Zbornik - Društvo genetičara Srbije
Zbornik - Društvo genetičara Srbije
Zbornik - Društvo genetičara Srbije
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
106 ZBORNIK ABSTRAKATA III KONGRESA GENETIÈARA SRBIJE IV-Usm-17<br />
Subotica, 30. novembar - 4. decembar 2004.<br />
GENETIÈKA DIVERGENTNOST EKSPERIMENTALNIH<br />
HIBRIDA SUNCOKRETA<br />
D. Jovanoviæ, R. Marinkoviæ i D. Škoriæ<br />
Nauèni institut za ratarstvo i povrtarstvo, Novi Sad<br />
Poveæanje prinosa semena je glavni cilj u programima oplemenjivanja suncokreta.<br />
Odreðivanje i poznavanje genetièke varijabilnosti olakšava izbor superiornih hibridnih<br />
kombinacija. Svake godine ulae se veliki napor u pronalaenju najboljih hibrida izmeðu<br />
velikog broja testiranih. Prinos i kvalitet semena analiziran je kod 114 eksperimentalnih<br />
hibrida suncokreta nastalih ukrštanjem inbred linija razlièitog genetièkog porekla.<br />
Kontrole su bili standardni NS hibridi suncokreta (Krajišnik, Velja i NS-H-111). Ocena<br />
hibrida uraðena je na osnovu prinosa i sledeæih kvalitetnih svojstava semena: sadraj ulja<br />
i proteina u semenu, masa 1000 semena i sadraj ljuske. U cilju sagledavanja odnosa<br />
izmeðu eksperimentalnih i standardnih hibrida suncokreta, kao mera sliènosti korišæena<br />
je kvadrirana Mahalanobisova mera odstojanja. Proseèan prinos semena kontrole i<br />
eksperimentalnih hibrida suncokreta varirao je od 3075 do 3712 kgha -1 .<br />
GENETIC DIVERGENCE OF EXPERIMENTAL SUNFLOWER HYBRIDS<br />
Increase in seed yield is the main objective of sunflower breeding programs. Determination<br />
and knowledge of genetic variability facilitate the selection of superior experimental<br />
hybrids. In breeding programs, much effort is expended each year to find superior hybrids<br />
among a large number of tested. Analyzed in the present study was the yield and<br />
quality of seed of 114 experimental sunflower hybrids developed by crossing inbred lines<br />
of different genetic origin. The standard NS hybrids (Krajišnik, Velja and NS-H-111)<br />
were used as controls. The hybrids were evaluated based on seed yield and the<br />
following quality seed traits: oil and protein content in seeds, 1000-seed mass, hull<br />
contents and kernel to hull ratio. Squared Mahalanobis distance was used as the similarity<br />
measure among the standard and experimental sunflowers in the study. Average yield<br />
of kontrl and experimental hybrids of sunflower varied from 3075 to 3712 kgha -1 .
Change language