The effects of environment and time of harvest at early stages of selection in sugar cane. 1. Selection in plant cane crop
| MSI99P0274 | |
| Julien, M. H. R. Peerun, Z. Domaingue, R. | |
| The effects of environment and time of harvest at early stages of selection in sugar cane. 1. Selection in plant cane crop | |
| Periodical article | |
| 1983 | |
| Proc. int. Soc. Sug. Cane Technol. | |
| 18: 698-712 | |
| EN | |
| En Fr Es | |
| The effects of three dates of harvest at an early stage of selection in a plant crop of sugar cane were studied in three contrasting environments. Brix, weight and cane number were measured in three families each represented by 72 genotypes. Selection pressure was applied at two levels with respect to four standards of different maturity characteristics. Cane number and weight per stool were found to be highly variable, while brix proved to be the most reliable criterion for selection. It was found that families as a whole and their genotypes displayed specific adaptation to time of harvest but not to environment for brix. Selection rates for this character depended on the standard, the family and environment. These r ates varied when different standards were used at different harvest dates, emphasizing the need for a critical choice of standard. Further, differential selection rates for the families were observed at different harvest dates but not in different environments. The relative performance of genotypes at two harvest dates depended on the standard used and the selection pressure. It is shown that a combination of sampling dates, different standards, and different selection pressure can allow early selection of genotypes with different maturity characteristics. | |
| SUGARCANE SELECTION SELECTION METHODS VARIETIES BREEDING | |
| MAURITIUS | |
| Cane breeding and genetic improvement | |
| Selection | |
| 1992-02-18 | |
| En | |
| Mauritius Sugar Industry Research Institute | |
| LIB | |
| CAT | |
| PB |