Physiological basis of yield variation between and within sugarcane varieties grown under contrasting environments. I. Components of sucrose yield at harvest
| MSI99P0370 | |
| Soopramanien, G. C. Julien, M. H. R. | |
| Physiological basis of yield variation between and within sugarcane varieties grown under contrasting environments. I. Components of sucrose yield at harvest | |
| Periodical article | |
| 1980 | |
| Proc. int. Soc. Sug. Cane Technol. | |
| 17: 504-515 | |
| En | |
| En Es | |
| Four commercial varieties of sugarcane were sown at different dates during the planting season under contrasting environments. All were harvested at a fixed age of 68 weeks. Sucrose yield variation at harvest was analyzed in terms of its components; tiller density, tiller dry weight and sucrose concentration (sucrose per cent dry weight). The variation in sucrose yield at harvest was due to wider variations in biological yield as compared to sucrose concentration. Tiller density was found to be a major yield determinant. The effect of site and planting date indicated that warm conditions favored dry matter accumulation while cool conditions increased sucrose accumulation. High sucrose yield at harvest among the varieties was associated with biological yield in a low tillering and high stalk dry weight variety. Varietal differences in sucrose were affected by both site and planting date indicating possible varietal adaptation. However, sucrose concentration characteristic of varieties was not drastically affected by site or planting date. Varietal adaptation was attributed to both tiller density and stalk dry weight. The absence of large differences in stalk weight or sucrose concentration at harvest between tillers of different ages showed homogeneity of the population of surviving tillers and that the late tillers were able to compete with the early ones. Treatment effects on plant morphology as related to the early ones. Treatment effects on plant morphology as related to physiological attributes are discussed i n relation to yield maximization. | |
| SUGARCANE YIELDS VARIETIES SUCROSE PHYSIOLOGY | |
| MAURITIUS | |
| Sugarcane: Physiology | |
| Yield physiology | |
| 1992-02-21 | |
| En | |
| Mauritius Sugar Industry Research Institute | |
| LIB | |
| CAT | |
| BOT |