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 104167
Title De invloed van temperatuur en licht op de groei en ontwikkeling van andijvie
show extra info.
door J. Heijting
Author(s) Heijting, J.
Publisher Wageningen : De Goede
Publication year 1964
Description 74 p.
Series title Publicatie / Laboratorium voor Tuinbouwplantenteelt (250)
Notes Proefschrift Wageningen
Tutors Wellensiek, Prof. Dr. Ir. S.J.
Graduation date 1964-07-01
Dissertation no. 372
Author abstract show abstract
The two main factors for bolting and flowering of endive were temperature and light; their influence on both growth and development was investigated.

From experiments with successive dates of sowing, different raising temperatures and different growing conditions the following facts emerged: with increasing raising temperature, crop weight increased by delayed bolting; extra light during the seedling stage, or short day during the seedling stage, delayed bolting, but did not always increase crop weight; after the raising period, high temperature stimulated bolting and increased crop weight.

Low temperature (5°C) during germination or in the seedling stage promoted bolting and flowering; in short days, vernalization accelerated bolting considerably; in long days, it depended on the age of the plant at the time of vernalization. Interruption of seed vernalization by normal temperature delayed bolting. The effect of seed vernalization, if applied for a limited period, could be nullified by high temperature (35°C) immediately after vernalization.

In unvernalized plants grown at 35°C bolting was accelerated. Increasing day length promoted early bolting. The only flower-promoting action of short days had been observed when short days preceded vernalization.

Low light intensity promoted or inhibited bolting, according to other factors.

Online full textINTERNET
On paper FORUM ; STACKS ; NN08200,372
FORUM ; STACKS ; NN08202,372
FORUM ; STACKS ; NN00319,0250
Keyword(s) (cab) cichorium endivia / endives / light / photoperiodism / temperature / heat / growth / plant development
Categories Vegetables
Publication type PhD thesis
Language Dutch; Flemish
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