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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 104241
Title Morphologische waarnemingen aan rijstplanten, gegroeid bij verschillende lengten van de photoperiode
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door Th. M. Wormer
Author(s) Wormer, T.M.
Publisher 's-Gravenhage : Excelsior
Publication year 1953
Description 154 p ill
Notes Proefschrift Wageningen
Tutors Coolhaas, Prof. Dr. Ir. C.
Graduation date 1953-06-10
Dissertation no. 179
Author abstract show abstract
After a literature study the morphology is described of rice plants grown under short (12 h) and long (18 h) photoperiods. The varieties Nero di Vialone, Kameji, Fortuna, Tjina and Karang Serang were used. Effects of photoperiod on leaf growth were examined. In Nero di Vialone tillering was studied. An active tillering period was distinguished in which buds developed rapidly into tillers; thereafter tillering stopped and some tillers died back. The photoperiod had no effect on tiller number. When tillering continued after floral initiation had occurred in the main culm, the time of flowering of the tillers was irregular. Renewed tillering was found in some widely spaced Kameji plants after floral initiation.

In Nero di Vialone buds at the base of the main culm and of the principal tillers normally developed into tillers, although some buds elongated, and did not grow out. The buds of flowering plants of Nero di Vialone and Kameji were found to contain panicle primordia.

The direct and indirect effects of photoperiod on elongation of stem, particle, sheath of the uppermost (flag)leaf, peduncle and awns are described.

Online full textINTERNET
On paper FORUM ; STACKS ; NN08202,179
Keyword(s) (cab) rice / oryza sativa / botany
Categories Rice
Publication type PhD thesis
Language Dutch; Flemish
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