Variation of Growth and Disease Characters Between Clones of Potato (<Emphasis Type="Italic">Solanum tuberosum</Emphasis> L.) |
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| Authors: | S L Nielsen H Bång K Kotkas K Kristensen J P Palohuhta V Rosenberg K Tolstrup |
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| Institution: | 1.Faculty of Agricultural Sciences, Department of Integrated Pest Management,University of Aarhus,Slagelse,Denmark;2.IVK Potatis AB,Ume?,Sweden;3.Estonian Research Institute of Agriculture,Plant Biotechnological Research Centre EVIKA,Saku,Estonia;4.Faculty of Agricultural Sciences, Department of Genetics and Biotechnology,University of Aarhus,Aarhus,Denmark;5.The Seed Potato Center,Tyrnava,Finland;6.Faculty of Agricultural Sciences, former Danish Potato Breeding Foundation,University of Aarhus,Aarhus,Denmark |
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| Abstract: | The occurrence and magnitude of variation of selected characters in clones derived from meristem tips of four potato cultivars
in field trials in three countries was assessed. Recorded were: the number of plants per plot; maturity of plants; skin and
flesh colour; tuber deformity; time of emergence; flowering; number of stems and tubers per plant; tuber size, yield and dry
matter percentage; and the occurrence of common scab. Far more significant differences between clones than could be expected
by chance were found for the last eight characters. Most of the significant differences for number of stems per plant, number
of tubers, yield and tuber size distribution were found in six clones of three cultivars and were repeated at different locations
and in different years. It is concluded that significant clone differences exist and are repeated at independent locations
over the years. |
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