Not Available

Not AvailableNot AvailableNot Availabl

Not Available

Not AvailableLow phosphorus (P) availability in soil is one of the limiting factors affecting groundnut productivity by reducing leaf area and dry weight. This study evaluated groundnut genotypes for their ability to thrive and produce on calcareous soils with low phosphorus availability. Assessment of shoot biomass, root biomass, shoot Pconcentration, kernel P-concentration, P-accumulation and yield were completed using three phosphorus levels and 23 groundnut genotypes. Study was conducted with three phosphorus levels namely no (P0), normal P (P50) and high P (P100) as the main factor with genotypes as second factor arranged in a factorial completely randomized design. Significant genotypic differences were observed for the characters studied. Shoot P-concentration and accumulation increased with increase in phosphorus levels, whereas, root biomass and kernel P-concentration decreased with increase in phosphorus levels. There was varying response of genotypes for yield, kernel Pconcentration and accumulation, shoot P-concentration and accumulation, biomass and harvest index. In addition, genotypes ICG-221, GG-5, TG-37A and FeESG-10 were designated as ‘high yielder–non-responsive’, whereas, genotypes NRCG-15049, TPG-41, GPBD-4 and NRCG-3498 were identified as ‘low yielder - responsive’. These genotypes can be used in breeding programs to develop ‘high-yielder– responsive’ genotypes.Not Availabl

Not Available

Not AvailablePresent study was undertaken to study the inheritance pattern of yield and mineral nutrients (Iron, Phosphorus, Potassium and Zinc) using five parameter generation mean analysis (P1, P2, F1, F2 and F3) in two peanut crosses (Girnar-3 × FDRS-10 and TG-37A × FDRS-10). Scaling and joint scaling tests were significant for most characters studied indicating that additive-dominance model alone is not enough to explain the inheritance of characters studied. Both additive and dominance variance played important role for most of the traits. Traits PY, HY, HKW, SHP and RDW are governed by additive gene whereas Kshoot, Kroot, Feshoot, Feroot, Pshoot and Proot were governed by both additive and non-additive gene effects. Positive estimates of ‘i’ for Zn, K and P in cross-1 (Girnar-3 × FDRS-10) indicates that parents employed were phenotypically diverse. Therefore cross-1 holds better chance for identifying genotypes with high mineral concentrations without compromising yield levels. Hence, pedigree method of breeding could be followed for improving yield and selection could be followed in later generation when population is stable to select genotypes with high mineral concentrations.Not Availabl