Journal article
Phenotyping chickpeas and pigeonpeas for adaptation to drought
Frontiers in Physiology, Vol.3, Art. 00179
2012
Abstract
The chickpea and pigeonpea are protein-rich grain legumes used for human consumption in many countries. Grain yield of these crops is low to moderate in the semi-arid tropics with large variation due to high GxE interaction. In the Indian subcontinent chickpea is grown in the post-rainy winter season on receding soil moisture, and in other countries during the cool and dry post winter or spring seasons. The pigeonpea is sown during rainy season which flowers and matures in post-rainy season. The rainy months are hot and humid with diurnal temperature varying between 25 and 35°C (maximum) and 20 and 25°C (minimum) with an erratic rainfall. The available soil water during post-rainy season is about 200–250 mm which is bare minimum to meet the normal evapotranspiration. Thus occurrence of drought is frequent and at varying degrees. To enhance productivity of these crops cultivars tolerant to drought need to be developed. ICRISAT conserves a large number of accessions of chickpea (>20,000) and pigeonpea (>15,000). However only a small proportion (<1%) has been used in crop improvement programs mainly due to non-availability of reliable information on traits of economic importance. To overcome this, core and mini core collections (10% of core, 1% of entire collection) have been developed. Using the mini core approach, trait-specific donor lines were identified for agronomic, quality, and stress related traits in both crops. Composite collections were developed both in chickpea (3000 accessions) and pigeonpea (1000 accessions), genotyped using SSR markers and genotype based reference sets of 300 accessions selected for each crop. Screening methods for different drought-tolerant traits such as early maturity (drought escape), large and deep root system, high water-use efficiency, smaller leaflets, reduced canopy temperature, carbon isotope discrimination, high leaf chlorophyll content (drought avoidance), and breeding strategies for improving drought tolerance have been discussed.
Details
- Title
- Phenotyping chickpeas and pigeonpeas for adaptation to drought
- Authors/Creators
- H.D. Upadhyaya (Author/Creator) - International Crops Research Institute for the Semi-Arid TropicsJ. Kashiwagi (Author/Creator) - Hokkaido UniversityR.K. Varshney (Author/Creator) - International Crops Research Institute for the Semi-Arid TropicsP.M. Gaur (Author/Creator) - International Crops Research Institute for the Semi-Arid TropicsK.B. Saxena (Author/Creator) - International Crops Research Institute for the Semi-Arid TropicsL. Krishnamurthy (Author/Creator) - International Crops Research Institute for the Semi-Arid TropicsC.L.L. Gowda (Author/Creator) - International Crops Research Institute for the Semi-Arid TropicsR.P.S. Pundir (Author/Creator)S.K. Chaturvedi (Author/Creator) - Indian Institute of Pulses ResearchP.S. Basu (Author/Creator) - Indian Institute of Pulses ResearchI.P. Singh (Author/Creator) - Indian Institute of Pulses Research
- Publication Details
- Frontiers in Physiology, Vol.3, Art. 00179
- Publisher
- Frontiers
- Identifiers
- 991005545242207891
- Copyright
- © 2012 Upadhyayaetal.
- Murdoch Affiliation
- Murdoch University
- Language
- English
- Resource Type
- Journal article
UN Sustainable Development Goals (SDGs)
This output has contributed to the advancement of the following goals:
Source: InCites
Metrics
26 File views/ downloads
80 Record Views
InCites Highlights
These are selected metrics from InCites Benchmarking & Analytics tool, related to this output
- Collaboration types
- Domestic collaboration
- International collaboration
- Citation topics
- 3 Agriculture, Environment & Ecology
- 3.4 Crop Science
- 3.4.96 QTL
- Web Of Science research areas
- Physiology
- ESI research areas
- Biology & Biochemistry