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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 104457
Title Over den bouw en de periodieke ontwikkeling der bloemknoppen bij Coffea-soorten
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door A. van der Meulen
Author(s) Meulen, A. van der
Publisher Amsterdam : Noord-Hollandsche
Publication year 1939
Description 127 p + 4 losse bijl
Series title Mededeeling / Laboratorium voor Plantenphysiologisch Onderzoek (60)
Series title Verhandelingen der Koninklijke Nederlandsche Akademie van Wetenschappen. Afdeeling Natuurkunde. Sectie 2 (2, dl. 38)
Notes Proefschrift Wageningen
Tutors Blaauw, Prof. Dr. A.H.
Graduation date 1939-06-16
Dissertation no. 114
Author abstract show abstract
In regions with abundant rainfall coffee shows a flowering rhythm quite different from that in regions with distinct dry and wet periods. Some species and varieties flower only on the first-year wood, other ones also on the older wood. In some flowering lasts much of the year, other bloom heavily for only a short time. To find whether these differences already appear in the origin of the flowers, descriptions were made of the morphology and development of the branch system, the inflorescence and the flower with Coffea canephora P. var. robusta Linden and C. macrochlamys K. Sch. var. excelsa A. Chev., and besides of the structure of the inflorescence of C. arabica L. The structure of the inflorescence of Coffea L. was shown to derive from the structure of the vegetative parts of the plant. Eight stages could be distinguished in the development of the vegetative points of third degree into flowers.

Between the periodicity of floral initiation on primary side-branches of some Coffea L. spp. and the periodicity of wet and dry periods, different relations were found for different species and varieties, but in the second half of a dry period flowers never arose. Constantly wet regions gave robust plants with few flowers and so smaller yields than regions with periodic drought giving thinner plants with many flowers. Much useful literature on flowering was reviewed.

Online full textINTERNET
On paper FORUM ; STACKS ; 272D21
FORUM ; STACKS ; NN00276,0060
FORUM ; STACKS ; NN03107,38-02
FORUM ; STACKS ; NN08202,114
Keyword(s) (cab) coffea / coffee / botany
Categories Stimulant Crops
Publication type PhD thesis
Language Dutch; Flemish
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