DIGITALNA ARHIVA ŠUMARSKOG LISTA
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ŠUMARSKI LIST 7-10/1975 str. 89     <-- 89 -->        PDF

In thea verage values of the diameter increment the superiority of the late-
flushing form is not clear. On one plot (No. II) it is greater in the late flushing
form, on the other plot (No. Ill) it is smaller than in the early-flushing form (No.
1). In all probability, in the late-flushing form on plot III the diameter increment
had already culminated and at the moment of the investigation it slightly decreased.


The superiority of the late-flushing form over the early-flushing one is also
visible in the development of crowns. This is visible in the length of crowns especially
in their width, or in the size of the horizontal crown projection per one ha
and averagingly per one tree. A particular superiority of the late-flushing form is
visible in the increment production per unit of shaded area. While in the early-
flushing form it amounts only to 1.19 drn´/m´, in the late-flushing form it amounts
to 1.66 and 1.82 dmW.


Observing the stem development (on the basis of 6 analysed stems) a culmination
of current annual diameter and height increments is visible. The first culminates
between the 5th and 10th years and the second one between the 5th and
15th years of the stem age. But, at the same time, it is visible that up to the age
of 45 years (till 1972) new maxima appear, which, according to their magnitude,
are very close to the first ones. Which reveals that the stands have not been tended,
and that the first maximum had set in early thanks to a too closed canopy, and
that the new maxima appeared in dependence on later openings-up of the stands
(naturally or through thinnings during the last years).


In the dynamic of diameter increment during the growing season (1972) it was
noticed that the first culmination of the daily magnitudes in both the forms was
approximately equal.


Later, in June and later, in the late-flushing forms the daily magnitudes of diameter
increment are greater, and on the plotted lines of daily magnitudes there
still culminations by twos, which in the early-flushing form is either absent or
insufficiently expressed. From which it may be inferred that the late-flushing form
surpasses the early-flushing one in diameter increment in the second half of the
growing period.


OBAVIJEST!


Društvo genetičara Jugoslavije — Novi Sad organizira od 7—11.


XI. 1976. g. u Dubrovniku I. Kongres genetičara Jugoslavije.
Uvodne referate podnijeti će istaknuti znanstveni radnici: dr. Lj.
Berberović (Sarajevo), dr. S. Borojević (Novi Sad), dr. B. Garzičić
(Beogad), dr. A. Kaštelan (Zagreb), akademik D. Kanazir (Beograd),
dr. E. Ločniškar (Ljubljana), dr. D. Marinković (Beograd), dr. Lj. Zergollern
(Zagreb) i dr. S. Živković (Beograd).


Za detaljnije obavijesti obratiti se na Organizacijski odbor Kongresa
(predsjednik prof. dr. M. Vidaković, Zagreb, Šumarski fakultet,
pp 178).