ISHS Acta Horticulturae 570: VIII International Symposium on Flowerbulbs
EFFECTS OF PLANTING DATE AND DENSITY ON TUBER PRODUCTION IN SANDERSONIA AURANTIACA |
| Authors: | G.E. Clark, G.K. Burge |
| Keywords: | Sandersonia aurantiaca, tuber, density, secondary tubers |
| Abstract:
The effects of three tuber planting dates (1 September, 1 November and 1 January) and three planting densities (192, 256 and 320 tubers/mē) on tuber production in Sandersonia aurantiaca were assessed. Tubers were grown in a commercial peat:pumice media in polystyrene trays located in an unheated glasshouse and using standard growing methods. Tuber numbers, weights (by grade size - 1-3, 3-5, 5-7, 7-10 and 10+ g) and numbers with secondary tubers were measured. Tuber numbers, weights and the number of secondary tubers decreased with planting date and with increasing planting density. Tubers were mainly in the 10+ g weight grade in the first planting, but were more evenly distributed across all grade sizes in the two later plantings. These results show that planting density can be manipulated along with planting time to maximize tuber numbers in the larger grade sizes and reduce secondary tuber numbers. | |
Download Adobe Acrobat Reader (free software to read PDF files) | |
