Principal component analysis of early generation sorghum lines for yield-contributing traits and resistance to midge
| Autor: | Issoufou Kapran, Eric Danquah, Malick N. Ba, Vernon Gracen, Oumarou Souleymane, Kwadwo Ofori, Massaoudou Hamidou |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
0106 biological sciences
Germplasm Genetic diversity biology food and beverages Soil Science Staple food 04 agricultural and veterinary sciences Plant Science biology.organism_classification Sorghum 01 natural sciences Inbred strain Agronomy Midge Principal component analysis 040103 agronomy & agriculture Genetics 0401 agriculture forestry and fisheries Cultivar Agronomy and Crop Science 010606 plant biology & botany |
| Zdroj: | Journal of Crop Improvement. 32:757-765 |
| ISSN: | 1542-7536 1542-7528 |
| Popis: | Sorghum (Sorghum bicolor L. Moench) is a staple food crop in Niger. Its production is constrained by sorghum midge (Stenodiplosis sorghicola Coquillett 1898) and by the use of low-yielding, local sorghum varieties. To improve sorghum productivity, farmers need high-yielding and midge-resistant sorghum cultivars. The objective of this research is to evaluate genetic diversity among sorghum inbred lines for yield, yield-contributing traits, and resistance to midge. Two-hundred and eighty-two lines (280 recombinant inbred lines plus two checks) were evaluated at two experimental sites in Niger. An alpha (0.1) lattice design with two replications was used to conduct the trial. Principal component analysis was used to determine the relationship between grain yield and resistance to midge. The first three principal components (PC) accounted for 56.22% of the total genotypic variation. Based on the similarity of traits within and between members of clusters, genotypes were divided into 18 clusters. Genet... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|