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Genetic variability, heritability and genetic advance in marigold.
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2000
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Plant GeneticsGenetic AdvanceHigh HeritabilityFitnessBotanyMedicineGeneticsEvolutionary BiologyPlant ReproductionStatistical GeneticsBiostatisticsGenetic VariationHie Present InvestigationPublic HealthPopulation GeneticsPlant BreedingFrench MarigoldHorticultural Plant
Hie present investigation conducted on 12 cultivars of African and French marigold depicted significant differences in all the characters studied. The coefficient of variation was minimum for duration of flowering (P.C.V. = 15.20, G.C.V. = 1489) and maximum for duration of flowering (P.C.V. = 64.67, G.C.V. = 63.84) in French marigold but in African marigold it was minimum for plant height 60 days after transplanting (P.C.V. = 8.14, G.C.V. = 7.74). Heritability estimates for all the characters were generally very high. High heritability along with high genetic advance was observed for flower yield per plot (h2 = 97.52, GA = 129.85), yield per hectare (h2 = 99.63, GA = 131.79) and number of flowers per plant (h2 = 98.96, GA = 89.98) in French marigold whereas in African marigold high values were observed for weight of dry flower (h2 = 99.60, GA = 108.50), flower yield per plot (h2 99.74, GA = 88.97) and flower yield per hectare (h2 = 97.34, GA =87.46).