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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 104448
Title Factors affecting seed set in brussels sprouts, radish and cyclamen
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door A.I.M. El Murabaa
Author(s) Murabaa, A.I.M. El
Publisher Wageningen : Veenman
Publication year 1957
Description IV, 34 p ill
Notes Proefschrift Wageningen  show all notes
Ook verschenen als: Mededelingen / Landbouwhogeschool Wageningen, Nederland, 57(4)
Ook verschenen als handelsuitgave
Tutors Wellensiek, Prof. Dr. Ir. S.J.
Graduation date 1957-06-07
Dissertation no. 226
Author abstract show abstract
If brussels sprouts were, self-fertilized, seed setting increased with age of the flower buds until a maximum some days before buds opened. After that, set decreased rapidly. Warmth shortened the period over which selfing was possible and shortened the period to the opening of the flowers. Most seeds occurred in 7-9 mm long buds.

In crossing, seed set did not decrease just before flowers opened. Warmth shortened the fertilization period. Before flower opening a period (shorter with warmth) existed during which selfing and crossing gave the same results. Crossing after opening of the flowers first increased seed set, later decreased it. This fertilization period was also shortened with warmth.

The inhibition of pollen germination by the style of incompatible plants occurred some days before opening of the buds. With opening it reached a maximum, after that it decreased and disappeared. Application ofα-naphthylacetamide did not overcome incompatibility.

The data on pollination period of radish only showed a few differences from those on brussels sprouts.

Cyclamen had no incompatibility. Fruits always contained seeds. Many peduncles rotted prematurely and many fruits were lost. Emasculation favoured this rotting and in some varieties decreased the number of seeds per fruit. Application of alfa-naphthylacetamide after castration increased seed -set, stimulated elongation of the peduncles and decreased rotting.

Online full textINTERNET
On paper FORUM ; STACKS ; 298E27
FORUM ; STACKS ; NN08202,226
Keyword(s) (cab) brassica oleracea var. gemmifera / brussels sprouts / raphanus sativus / radishes / ornamental plants / seed set / seeds / formation / plant physiology / plant development / fruits / ripening / primulaceae
Categories Stem Vegetables
Publication type PhD thesis
Language English
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