Foliar symptoms of silicon deficiency in the sugar cane plant
| MSI99P0573 | |
| Wong You Cheong, Y. Heitz, A. Deville, J. | |
| Foliar symptoms of silicon deficiency in the sugar cane plant | |
| Periodical article | |
| 1972 | |
| Proc. int. Soc. Sug. Cane Technol. | |
| 14: 766-776 | |
| En | |
| En | |
| The object of this work is to try to reproduce foliar symptoms of Si deficiency (leaf freckling) on sugarcane growing in nutrient solution. Some of the factors influencing the appearance of freckling, as well as the nature of Si deposits in leaf tissue, were also studied. Leaf freckling developed after 75 days on Si-deficient cane receiving direct sunlight; no symptoms ever appeared on Si-deficient cane kept under a Perspex or a glass roof, as in the greenhouse, indicating that UV radiation might be necessary for the appearance of the symptoms. Deficiency symptoms always developed on the physically upper surface and could, at an early stage, be made to disappear by treating the cane with soluble Si. Si was deposited mainly as insoluble Si in dumb-bell shaped cells, trichomes, hairs and stomata. As necrosis more frequently occurred on the outermose cells such as trichomes, bulliform cells and stomata, it would seem that leaf freckling was associated with the cells in which Si was deposited. One function of Si may be to reduce excessive leaf transpiration, but the latter would not be responsible for leaf freckling. | |
| SUGARCANE SILICON NUTRIENT DEFICIENCIES FOLIAR DIAGNOSIS PLANT NUTRITION | |
| MAURITIUS | |
| Sugarcane: Soils and Plant nutrition | |
| Cane growth and nutrition | |
| 1992-03-03 | |
| En | |
| Mauritius Sugar Industry Research Institute | |
| LIB | |
| CAT | |
| CHEM |