Potassium metabisulphite as a substitute for sulphur dioxide in preservative solution used during crossing of sugar cane
| MSI99P0155 | |
| Ramdoyal, K. Domaingue, R. | |
| Potassium metabisulphite as a substitute for sulphur dioxide in preservative solution used during crossing of sugar cane | |
| Periodical article | |
| 1990 | |
| Proc. int. Soc. Sug. Cane Technol. | |
| 20: 851-859 | |
| En | |
| En Fr Es | |
| Investigations were carried out on the possibility of using potassium pyrosulphite (KMS) as a substitute for gaseous sulphur dioxide in preservative solutions used during sugar cane breeding. At a working concentration of 100 ppm Sulphur dioxide, no differences in either mortality rate or opening of florets was evident when either KMS or gaseous sulphur dioxide was used. Under unfavourable crossing conditions due to low temperatures, there was a tendency for higher concentrations of KMS to increase survival of excised flowering stalks and to promote opening of spikelets. The effect of KMS on seed setting needs further investigation. Iodometric titrations showed that a given concentration of sulphur dioxide in aqueous medium, at least for the KMS product under investigation in Mauritius. However KMS decomposes readily to release sulphur dioxide so this ratio will vary with product and over time. The strength of sulphur dioxide in solution declined rapidly following dissolution of either the gas or KMS. However, the use of a protective paraffin oil layer appreciably reduced loss of sulphur dioxide from solution, probably to a greater extent when KMS was used as the source of sulphur dioxide. | |
| SUGARCANE METHODOLOGY PRESERVATION BREEDING CROSSING | |
| MAURITIUS | |
| Cane breeding and genetic improvement | |
| Breeding: crossing | |
| 1992-02-11 | |
| En | |
| Mauritius Sugar Industry Research Institute | |
| LIB | |
| CAT | |
| 1 | |
| PB |