Summary
The behaviour of minitubers in five weight classes, having mid-point values between 0.19 and 3.00 g, was studied during sprouting and emergence under controlled conditions. Lighter tubers took longer to produce sprouts of 2 mm, and their sprouts grew more slowly between 2 and 4 mm and 4 and 6 mm. As sprouts lengthened their rate of growth increased. The influence of tuber weight was less for heavier tubers and also decreased as the sprouts grew longer. When tubers with sprouts of the same length were planted in pots, sprouts from lighter tubers took longer to emerge. Emergence was later and differences between weight classes were larger when tubers were planted deeper (6 or 9 cm) or when they had shorter sprouts at planting (2 or 4 mm). At emergence, plants from lighter tubers had thinner stems and lower stem and root weights, but higher stem weights proportional to tuber weights and higher shoot:root ratios.
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References
Allen, E.J., P.J. O'Brien & D. Firman, 1992. An evaluation of small seed for ware-potato production.Journal of Agricultural Science, Cambridge 118: 185–193.
Davies, H.V., 1984. Mother tuber reserves as factors limiting potato sprout growth.Potato Research 27: 209–218.
Emilsson, B., 1949. Studies on the rest period and dormant period in the potato tuber.Acta Agriculturae Suecana 3: 189–284.
Firman, D.M., P.J. O'Brien & E.J. Allen, 1992. Predicting the emergence of potato sprouts.Journal of Agricultural Science, Cambridge 118: 55–61.
Headford, D.W.R., 1962. Sprout development and subsequent plant growth.European Potato Journal 5: 14–22.
Ittersum, M.K. van, F.C.B. Aben & C.J. Keijzer, 1992. Morphological changes in tuber buds during dormancy and initial sprout growth of seed potatoes.Potato Research 35: 249–260.
Ittersum, M.K. van & P.C. Struik, 1992. Relation between stolon and tuber characteristics and the duration of tuber dormancy in potato.Netherlands Journal of Agricultural Science 40: 159–172.
Krijthe, N., 1962. Observations on the sprouting of seed potatoes.European Potato Journal 5: 316–333.
Lommen, W.J.M., 1993. Post-harvest characteristics of potato minitubers with different fresh weights and from different harvests. I. Dry-matter concentration and dormancy.Potato Research 36: 265–272.
Moorby, J., 1967. Inter-stem and inter-tuber competition in potatoes.European Potato Journal 10: 189–205.
Morris, D.A., 1966. Intersprout competition in the potato I. Effect of tuber size, sprout number and temperature on sprout growth during storage.European Potato Journal 9: 69–85.
Sadler, E.M., 1961. Factors influencing the development of sprouts on the potato. PhD thesis, University of Nottingham, 109 p.
Struik, P.C. & W.J.M. Lommen, 1990. Production, storage and use of micro- and minitubers. Proceedings of the 11th Triennial Conference of the European Association for Potato Research, Edinburgh, UK, pp. 122–133.
Wiersema, S.G. & R. Cabello, 1986. Comparative performance of different-sized seed tubers derived from true potato seed.American Potato Journal 63: 241–249.
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Lommen, W.J.M. Effect of weight of potato minitubers on sprout growth, emergence and plant characteristics at emergence. Potato Res 37, 315–322 (1994). https://doi.org/10.1007/BF02360524
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DOI: https://doi.org/10.1007/BF02360524