Data on identified foliar fungal disease-resistant introgression lines with higher pod and haulm yield testing of Groundnut in MABC rainy 2013

Abstract

Introgression lines (ILs) of groundnut with enhanced resistance to rust recorded increased pod and haulm yield in testing. Marker-assisted backcrossing (MABC) approach was used to introgress a genomic region containing a major QTL that explains >80% of phenotypic variance (PV) for rust resistance. ILs in the genetic background of TAG-24, ICGV 91114 and JL 24 were evaluated for two seasons (Rainy 2013 and 2014) to select 20 best ILs based on resistance, productivity parameters and maturity duration. selected ILs was conducted in locations including disease hot spots.The incidence of rust is severe during the season. In all the locations, infector rows of susceptible variety around the experimental plot and in between test entries ensured uniform spread of disease. Only the disease scores at ICRISAT, Patancheru. Background genotype, environment and genotype X environment interactions are important for expression of resistance governed by the QTL region. Six best ILs namely ICGV13192, ICGV 13193, ICGV 13200, ICGV 13206, ICGV 13228 and ICGV 13229 were selected with 39–79% higher mean pod yield and 25-89% higher mean haulm yield over their respective recurrent parents. Pod yield increase was contributed by increase in seed mass and number of pods per plant.
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