Zbornik - Društvo genetičara Srbije
Zbornik - Društvo genetičara Srbije
Zbornik - Društvo genetičara Srbije
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IV-Pos-8 ZBORNIK ABSTRAKATA III KONGRESA GENETIÈARA SRBIJE 125<br />
Subotica, 30. novembar - 4. decembar 2004.<br />
OCENA POGODNOSTI MONOGERMNIH LINIJA ŠEÆERNE REPE ZA<br />
STVARANJE HIBRIDA TOLERANTNIH PREMA RIZOMANIJI<br />
N. Èaèiæ, L. Kovaèev, Sneana Mezei i Nevena Nagl<br />
Nauèni institut za ratarstvo i povrtarstvo, Novi Sad<br />
Prvi podaci o prisustvu rizomanije u našoj zemlji datiraju iz 1971. godine i od tog<br />
vremena ovo obolenje se raširilo na èitavo proizvodno podruèje šeæerne repe. Kao<br />
posledica širenja ovog, veoma destruktivnog, obolenja u proizvodnju su se uvodile sorte<br />
šeæerne repe tolerantne prema rizomanija, a u poslednje dve godine gaje se skoro<br />
stoprocentno tolerantne sorte. Imajuæi ovu èinjenicu u vidu 2002. godine izvršili smo<br />
ukrštanje 250 monogemnih cms linija, koje ne poseduju gene tolerantnosti prema<br />
rizomaniji, sa multigermnom diplidnom populacijom koja poseduje rizor gen<br />
tolerantnosti prema ovom obolenju. Tokom 2003. godine na zemljištu zaraenom<br />
rizomanijom, izvršena je provera proizvodnih svojstava dobijenih hibridnih kombinacija.<br />
Za ispitivanja u 2004. godini odabrano je 40 hibridnih kombinacija stavljajuæi pri tome<br />
naglasak na sadraj šeæera i tehnološke karakteristike. U monogermne linije koje pokau<br />
dobre kombinacione sposobnosti za najvanija proizvodna svojstva uneæe se holly<br />
odnosno wb gen otpornosti, a potom æe se ove linije koristiti za stvaranje hibrida šeæerne<br />
repe visoko tolerantnih prema rizomaniji i dobrih proizvodnih svojstava.<br />
EVALUATION OF SUITABILITY OF MONOGERM SUGAR BEET LINES<br />
FOR THE DEVELOPMENT OF HYBRIDS TOLERANT TO RHIZOMANIA<br />
The first reports of rhizomania in our country date back to 1971. Since then, the disease<br />
has spread to all sugar beet-growing areas of the country. In response to the spread of this<br />
highly destructive disease, sugar beet cultivars tolerant of rhizomania were introduced increasingly<br />
into commercial production, and in the last two years virtually all sugar beet<br />
cultivars grown commercially have tolerance to rhizomania. With this in mind, in 2002<br />
we crossed 250 monogerm cms lines that have no genes for tolerance to rhizomania with<br />
a multigerm diploid population that has the Rizor gene for tolerance to this disease. During<br />
2003, hybrid combinations obtained in this manner were evaluated for their production<br />
characteristics on rhizomania- infected soil. Forty of the combinations were then<br />
chosen for testing in 2004, with emphasis on sugar content and technological characteristics.<br />
Monogerm lines with good combining abilities for the most important production<br />
characteristics will be identified and the Holly and WB genes for rhizomania resistance<br />
will be incorporated into them. These lines will then be used to develop sugar beet hybrids<br />
that have high tolerance towards rhizomania and good production characteristics.