Zbornik - Društvo genetičara Srbije
Zbornik - Društvo genetičara Srbije
Zbornik - Društvo genetičara Srbije
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36 ZBORNIK ABSTRAKATA III KONGRESA GENETIÈARA SRBIJE I-Pos-15<br />
Subotica, 30. novembar - 4. decembar 2004.<br />
VARIJABILNOST OSOBINA CVASTI I LISTA I NASLEÐIVANJE<br />
OBLIKA LISKE SUNCOKRETA U F1 GENERACIJI<br />
S. Terziæ i Jovanka Atlagiæ<br />
Institut za ratarstvo i povrtarstvo, Novi Sad<br />
Zbog izraene varijabilnosti divlje vrste su korišæene za ukrštanja sa cms linijama<br />
gajenog suncokreta. Varijabilnost je utvrðena merenjem preènika cvasti, broja jezièastih<br />
cvetova, duine i širine liske. Podaci su obraðeni putem hijerarhijske klaster analize u<br />
programu SYSTAT 10 i dobijen je dendrogram na osnovu koga je tumaèena<br />
divergentnost ispitivanih populacija. Naèin nasleðivanja je utvrðivan poreðenjem 25<br />
hibridnih kombinacija sa roditeljima. Klaster analizom su razdvojene tri grupe biljaka.<br />
Prvu èine inbred linije gajenog suncokreta. U srednjem delu dendrograma su<br />
jednogodišnje divlje vrste i treæa grupa su višegodišnje divlje vrste. Razlike u srednjim<br />
vrednostima ispitivanih svojstava izmeðu roditelja su bile znaèajne. Najèešæi je bio<br />
intermedijerni tip nasleðivanja zatim parcijalno dominantni i dominantni a u dve hibridne<br />
kombinacije manifestovao se negativni heterozis.<br />
INFLORESCENCE AND LEAF TRAITS VARIABILITY AND INHERITANCE<br />
OF LEAF SHAPE IN F1 GENERATION OF SUNFLOWER<br />
Populations of wild sunflower species were crossed with cms cultivated lines because of<br />
their high variability. Variability was determined by measuring inflorescence diametar,<br />
ray flower number and the leaf length and width. The data was used for hierarchical cluster<br />
analysis in the SYSTAT 10 program and the obtained dendrogram was used to interpret<br />
divergence of used populations. The modes of inheritance were tested by comparing<br />
25 hybrid populations with parents. Cluster analysis divided plants in to three groups.<br />
The first one were inbred lines of cultivated sunflower. In the middle of the cluster tree<br />
were annual wild species and the third group were perennial wild species. The mean<br />
value differences in observed traits between parents were significant. All modes of inheritance<br />
were present in F1 generation. Most of the hybrid combinations in F1 were intermediate<br />
followed by equal number of partially dominant and dominant ones and in two<br />
hybrid combinations negative heterotic effect was scored.