Evaluation of growth characteristics as possible criteria for the selection of drought resistance ability of sugar cane varieties
| MSI99P1599 | |
| Travailleur, J. P. C. | |
| University of Mauritius, School of Agriculture, Réduit | |
| Evaluation of growth characteristics as possible criteria for the selection of drought resistance ability of sugar cane varieties | |
| Project, BSc (Hons), Crop Science and Production | |
| Thesis | |
| 1994 | |
| 129 p., 37 tbls., 12 figs., 11 pl. | |
| En | |
| En | |
| The aim of this study was to evaluate two growth characteristics, namely stem elongation and leaf extension growth, as possible criteria for screening drought resistant sugar cane varieties. The effect of water stress on tiller number has also been investigated. Four commercial varieties of known response to drought and tow families (parents and offsprings) bred for specific adaption, were used as materials for this study. The proposed methodology for assessing stem elongation and leaf extension was found to be fairly precise and accurate. The study showed that both stem elongation and leaf extension were sensitive to water stress. Growth data obtained from these characters established the existance of different mechanism for drought resistance (drought avoidance and drought tolerance). Furthermore a variety X treatment (water stress) interaction has been found for stem elongation and leaf extension growth. The experiment also revealed that the present classification of parent varieties as being adapted to extreme agroclimatic conditions is not adequate. Water stress has been found to cause consistent reductions in tiller number and a variety X treatment interaction was also found for this character. | |
| SUGARCANE VARIETIES DROUGHT RESISTANCE BREEDING | |
| MAURITIUS | |
| Cane breeding and genetic improvement | |
| 1994-08-02 | |
| En | |
| LIB | |
| CAT | |
| EXTN |