Evaluating the role of biopriming and nanopriming on the morphometric, biochemical, and yield parameters of Chickpea (Cicer arietinum L.) under drought stress

Simran Rani; Priyanka Dahiya; Aarzoo Sharma; Yash Vashisth; Kiran Arora; Amita Suneja Dang; Pooja Suneja

Plant Stress (Dec 2024)

Evaluating the role of biopriming and nanopriming on the morphometric, biochemical, and yield parameters of Chickpea (Cicer arietinum L.) under drought stress

Simran Rani,
Priyanka Dahiya,
Aarzoo Sharma,
Yash Vashisth,
Kiran Arora,
Amita Suneja Dang,
Pooja Suneja

Affiliations

Simran Rani: Plant microbe interaction laboratory, Department of Microbiology, Maharshi Dayanand University, Rohtak 124001, Haryana, India
Priyanka Dahiya: Plant microbe interaction laboratory, Department of Microbiology, Maharshi Dayanand University, Rohtak 124001, Haryana, India
Aarzoo Sharma: Plant microbe interaction laboratory, Department of Microbiology, Maharshi Dayanand University, Rohtak 124001, Haryana, India
Yash Vashisth: Plant microbe interaction laboratory, Department of Microbiology, Maharshi Dayanand University, Rohtak 124001, Haryana, India
Kiran Arora: Kirori Mal College, University of Delhi, Delhi, 10007, India
Amita Suneja Dang: Centre for Medical biotechnology, Maharshi Dayanand University, Rohtak 124001, Haryana, India
Pooja Suneja: Plant microbe interaction laboratory, Department of Microbiology, Maharshi Dayanand University, Rohtak 124001, Haryana, India; Corresponding author: Department of Microbiology, Maharshi Dayanand University, Rohtak, 124001 Haryana, India.

Journal volume & issue: Vol. 14
p. 100675

Abstract

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This study evaluated drought mitigation potential of biopriming with plant growth promoting endophytic bacteria (PGPEBs) and nanopriming with their biological copper nanoparticles (CuNPs) and chemical CuNPs under polyethylene glycol (PEG-6000) induced moderate (MD-5%) and severe drought (SD-10%) in chickpea (Cicer arietinum L.). The crop harvested at 15 DDS (Days to drought stress) was analysed for morphometric and biochemical parameters of drought tolerant (DT), BG-4958 and drought sensitive (DS), ICC-1882 chickpea varieties. In morphometric traits of DT variety, N1X led 384% increase in shoot dry weight (SDW) under MD while B2 in root dry weight (RDW) under SD (418%). For DS variety, N2X led 444% and 727% increase in SDW (MD) and RDW (SD), respectively. Amongst biochemical parameters, maximum increment was noticed in total chlorophyll content (TCC) by B1 under MD (703%) as well as SD (1206%) in DT variety. B1 also led highest increment (758%) in TCC of DS variety under SD while B2 under MD (300%). B2 resulted in 242% increment in total soluble carbohydrates (TSC) and 47% increase in total protein content (TPC) of DS variety under SD. N1X and N1Y led 318% and 100% increase in the activity of ascorbate peroxidase (APX) and peroxidase (POD) of DS variety. This variety exhibiting pronounced response was subjected to correlation analysis revealing highest correlation amongst morpho-biochemical traits under SD. Score plot in principal component analysis (PCA) of DS variety showed that biopriming and N1X having higher score values for PC2 mainly influenced by biochemical parameters also improved the yield parameters to a greater extent as analyzed on 120 DDS. Harvesting index, the ultimate indicator of the agricultural output remained insignificant in DT variety. On the other hand, B2 and N1X led highest harvesting indices under MD (94%) and SD (69%), respectively, in DS variety, owing to their higher grain yield than biological yield and higher score values influencing biochemical parameters under stress. The present study provides insights into the beneficial role of PGPEBs and biosynthesized CuNPs in mitigating the adverse effects of drought in chickpea.

Published in Plant Stress

ISSN: 2667-064X (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Science: Botany: Plant ecology
Website: https://www.journals.elsevier.com/plant-stress/

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