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 525434
Title De groei van jonge Hevea-oculaties = The growth of young Hevea buddings
Author(s) Ostendorf, F.W.
Source University. Promotor(en): J.E. van der Stok. - s.l. : S.n. - 94
Publication type Dissertation, internally prepared
Publication year 1933
Keyword(s) oculeren - hevea - groeistadia - gewassen, groeifasen - hevea brasiliensis - cultuurmethoden - nederlands indië - budding - growth stages - crop growth stage - cultural methods - netherlands east indies
Categories Exudate Producing Crops
Abstract Results were presented of studies on the initial growth of Hevea buddings, at the Proefstation West-Java, Buitenzorg (now Bogor). The time elapsing between cutting off the stock above the union and sprouting of the implanted bud was a clonal character; so also was the angle between the young sprout and the stock. The formation was described of successive shoots or leaf storeys. The characteristic periodicity shown by most buddings was not due to an inherent tendency of the plant towards interrupted elongation growth but depended on environmental conditions, the girth of the stock, and the growth vigour of the 62
clone. As these conditions became less favourable, there was a gradual transition from completely aperiodic leaf formation with a constant rate of elongation to periodic shoot formation with increasingly long resting periods between the formation of successive shoots. This periodicity of shoot formation, and the decreasing size of successive leaves within a shoot resulting in its typical umbrella- like shape, were explained as the effect of an interaction between a fairly even moisture supply to the growing point and changing water consumption by the developing leaves.
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