Field performance of potato microtubers as propagation material |
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Authors: | A J Haverkort M Van De Waart J Marinus |
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Institution: | (1) Centre for Agrobiological Research (CABO-DLO), P.O. Box 14, 6700 AA Wageningen, the Netherlands |
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Abstract: | Summary In five field trials with the cultivars Gloria (early), Bintje (mid-early) Désirée (mid-late) and Morene (late), crops grown
from conventional 28–35 or 35–45 mm seed were compared with crops grown from microtubers, of various sizes and from various
sources, that had been producedin vitro. The following means to quicken initial crop development from the micropropagated material were tested: large microtubers,
plastic soil cover, and transplanting of plantlets grown from microtubers pre-planted in a glasshouse. Crops grown from microtubers
weighing less than half a gram yielded much less than crops grown from conventional seed crops but their yields were increased
by each treatment. With the later-maturing cultivars, which generally produce few tubers per plant, the yields within seed
grades from plants grown from transplanted microtuber plants were comparable with those of conventional crops. Reasons are
given, why direct planting of microtubers, with or without plastic foil, is not a practical option. |
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Keywords: | Solanum tuberosum L transplanting harvest index size distribution |
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