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Identifying phosphorus use efficient genotypes by evaluating a chickpea reference set across different phosphorus regimes

OAR@ICRISAT

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Relation http://oar.icrisat.org/12831/
https://www.cambridge.org/core/journals/plant-genetic-resources/article/identifying-phosphorus-use-efficient-genotypes-by-evaluating-a-chickpea-reference-set-across-different-phosphorus-regimes/6C6BFCD6A8088FE2A0CEBCB43FE751EC
https://doi.org/10.1017/S1479262124000236
 
Title Identifying phosphorus use efficient genotypes by evaluating a chickpea reference set across different phosphorus regimes
 
Creator Kumar, A S
Singh, Satinder
Sharma, P
Singh, I
Salaria, S
Srinivasan, S
Thudi, M
Gill, B S
Singh, Sarvjeet
 
Subject Chickpea
Genetics and Genomics
 
Description Low phosphorus use efficiency (PUE) is one of the abiotic factors that hamper yield and production potential in chickpea (Cicer arietinum L.). Higher yield coupled with improved PUE can make this crop more adaptive and competitive to wide cropland area, especially on marginal soils having low-level phosphorus (P). To identify chickpea germplasm lines that assimilate phosphorus more efficiently under P-deficient soils, 288 diverse genotypes of chickpea belonging to reference set were evaluated for yield component traits and PUE under field conditions for two consecutive years at two phosphorus levels (low P – no phosphorus application and high P – phosphorus application at 40 kg/ha). Based on 2-year evaluation of data under high and low P soil conditions, we identified strong correlations for traits like number of primary and secondary branches, number of pods, biological yield and seed yield indicating that these traits can be used as proxy traits for PUE. ICC 6571 was the best performing genotype under low P conditions while ICC 6579 yielded maximum under high P regime. We report 16 genotypes namely ICC 1052, ICC 1083, ICC 1098, ICC 1161, ICC 2072, ICC 4418, ICC 4567, ICC 4991, ICC 5504, ICC 5639, ICC 7413, ICC 8350, ICC 9590, ICC 9702, ICC 11584 and ICC 13357 as phosphorus use efficient genotypes based on their better performance for yield and yield-contributing traits under low P compared to high P conditions. These genotypes can be exploited in future as potential donors for development of phosphorus use efficient chickpea cultivars.
 
Publisher Cambridge University Press
 
Date 2024-05-17
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Rights cc_attribution
 
Identifier http://oar.icrisat.org/12831/1/Plant%20Genetic%20Resources_Characterization%20and%20Utilization_1-10_2024.pdf
Kumar, A S and Singh, Satinder and Sharma, P and Singh, I and Salaria, S and Srinivasan, S and Thudi, M and Gill, B S and Singh, Sarvjeet (2024) Identifying phosphorus use efficient genotypes by evaluating a chickpea reference set across different phosphorus regimes. Plant Genetic Resources: Characterization and Utilization (TSI). pp. 1-10. ISSN 1479-2621