Original scientific paper

https://doi.org/10.33128/ag.81.2.3

GENETIC VARIABILITY STUDIES FOR SELECTION OF ELITE GERMPLASM IN SESAME (Sesamum indicum L.)

Sabrin Sultana ; Faculty of Agriculture, Sher-e-Bangla Agricultural University, Dhaka, Bangladesh
Firoz Mahmud ; Faculty of Agriculture, Sher-e-Bangla Agricultural University, Dhaka, Bangladesh
Md Abdur Rahim orcid.org/0000-0001-7687-9347 ; Faculty of Agriculture, Sher-e-Bangla Agricultural University, Dhaka, Bangladesh

Abstract

Sesame (Sesamum indicum L.) is one of the oldest oilseed crops and important for high nutritional quality as well as medicinal value. Fifty diverse sesame genotypes were evaluated to study genetic variability. The results revealed that the genotypes were a significant variation in most of the studied characters. In all cases, the phenotypic variances were much higher than genotypic variances suggests a higher level of the environmental effect on the expression of these characters. The highest genotypic coefficient of variations (GCV) was observed in seed yield per plant while the highest heritability was exhibited by hundred seed weight followed by days to 80% maturity, pods per plant, number of branches per plant and seed yield per plant. The genotypic correlation with seed yield per plant showed a significantly strong positive with days to 50% flowering, plant height and number of pods per plant at both the genotypic and phenotypic level. The path coefficient analysis showed that pods per plant and seeds per pod were the most important contributing traits to seed yield. The 50 sesame genotypes were grouped into five clusters. The highest inter-cluster distance was observed between the cluster III and V while the lowest inter-cluster distance was observed between the cluster III and IV.
Among 50 sesame genotypes G7, G36, G38 and G46 might be suggested for future hybridization program for the improvement of sesame yield.

Keywords

genetic variability; heritability; genetic diversity; yield; sesame; (Sesamum indicum L.)

Hrčak ID:

228860

URI

https://hrcak.srce.hr/228860

Publication date:

28.11.2019.

Article data in other languages: croatian

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