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.

    We have a manual that explains all the features 

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    We will mail you new results for this query: keywords==tulip
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CATT tegen tulpengalmijt
Vreeburg, Peter - \ 2015
tulip - mite - tulp - mijt
A cold treatment promotes both sprouting and sink strength of lily bulblets
Klerk, G.J.M. de - \ 2009
Propagation of ornamental plants 9 (2009)2. - ISSN 1311-9109 - p. 102 - 106.
regenerated in-vitro - low-temperature - dormancy development - abscisic-acid - invitro - pathways - growth - potato - tulip - induction
Lily bulblets produced in tissue culture at 20 or 25ºC are cold-treated before planting to break dormancy. Bulblets produced in tissue culture at a relatively low temperature (15ºC), though, are nondormant and sprout without a preceding cold treatment. Leaves generated after planting by noncold-treated 15ºC bulblets, were relatively small and as a consequence bulblet growth after planting was limited. This was also observed for the few 20 and 25ºC bulblets that did sprout without a cold treatment. Sink-strength of bulblets was assessed as bulblet dry-weight (DW) gain per mg leaf DW. Noncold-treated bulblets had far less sink-strength than cold-treated ones. Thus, a second cause of the little growth of noncold-treated bulblets was their small sink-strength. The optimal temperatures to break dormancy and to promote sink strength were 9 and 2ºC, respectively. It is concluded that a cold treatment not only breaks dormancy but also enhances sink strength, and that these are unrelated processes.
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