Genetic approaches for assessment of phosphorus use efficiency in groundnut (Arachis hypogaea L.)

Production of phosphorus efficient genotypes can reduce environmental pollution. Identification of P -efficient groundnut genotypes is a need of the hour to sustain in P -deficient soils. The pot experiment showed significant differences between genotypes (G) and treatments (T) for all the traits an...

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Published in:Scientific reports 2022-12, Vol.12 (1), p.21552-13, Article 21552
Main Authors: Kadirimangalam, Sai Rekha, Jadhav, Yashoda, Nagamadhuri, K. V., Putta, Latha, Murugesan, Tharanya, Variath, Murali T., Vemula, Anil Kumar, Manohar, Surendra Singh, Chaudhari, Sunil, Choudhary, Sunita, Kholova, Jana, Pasupuleti, Janila
Format: Article
Language:English
Subjects:
631/443
631/449
Acid phosphatase
Arachis - genetics
Arachis hypogaea
Dry weight
Efficiency
Gene mapping
Genetics
Genotypes
Humanities and Social Sciences
Leaves
multidisciplinary
Phenotype
Phosphorus
Plant Breeding
Pollution control
Population genetics
Science
Science (multidisciplinary)
Soil
Transpiration
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Summary:Production of phosphorus efficient genotypes can reduce environmental pollution. Identification of P -efficient groundnut genotypes is a need of the hour to sustain in P -deficient soils. The pot experiment showed significant differences between genotypes (G) and treatments (T) for all the traits and G × T interaction for majority of traits. The G × T × Y interaction effects were also significant for all the traits except leaf P% (LP%), leaf acid phosphatase (LAP) and root dry weight (RDW). In lysimeter experiment, the effect of G, T and G × T were significant for leaf dry weight (LDW), stem dry weight (SDW), total transpiration (TT) and transpiration efficiency (TE). For traits, LDW, SDW, TT, TE, ICGV 00351 and ICGS 76; for SDW, TT, ICGV 02266 are best performers under both P -sufficient and deficient conditions. Based on P-efficiency indices and surrogate traits of P -uptake, ICGV’s 02266, 05155, 00308, 06040 and 06146 were considered as efficient P -responding genotypes. From GGE biplot, ICGV 06146 under P -deficient and TAG 24 under both P -sufficient and deficient conditions are portrayed as best performer. ICGV 06146 was identified as stable pod yielder and a promising genotype for P -deficient soils. The genotypes identified in this study can be used as a parent in developing mapping population to decipher the genetics and to devleop groundnut breeding lines suitable to P-deficient soils.
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-022-24016-9