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QTL Mapping for Early Ground Cover in Wheat (Triticum aestivum L.) under Drought Stress


Affiliations
1 Division of Crop Improvement, Indian Institute of Pulses Research, Kanpur 208 024, India
2 Bioseeds Research Pvt Ltd, ICRISAT Campus, Hyderabad 500 033, India
3 Department of Genetics and Plant Breeding, College of Agriculture, GB Pant University of Agriculture and Technology, Pantnagar 263 145, India
4 ICAR-National Research Center for Plant Biotechnology, Pusa, New Delhi 110 012, India
5 Division of Genetics, Indian Agricultural Research Institute, Pusa, New Delhi 110 012, India
6 Indian Institute of Wheat and Barley Research, Karnal 132 001, India
7 Directorate of Research, Indian Agricultural Research Institute, Pusa, New Delhi 110 012, India
 

Early vigour had been a target trait for developing wheat varieties tolerant to moisture stress. Manifestation of this trait depends on the relative efficiency of a genotype to utilize the residual soil moisture and dew precipitation, thereby developing a good canopy in lesser time after emergence. Lack of proper quantification system had always prevented the use of early vigour as a dependable selection parameter under field conditions. Digital imaging intervention has facilitated phenotyping this parameter in the form of early ground cover (EGC). Utilizing this phenotyping strategy, we have identified a quantitative trait locus for EGC located on the chromosome 6A (short arm) with a significant additive component under moisture stress in the north western plain zone of India.

Keywords

Digital Ground Cover, Drought Tolerance, Early Ground Cover, Quantitative Trait Loci, Wheat.
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  • QTL Mapping for Early Ground Cover in Wheat (Triticum aestivum L.) under Drought Stress

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Authors

Biswajit Mondal
Division of Crop Improvement, Indian Institute of Pulses Research, Kanpur 208 024, India
Anupam Singh
Bioseeds Research Pvt Ltd, ICRISAT Campus, Hyderabad 500 033, India
Aneeta Yadav
Department of Genetics and Plant Breeding, College of Agriculture, GB Pant University of Agriculture and Technology, Pantnagar 263 145, India
Ram Sewak Singh Tomar
ICAR-National Research Center for Plant Biotechnology, Pusa, New Delhi 110 012, India
Vinod
Division of Genetics, Indian Agricultural Research Institute, Pusa, New Delhi 110 012, India
Gyanendra Pratap Singh
Indian Institute of Wheat and Barley Research, Karnal 132 001, India
Kumble Vinod Prabhu
Directorate of Research, Indian Agricultural Research Institute, Pusa, New Delhi 110 012, India

Abstract


Early vigour had been a target trait for developing wheat varieties tolerant to moisture stress. Manifestation of this trait depends on the relative efficiency of a genotype to utilize the residual soil moisture and dew precipitation, thereby developing a good canopy in lesser time after emergence. Lack of proper quantification system had always prevented the use of early vigour as a dependable selection parameter under field conditions. Digital imaging intervention has facilitated phenotyping this parameter in the form of early ground cover (EGC). Utilizing this phenotyping strategy, we have identified a quantitative trait locus for EGC located on the chromosome 6A (short arm) with a significant additive component under moisture stress in the north western plain zone of India.

Keywords


Digital Ground Cover, Drought Tolerance, Early Ground Cover, Quantitative Trait Loci, Wheat.

References





DOI: https://doi.org/10.18520/cs%2Fv112%2Fi06%2F1266-1271