Combining fibre with other quantitative traits in commercial x Saccharum spontaneum crosses
| MSI03P3926 | |
| Ramdoyal, K. Badaloo, M. G. H. | |
| Combining fibre with other quantitative traits in commercial x Saccharum spontaneum crosses | |
| 7th ISSCT Breeding and Germplasm workshop, 5-9 May 2003: Abstract book | |
| Conference paper | |
| 2003 | |
| p. 16 | |
| ISSCT | |
| En | |
| Quantitative inheritance of agronomic traits was studied in fourteen Commercial x S.spontaneum families to investigate the possibility of selecting parents that combine fibre with other commercial attributes. This study is in line with the new strategic plan of the Mauritian Sugar Industry to increase bagasse production in cogeneration process as an added value product. Frequency distributions for agro-morphological and quality characters tended towards normality. There were highly significant genetic differences between full-sib families and heritability estimates varied from low to moderately low for dry matter percent cane, fibre percent cane and stalk number to moderately high for stalk diameter and high for pol percent cane. Phenotypic correlation coefficients established among the agro-morphological and quality characters on both a family and within family basis indicated associations that were close to the parental source and points to the difficulty in increasing sucrose and fibre content concurrently. However, within family correlations indicated that there was the possibility of introgressing desirable characters from the wild S. spontaneum genome into commercial varieties. The expected response to selection indicates good scope to widen the genetic base of sugar cane varieties. Bivariate cross prediction was shown to be robust in the identification of the best crosses for the pair-wise combination of pol and fibre on both a fresh and dry matter basis, stalk number and dry matter percent cane, but not for stalk number and diameter and stalk diameter and fibre | |
| Sugarcane fibre content heritability INTERSPECIFIC HYBRIDIZATION genetic base cross prediction Saccharum Saccharum spontaneum | |
| Mauritius | |
| Cane breeding and genetics | |
| Breeding for fibre content | |
| 2003-06-17 | |
| LISt | |
| PB |