| Autor: |
Nwankwo, IIM, Eka, MK, Okocha, PI, Nwaigwe, GO |
| Jazyk: |
angličtina |
| Rok vydání: |
2014 |
| Zdroj: |
Nigeria Agricultural Journal; Vol 43 (2012) |
| ISSN: |
0300-368X |
| Popis: |
The study was conducted to evaluate fifteen hybrid yam genotypes at the last stage of Uniform Yield trial (UYT) developed through intra-specific crosses with three landraces of Dioscorea rotundata. The objectives were to determine the variability in tuber dry matter yield of the genotypes, good tuber shape, tuber surface skin texture and tuber morphological variations. The experimental design was a two factorial arrangement in a Randomized Complete Block Design. The results showed high significant (P0.05) year effect was observed for number of tubers, tuber dry matter yield, fresh tuber yield and tuber shape index indicating non- differential performances of the genotypes at different years. The morphological characterization of the yam tubers using yam manual descriptor code character and mathematics of information theory which allows simultaneous analysis of both quantitative and qualitative data indicated that the yam tubers produced by the yam genotypes were distinctively differentiated from each other showing evidence of varietal variation resulting from segregation during cross pollination. Also, the result indicated strong significant (P |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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