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Natura Montenegrina, 6, 2007 |
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CONTRIBUTION
TO THE KNOWLEDGE OF THE FLOWERING PHENOLOGY AND SEX EXPRESSION IN Acer
monspessulanum L. FROM MONTENEGRO Rajko
TRIPIĆ 1 1
Republic Institute for the Protection of Nature of Montenegro, Podgorica,
Trg vojvode Bećir bega Osmanagića 16, Podgorica, Crna Gora |
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Key
words: Flowering
phenology, sex
expression, Acer monspessulanum
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SYNOPSIS
The paper contains results of research of flowering phenology and sex expression of flowers, inflorescences and individual trees of Acer monspessulanum consecutively for seven years on 40 marked trees from 2 local populations near Nikšić. The flowers were morphologically false bisexually and functionally unisexual (male or female). The male flowers had very small, rudimentary pistil (unfunctional) with normally developed stamens (yellow with functional anthers on long filaments). The female flowers had normally developed pistil and unripe stamens (the anthers are green, hard and unfunctional, and filaments are very short).
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Ključne riječi: Fenologija
cvjetanja, polna
ekspresija, Acer monspessulanum
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SINOPSIS
U radu su dati rezultati istraživanja fenologije cvjetanja i polne ekspresije cvjetova, cvati i individualnih stabala Acer monspessulanum uzastopnotokom sedam godina na 40 markiranih stabala iz dvije lokalne populacije blizu Nikšića. Cvjetovi su bili morfološki lažno dvopolni a funkcionalno jednopolni (muški ili ženski). Muški cvjetovi su imali vrlo mali, rudimentarni tučak (nefunkcionalan) sa normalno razvijenim prašnicima (žuti sa funkcionalnim anterama na dugačkim filamentima), a ženski cvjetovi su imali dobro razvijen tučak i nezrele prašnike (sa zelenim, tvrdim i nefunkcionalnim anterama na vrlo kratkim filamentima). |