Library Catalogue

Library Catalogue

  • external user (warningwarning)
  • Log in as
  • About the Catalogue

    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 104159
Title Veredeling van witlof voor het trekken zonder dekgrond
show extra info.
door Jan Arie Huyskes
Author(s) Huyskes, J.A.
Publisher Bennekom : Modern
Publication year 1963
Description 72 p.
Series title Mededeling / Instituut voor de Veredeling van Tuinbouwgewassen (202)
Notes Proefschrift Wageningen
Tutors Doorenbos, Prof. Dr. Ir. J.
Graduation date 1963-11-22
Dissertation no. 357
Author abstract show abstract
Forcing of Belgian endive without covering soil could improve work efficiency. Existing varieties gave loose instead of well closed heads. To improve this, a study was made of factors determining head formation, with covering soil. Roots should be exposed to a certain amount of cold, if they were to form a good head. The later the variety, the more cold was required. Roots to be forced without covering soil needed extra cold. Varieties must be bred for this purpose.

The breeder could use the need for cold as a criterion in selection for earliness and to improve the uniformity of his varieties. The length of the core was negatively correlated with the need for cold. This character was also of use in testing of varieties. The result of early forcing could be improved by previously cooling the roots.

Practical trials on forcing without covering soil and selection for core length confirmed the results of the research.

Online full textINTERNET
On paper FORUM ; STACKS ; NN03852,0202
FORUM ; STACKS ; NN08200,357
FORUM ; STACKS ; NN08202,357
Keyword(s) (cab) cichorium intybus / chicory / cultivation / cultural methods
Categories Leafy Vegetables / Plant Breeding and Genetics (General)
Publication type PhD thesis
Language Dutch; Flemish
There are no comments yet. You can post the first one!
Post a comment

To support researchers to publish their research Open Access, deals have been negotiated with various publishers. Depending on the deal, a discount is provided for the author on the Article Processing Charges that need to be paid by the author to publish an article Open Access. A discount of 100% means that (after approval) the author does not have to pay Article Processing Charges.

For the approval of an Open Access deal for an article, the corresponding author of this article must be affiliated with Wageningen University & Research.

Please log in to use this service. Login as Wageningen University & Research user or guest user in upper right hand corner of this page.