days).

 

Results: The results revealed that when seedling were treated with GA3 under different salinity conditions, cv. NDO-2 and UPO-212 showed better growth and high chlorophyll content than cv. UPO-94. This study conducts that 100 ppm concentrations of GA3 will be able to overcome the toxic effects of salt stress in seed germination, seedling growth and chlorophyll contents.

 

Interpretation: The study reveals that application of GA3 is useful to mitigate salinity stress and is more effective on salt tolerant cultivars.

 

 

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