Indian Society of Genetics & Plant Breeding

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Response of different peanut genotypes to reduced phosphorous availability

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Performances of 23 peanut genotypes comprising of
popular varieties and few widely used germplasm
accessions were compared under P-unfertilized and Pfertilized conditions during kharif and summer seasons to
identify P-efficient and P-inefficient genotypes. Yield
parameters and P concentrations in different plant parts at
maturity were recorded and P-efficiency indices calculated.
Significant differences among peanut genotypes, P levels
and P × genotype interactions were observed for all the
traits. LP caused 33% and 23% yield reduction during kharif
and summer season respectively. However, performance
of genotypes varied with the season and P supply.
Genotypes FeESG-10, GG-7, GG-20 and TG-37A with high
yield, kernel P-uptake and P concentration in leaf were Pefficient. On the contrary genotypes NRCG-162, GPBD-4,
NRCG-7320 and NRCG-7085 were identified as P-inefficient.
As an immediate solution to P deficient soils, the P-efficient
genotypes could be directly grow
 

Keywords: Peanut, P-unfertilized, P-fertilized, P efficiency, P uptake

Info

Year: 2017
Volume: 77
Issue: 1
Article DOI: 10.5958/0975-6906.2017.00014.1
Print ISSN: 0019-5200
Online ISSN: 0975-6906

Authors

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H. N. Meena info_circle
A. L. Singh info_circle
S. K. Bera info_circle
M. C. Dagla info_circle
Narendra Kumar info_circle
A. D. Makwana info_circle

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