Variation and inheritance of leaf stripping ability in sugar cane in three contrasting environments
| MSI01P3589 | |
| Badaloo, G. H. Ramdoyal, K. Mundil, D. | |
| Variation and inheritance of leaf stripping ability in sugar cane in three contrasting environments | |
| 24th ISSCT Congress, Brisbane, September 01 | |
| periodical article | |
| 2001 | |
| Proc. int. Soc. Sug. Cane Technol. | |
| 24(2): 500-505 | |
| En | |
| En Fr Es | |
| Three trials of 20, 20 and 17 full-sib families were established in three contrasting environments, namely a subhumid, irrigated, a humid, and a superhumid one, to study the variation and inheritance of leaf stripping ability. In general, parents with self and/or easy stripping ability produced higher frequency of progeny towards the self and easy stripping tail of the distribution. There were highly significant differences between the full-sib families at all sites. Estimates of narrow sense heritability were generally low in the subhumid environment (0.16) to moderately high in the humid (0.70) and superhumid (0.64) environments, demonstrating that breeding for the trait should be possible with an appropriate strategy. Combined analysis of variance revealed the presence of significant additive and non-additive genetic variation. Family x environment interaction was significant for the 20 families replicated in the superhumid and subhumid irrigated sites, with a highly pronounced main effect of environment. However, the family variance was nearly twice that of the interaction variance. The practical implications of these findings are discussed in relation to the breeding program for self-stripping varieties. | |
| sugarcane Breeding Leaf stripping heritability interaction | |
| Mauritius | |
| Sugarcane | |
| Plant breeding | |
| 2001-09-25 | |
| En | |
| PB |