Record Details

Impact of drought stress on simultaneously occurring pathogen infection in field-grown chickpea

NIPGR Digital Knowledge Repository (NDKR)

View Archive Info
 
 
Field Value
 
Title Impact of drought stress on simultaneously occurring pathogen infection in field-grown chickpea
 
Creator Sinha, Ranjita
Irulappan, Vadivelmurugan
Mohan-Raju, Basavaiah
Suganthi, Angappan
Senthil-Kumar, Muthappa
 
Subject chickpea
drought stress
pathogen infection
Rhizoctonia bataticola
DRR and BRR
 
Description Accepted date: 11 March 2019
Drought stress and pathogen infection simultaneously occur in the field. In this study, the interaction of these two stresses with chickpea, their individual and combined effect and the net impact on plant growth and yield traits were systematically assessed under field and confined pot experiments. The field experiments were conducted for four consecutive years from 2014–15 to 2017–18 at different locations of India. Different irrigation regimes were maintained to impose mild to severe drought stress, and natural incidence of the pathogen was considered as pathogen stress. We observed an increased incidence of fungal diseases namely, dry root rot (DRR) caused by Rhizoctonia bataticola, black root rot (BRR) caused by Fusarium solani under severe drought stress compared to well-irrigated field condition. Similar to field experiments, pot experiments also showed severe disease symptoms of DRR and BRR in the presence of drought compared to pathogen only stress. Overall, the results from this study not only showed the importance of combined drought and DRR stress but also provided systematic data, first of its kind, for the use of researchers.
Projects at the M.S.-K lab are supported by National Institute of Plant Genome Research core funding and DBT
Ramalingaswami re-entry fellowship grant (BT/RLF/re-entry/23/2012). RS and VI acknowledge CSIR for CSIRSRA fellowship (SRA Pool No. 9817-A) and DBT- JRF (DBT/2015/NIPGR/430), respectively. We thank Dr. M.
Saifulla (GKVK Bangalore), Dr. Jyothi, (GKVK Bangalore), Dr. Nagarjuna (GKVK, Bangalore), and Mr. Kumar
(GKVK, Bangalore) for their help in field experiments at GKVK field trials. We also thank Mr. Rahim Tarafdar
(lab assistant, NIPGR), Mr. Sundar (lab assistant, NIPGR), and Mr. Ashok Mandal (field assistant, NIPGR) for
their help at the laboratory and NIPGR field trials. We also thank Mr. Ashok Kumar (NIPGR) for his help with
CIF instruments. We thank Drs. Muthamilarasan Mehanathan, Mahesh Patil, Piyush Priya and Bendangchuchang
Longchar for internally reviewing the manuscript
 
Date 2019-03-19T10:08:33Z
2019-03-19T10:08:33Z
2019
 
Type Article
 
Identifier Scientific Reports, 9(1): 5577
2045-2322
http://223.31.159.10:8080/jspui/handle/123456789/930
https://www.nature.com/srep/
https://doi.org/10.1038/s41598-019-41463-z
 
Language en_US
 
Format application/pdf
 
Publisher Springer Nature