Genetic Variability Studies for Economically Important Traits in Sunflower (Helianthus Annuus L.)

Volume 2- Issue 2

Maria Ghias¹, Farooq Ahmad Khan², Sajida Habib¹, Rizwana Qamar¹, Fida Hussain¹, Hafiz Saad Bin Mustafa¹* and Muhammad Aftab¹

Received: April 13, 2018;   Published: April 23, 2018

DOI: 10.32474/CIACR.2018.02.000135

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Abstract

The research was conducted in the research area of Department of Plant Breeding and Genetics (PB&G), University of Agriculture Faisalabad (UAF), Pakistan during spring 2014. The triplicated research trial was laid out following randomized complete block design (RCBD). Fifteen lines of sunflower were studied for genetic variability and association of economic traits with seed yield. The data were recorded on quantitative traits i.e. days to 50% flowering (DFF), plant height (PH), number of leaves per plant (NOL), head diameter (HD), leaf area (LA), filled achene (FA), 100 achene weight (100AW), oil contents (OC), achene yield per plant (AY/P) and qualitative traits i.e. head angle at maturity (HA), achene color(AC). The recorded data were subjected to analysis of variance, correlation and path coefficient analysis. The accessions were highly significant for all traits under study. The accessions A-2.2 showed good performance for most of studied traits. The accession B-3.1 also show better performance followed by A-4.3 and A-7.10. Genotypic correlations are higher than phenotypic correlations. 100AW, NOL, LA and HD had positive and highly significant genotypic correlations with AY/P. Genotypic correlation of AY/P was significantly negative with PH, DFF and oil contents. LA, NOL, 100AWand OC showed direct positive effect on AY/P. DFF, PH, HD and FA had negative direct effect on AY/P.

Keywords: Variability; Correlation; Path coefficient; Quantitative; Quality related traits

Abbrevations: PB&G: Plant Breeding and Genetics; RCBD: Randomized Complete Block Design; PH: Plant Height; NOL: Number of Leaves; HD: Head Diameter; LA: Leaf Area; FA: Filled Achene; AW: Achene Weight; OC: Oil Contents; AY/P: Achene Yield per Plant; HA: Head Angle; AC: Achene Color

Abstract| Introduction| Results and Discussion| Materials and Methods| Quality Determine Traits| Conclusion| References|