Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 22570
Title Morphological changes in tuber buds during dormancy and initial sprout growth of seed potatoes.
Author(s) Ittersum, M.K. van; Aben, F.C.B.; Keijzer, C.J.
Source Potato Research 35 (1992)3. - ISSN 0014-3065 - p. 249 - 260.
Department(s) Laboratory of Plant Cell Biology
Laboratory of Field Crops and Grassland Science
Publication type Refereed Article in a scientific journal
Publication year 1992
Abstract Potato tuber dormancy is usually defined as lasting from tuber initiation until a sprout of 2 mm long has been formed under storage conditions optimal for sprouting. We tried to find out whether there is a period during which buds of seed tubers do not grow and whether different batches of seed take the same time to grow sprouts 2 mm long.

We measured changes in number of leaf primordia and length of tuber buds of cvs Diamant and Désirée over two years. After early haulm pulling, buds did not grow for at least 60 days (‘Diamant’) or 95 days (‘Désirée’).

Buds in both cultivars and two tuber weights of ‘Diamant’ took about 20 days from the estimated onset of sprouting to grow 2 mm long. We question whether this period is always similar and thus whether the moment sprouts 2 mm long have formed is a good criterion for the end of dormancy.
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