Effect of whole seed tubers, cut seed and within row spacing on potato (cv. Sebago) tuber yield
1990
Strange, P.C. (Victorian Dept. of Agriculture and Rural Affairs, Healesville (Australia). Potato Research Station)
In field trials, the mean total tuber yield from planting whole 35-150 g tubers (47.9 t per ha) was significantly higher than from planting Run grade seed. Yields of 35-100 g and 101-150 g tubers were also significantly higher with plantings of whole seed compared with Cut or Run seed. The mean yield of tubers greater than 250 g was significantly higher from planting Run grade seed (12.0 t per ha) than whole 35-150 g tubers. Increasing the within row spacing from 25 to 33.3 or 40 cm significantly increased the yield of tubers greater than 250 g and significantly reduced the yield of 101-150 g tubers. The effect on yield of 35-100 g, 151-250 g tubers and total tuber yield was variable. The mean multiplication rate from plantings of 101-150g whole seed was significantly lower than from plantings of Cut and Run seed but was increased significantly with plantings of whole 35-100 g seed. Increasing the withing row spacing significantly increased the multiplication rate. The mean number of tubers per plant was significantly higher from plantings of whole seed (8.0-9.1) than from Cut or Run grade seed and was significantly by increasing the within row spacings from 25 to 33.3 or 40 cm.
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