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.

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Record number 525471
Title Over den bouw en de periodieke ontwikkeling der bloemknoppen bij Coffea-soorten
Author(s) Meulen, A. van der
Source University. Promotor(en): A.H. Blaauw. - Amsterdam : Noord-Hollandsche - 127
Publication type Dissertation, internally prepared
Publication year 1939
Keyword(s) coffea - koffie - plantkunde - coffee - botany
Categories Stimulant Crops
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.
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