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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 104377
Title Cassaveselectie
show extra info.
door Louis Koch
Author(s) Koch, L.
Publisher Wageningen : Veenman
Publication year 1934
Description 71 p + 17 bijl
Notes Proefschrift Wageningen
Tutors Stok, Prof. J.E. van der
Graduation date 1934-02-16
Dissertation no. 79
Author abstract show abstract
Cassava is indigenous in South America, from where it was introduced to all tropical countries of the old world. It was introduced to Java in 1810; the planted area there and on Madura in 1934 far surpassed that of any other country in the world. Seedling selection has achieved important results only in Indo-China and the Netherlands East Indies.

Many trials on flowering and fertilization were carried out and have shown how to obtain seed of good provenance, how to germinate them and how to establish plantations with them. Thus techniques of selection had improved gradually. The important nutritive qualities of the roots were described, while external

influences on several of them were traced. The choice of parents influenced the behaviour of the seedlings, but this did not imply that a certain quality was transmitted from the parents to their offspring or to many of them. Many correlations demonstrated that generally no genetic objections could be raised to combining of desired qualities.

Hybrids between cassava and Manihot glaziovii gave 30 generally fast growing plants, of which a part could be crossed mutually and with both parents. Some directives were given for the future. The desirability was stressed of importing many cassava varieties and Manihot spp. from South America, for large-scale selection of hybrids in the Netherlands East Indies.

Online full textINTERNET
On paper FORUM ; SPEC.COLL. ; C2124
FORUM ; SPEC.COLL. ; A2096,1934,1
FORUM ; STACKS ; NN08202,79 ; Not for loan
Keyword(s) (cab) manihot esculenta / cassava / cultivation / cultural methods / netherlands east indies
Categories Cassave / Plant Products
Publication type PhD thesis
Language Dutch; Flemish
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