Library Catalogue

Library Catalogue

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    Union Catalogue of Agricultural Libraries in the Netherlands

    The WUR Library Catalogue contains bibliographic data on books and periodicals held by the libraries of Wageningen University and Research Centre and some 15 associated libraries. Holding data are added to each record.

    Subjects covered include Agrotechnology, Food and Food Production, Plant and Animal Sciences, Soil Science, Geo-information, Landscape and Spatial Planning, Water and Climate, Ecosystem Studies, Economics and Society.

    The joint collections of the participating libraries cover a substantial part of the internationally available scientific literature in these disciplines.

    As far as Dutch scientific literature in these fields is concerned, coverage can be considered near 100%, including much of the so-called "grey literature".

    All titles are entered in their original language. Keywords are added to facilitate subject searching.

    The database is updated every day and now contains over 830.000 records.

Record number 104367
Title On the flower formation, the dormancy and the early forcing of strawberries
show extra info.
door H. Jonkers
Author(s) Jonkers, H.
Publisher Wageningen : Veenman
Publication year 1965
Description 59 p., [11] p. pl ill
Notes Proefschrift Wageningen
Ook verschenen als handelsuitgave
Tutors Wellensiek, Prof. Dr. Ir. S.J.
Graduation date 1965-06-23
Dissertation no. 388
Author abstract show abstract
It was investigated whether successful forcing of strawberries could start before 15 January. To study flower initiation the influences of daylength and temperature were traced for early, mid season and late cultivars, particularly the early Deutsch Evern. After leaf area bad reached a minimum 14-18 short-day cycles of 8h of light and 16h of darkness at 18°C initiated flowering of this cv. Probably a short cold period (e.g. 5°C) removed the light inhibition, and a longer period caused accumulation of a substance stimulating elongation and inhibiting flower initiation. After short-day treatment of parent plants the floral stimulus was not transported to daughter plants.

No absolute dormancy was observed. The term relative dormancy was preferred. Fairly prolonged chilling promoted truss elongation, but in autumn fairly brief cold could do this if supplemented with long-day treatment and spraying with gibberellic acid (GA 3 ).

The rate of plant development was mainly influenced by cv., later forcing and warmth. Prolongation of chilling and of day length, and spraying with GA 3 caused no acceleration. Yield was influenced by cv. and the time when forcing commenced. The prospects for early forcing were determined by all measures promoting the efficient use of assimilatory light.

Online full textINTERNET
On paper FORUM ; STACKS ; NN08200,388
FORUM ; STACKS ; NN08202,388
Keyword(s) (cab) fragaria / strawberries / cultivation / cultural methods / botany
Categories Small Fruits
Publication type PhD thesis
Language English
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