Zbornik - Društvo genetičara Srbije
Zbornik - Društvo genetičara Srbije
Zbornik - Društvo genetičara Srbije
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
130 ZBORNIK ABSTRAKATA III KONGRESA GENETIÈARA SRBIJE IV-Pos-13<br />
Subotica, 30. novembar - 4. decembar 2004.<br />
MEÐUZAVISNOST USLOVA OPRAŠIVANJA, OPLODNJE<br />
I PRINOSA SEMENA SUNCOKRETA<br />
J. Joksimoviæ, J. Atlagiæ, V. Mikliè, N. Dušaniæ i Z. Sakaè<br />
Nauèni institut za ratarstvo i povrtarstvo, Novi Sad<br />
Kod èetiri komercijalno vana hibrida suncokreta (NS-H-45, NS-H-111, NS-H-702 i<br />
Velja) i njihovih roditeljskih komponenti (Ha-74B, Ha-98B, CMS-3-8B, Ha-26B,<br />
RHA-583, RHA-R-Pl-2/1 i RHA-113N) u dve godine su ispitivana sledeæa svojstva:<br />
duina krunice cevastog cveta, sadraj nektara, vitalnost polena, poseta pèela, %<br />
oplodnje i prinos semena. Meðuzavisnost ispitivanih svojstava je utvrðena Path<br />
coeficient analizom.<br />
Prosti koeficijenti korelacije su pokazali da su % oplodnje i poseta oprašivaèa imali<br />
visoko znaèajan pozitivan uticaj na prinos semena. Znaèajan pozitivan efekat je imala<br />
duina krunice na sadraj nektara, a znaèajan negativan efekat je imao sadraj nektara na<br />
vitalnost polena. Najveæi znaèajan direktan efekat na prinos semena je imao procenat<br />
oplodnje, dok je negativan, ali ne i znaèajan efekat imao sadraj nektara na prinos<br />
semena. Koeficijent determinacije je iznosio 0,8071.<br />
INTERDEPENDENCE OF POLINATING CONDITIONS, SEED SET<br />
AND SEED YIELD OF SUNFLOWER<br />
Corolla length, nectar content, pollen viability, honey bee visitation, seed set and seed<br />
yield have been observed on four commercially important sunflower hybrids (NS-H-45,<br />
NS-H-111, NS-H-702 and Velja) and their parental components (Ha-74B, Ha-98B,<br />
CMS-3-8B, Ha-26B, RHA-583, RHA-R-pl-2/1 and RHA-113N) in the course of two<br />
years. Interdependence of tested traits has been determined using path coefficient analysis.<br />
Simple correlation coefficients have shown that seed set and visiting of the pollinators<br />
had highly significant, positive influence on the seed yield. Corolla length had significant<br />
positive effect on the nectar content while the nectar content had negative significant influence<br />
on the pollen viability. Seed set shown the biggest significant direct effect on the<br />
seed yield while the nectar content had negative, but not important effect on the seed<br />
yield. Coefficient of determination was 0.8071.