Record Details

Chickpea breeding for water-limited environments

OAR@ICRISAT

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Relation http://oar.icrisat.org/10214/
 
Title Chickpea breeding for water-limited environments
 
Creator Gaur, P M
Samineni, S
Thudi, M
Sajja, S
Chaturvedi, S K
Jayalakshmi, V
Babbar, A
Yasin, M
Mannur, D M
Vijaykumar, A G
Varshney, R K
Dixit, G P
 
Subject Abiotic Stress
Drought Tolerance
Plant Breeding
Chickpea
Drought
Water Resources
 
Description Chickpea (Cicer arietinum L.) is a dry season food legume and is
largely grown on residual soil moisture after the rainy season.
The crop often experiences moisture stress towards the end
of the crop season (terminal drought). The crop may also face
heat stress at the reproductive stage, if sowing is delayed. The
increasing climate variability, reflected in wide fluctuations in
temperatures and rainfall, is further aggravating risks of terminal
drought and heat stresses to chickpea crop, particularly in the
semi-arid tropics (SAT). The genetic approaches being used for
managing terminal drought and heat stresses include development
of varieties with early maturity and enhanced tolerance to
these stresses. Excellent progress has been made in the development
of early maturing varieties with high yield potential, which
helped in bringing additional area under cultivation and enhancing
productivity of chickpea in short-season SAT environments.
Several varieties with improved drought tolerance have been
developed by the classical approach of selecting for grain yield
under moisture stress conditions. Similarly, selection for pod set
in the crop, subjected to reproductive stage heat stress by delayed
planting, has helped in development of heat-tolerant varieties.
A genomic region called “QTL-hot spot”, which controls a
number of drought tolerance traits including root traits, has been
introgressed into several popular cultivars using marker-assisted
backcrossing (MABC); and introgression lines giving significantly
higher yield than the popular cultivars under moisture stress
conditions have been identified. Multi-parent advanced generation
inter-cross (MAGIC) approach has been found promising
in enhancing genetic recombination and developing lines with
enhanced tolerance to terminal drought and heat stresses. Integrated
breeding approaches involving, particularly, genomic
tools, precision phenotyping, and rapid generation turnover
techniques, have improved efficiency of chickpea breeding programs
in developing varieties better adapted to water limited
environments.
 
Date 2017-02
 
Type Conference or Workshop Item
PeerReviewed
 
Format application/pdf
 
Language en
 
Rights —
 
Identifier http://oar.icrisat.org/10214/1/Abstract_Book%2068.pdf
Gaur, P M and Samineni, S and Thudi, M and Sajja, S and Chaturvedi, S K and Jayalakshmi, V and Babbar, A and Yasin, M and Mannur, D M and Vijaykumar, A G and Varshney, R K and Dixit, G P (2017) Chickpea breeding for water-limited environments. In: InterDrought-V, February 21-25, 2017, Hyderabad, India.