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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 104259
Title Tuinbouwkundige toepassingen van gibberellazuur
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door A. Varga
Author(s) Varga, A.
Publisher Wageningen : Veenman
Publication year 1963
Description 84 p
Series title Publicatie / Stichting Fonds Landbouw Export Bureau 1916/1918 (41)
Notes Proefschrift Wageningen
Tutors Wellensiek, Prof. Dr. Ir. S.J.
Graduation date 1963-11-13
Dissertation no. 356
Author abstract show abstract
The initiation of new flower buds in Pelargonium zonale Ait. was strongly inhibited by GA 3 . The duration of development of the initiated umbel was diminished and the stalk of the umbel elongated. The winter dormancy of the flower buds of Convallaria majalis started earlier with a dry or warm cultivation and by GA 3 during the growth or during storage. GA 3 was not able to break winter dormancy of the buds without previous cold treatment.

After castration and GA 3 treatment of some varieties of pears many treated flowers set fruit parthenocarpically. After night frosts in 1960 and 1962 a considerable fruit set was obtained from severely frosted flowers after GA 3 treatment of pears. Thus night frost damage to pears could be controlled with GA 3 .

The induction of parthenocarpy in apples with GA 3 did not succeed, neither after castration or after night frost. A possible improvement is the use of other gibberellins, especially GA 4 . The presence of seeds in the fruit proved necessary until the June drop. Undesired effects of GA 3 may be a decrease in the number of flower buds or abnormal fruit shape.

The growth of the heads of unchilled roots of Belgian chicory was strongly stimulated by GA 3 . GA 3 treatment increased the number of male flowers in cucumber, favoured the bolting of spinach, hastened the ripening of tomato fruits, but did not favour the growth of the fruits of Solanum melongena and Capsicum annuum.

Online full textINTERNET
On paper FORUM ; STACKS ; NN08200,356
FORUM ; STACKS ; NN08202,356
FORUM ; STACKS ; NN00656,41
Keyword(s) (cab) horticulture / gibberellins / hormones
Categories Crops (General)
Publication type PhD thesis
Language Dutch; Flemish
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