Genetic divergence in northern Benin sorghum (Sorghum bicolor L. Moench) landraces as revealed by agromorphological traits and selection of candidate genotypes

TheScientificWorldJournal
Innocent Dossou-AminonKoffi Akpagana

Abstract

Sorghum [Sorghum bicolor (L.) Moench] is an important staple food crop in northern Benin. In order to assess its diversity in Benin, 142 accessions of landraces collected from Northern Benin were grown in Central Benin and characterised using 10 qualitative and 14 quantitative agromorphological traits. High variability among both qualitative and quantitative traits was observed. Grain yield (0.72-10.57 tons/ha), panicle weight (15-215.95 g), days to 50% flowering (57-200 days), and plant height (153.27-636.5 cm) were among traits that exhibited broader variability. Correlations between quantitative traits were determined. Grain yield for instance exhibited highly positive association with panicle weight (r = 0.901, P = 0.000) and 100 seed weight (r = 0.247, P = 0.000). UPGMA cluster analysis classified the 142 accessions into 89 morphotypes. Based on multivariate analysis, twenty promising sorghum genotypes were selected. Among them, AT41, AT14, and AT29 showed early maturity (57 to 66 days to 50% flowering), high grain yields (4.85 to 7.85 tons/ha), and shorter plant height (153.27 to 180.37 cm). The results obtained will help enhancing sorghum production and diversity and developing new varieties that will be better adapted t...Continue Reading

References

Oct 19, 2004·Genetics·Jeong-Soon KimDavid M Stelly
Mar 16, 2012·Journal of the Science of Food and Agriculture·Chamarthy Venkata RatnavathiJagannath Vishnu Patil

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Citations

May 11, 2021·Frontiers in Plant Science·Srikanth BollamRajeev Gupta

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Methods Mentioned

BETA
PCA

Software Mentioned

SAS
NTSYSpc
Minitab

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