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Abstract

Noug (Guizotia abyssinica) is an outcrossing oilseed crop that serves as a source of edible oil and other nutrients although its seed yield is generally low. The analysis of agro-morphological traits in relation to seed and oil yields is important for improving the productivity of this crop. The present study aimed at assessing the variation and heritability of quantitative (10) and qualitative (6) traits in noug based on 60 landrace accessions collected from wide geographic area in Ethiopia. The field trial was conducted at two sites in Ethiopia using a square lattice design. The analysis of variance revealed significant variation (p < 0.05) among these accessions. The highest broad-sense heritability (H-2) was recorded for days to 10% flowering (DTF10; 85.4%), whereas number of capitula per plant (NCPP) and number of seeds per capitulum (NSPC) showed medium heritability (H-2 = 38.5% and 31.6%, respectively). NCPP and NSPC showed a highly significant (p < 0.01) positive and negative genotypic correlation with days to flowering, respectively. These three traits showed very low genotypic coefficient of variation (

Keywords

cluster analysis; Guizotia abyssinica; heritability; qualitative traits; quantitative traits; seed yield

Published in

Agronomy
2021, volume: 11, number: 8, article number: 1479

SLU Authors

Global goals (SDG)

SDG2 Zero hunger

UKÄ Subject classification

Genetics and Breeding in Agricultural Sciences
Agricultural Science

Publication identifier

  • DOI: https://doi.org/10.3390/agronomy11081479

Permanent link to this page (URI)

https://res.slu.se/id/publ/112820