Polygenic and Oligogenic analyses for metric traits in sunflower genotypes
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Abstract
Sunflower is a valuable oilseed crop that is beneficial both for animals and human beings. The current experiment aimed to study correlation analyses for various sunflower genotypes for yield and its related traits. The present research was carried out in Randomized Complete Block Design (RCBD) with three replications at the Oilseed section, Agriculture Research Institute (ARI), Tando Jam during the spring season of 2016. Variation was observed in sixteen sunflower lines compared with two check varieties. The trait's periods of flower initiation, periods to completion, plant stature (cm), head diameter (cm), and Seed yield (Kg/ha-1) were observed significantly different at P≤0.01 probability level. The number of plants plot-1 and 100 seed weight (g) was insignificant. SF-16001 and SF-16012 showed maximum periods of flower initiation and periods of flower completion. Whereas, the SF-16013 line produced maximum periods of maturity, plant stature (cm), head diameter (cm), and seed yield (Kg/ha-1) as compared with both check varieties.
Keywords: Genetic Variation; Head Diameter; Seed Yield; Sunflower