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Use of wild Pennisetum species for improving biotic and abiotic stress tolerance in pearl millet

OAR@ICRISAT

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Field Value
 
Relation http://oar.icrisat.org/11701/
https://doi.org/10.1002/csc2.20408
doi:10.1002/csc2.20408
 
Title Use of wild Pennisetum species for improving biotic and abiotic stress tolerance in pearl millet
 
Creator Sharma, S
Sharma, R
Pujar, M
Yadav, D
Yadav, Y
Rathore, A
Mahala, R S
Singh, I
Verma, Y
Deora, V S
Vaid, B
Jayalekha, A K
Gupta, S K
 
Subject Abiotic Stress
Biotic Stress
Pearl Millet
 
Description Pearl millet [Pennisetum glaucum (L.) R. Br.] is one of the world’s hardiest warmseason
cereal crop cultivated for food and animal feed in the semi-arid tropics of
Asia and Africa. This crop faces terminal drought during rainy and flowering-stage
heat stress during summer seasons. Blast is emerging as a serious threat affecting
its production and productivity in India. Using wild P. violaceum (Lam) Rich. and
pearl millet cultivars, prebreeding populations were developed following backcross
method. These populations were evaluated in target ecologies in India at three locations
during the 2018 summer season for flowering-stage heat stress and at two locations
during the 2018 rainy season for terminal drought stress.Atotal 18 introgression
lines (ILs) from Population (Pop) 3 exhibited improved seed set under high heat stress
vs. the cultivated parent, whereas no IL was better than the cultivated parent in Pop
4. Under rainfed conditions at Hisar and Bawal, India, 19 ILs from Pop 3 and 16 ILs
from Pop 4 showed significantly higher dry fodder yield than the cultivated parents.
Further, screening of ILs for five diverse pathotype isolates—Pg 45, Pg 138, Pg 186,
Pg 204, and Pg 232—of blast resulted in the identification of resistant ILs. Use of
these promising ILs in breeding programs will assist in developing new varieties and
hybrids with improved tolerance to biotic and abiotic stresses. The study indicated
the genetic differences between the parents involved in crossing and also highlighted
the importance of precise phenotyping of wild species for target trait prior to use in
prebreeding work.
 
Publisher Wiley
 
Date 2020-12
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://oar.icrisat.org/11701/1/Pearl%20millet%20research%20article%20Crop%20Science%202021.pdf
Sharma, S and Sharma, R and Pujar, M and Yadav, D and Yadav, Y and Rathore, A and Mahala, R S and Singh, I and Verma, Y and Deora, V S and Vaid, B and Jayalekha, A K and Gupta, S K (2020) Use of wild Pennisetum species for improving biotic and abiotic stress tolerance in pearl millet. Crop Science (TSI), 61 (1). pp. 289-304. ISSN 0011-183X