članak: 1 od 1  
Genetika
2010, vol. 42, br. 3, str. 455-464
jezik rada: engleski
izvorni naučni članak
doi:10.2298/GENSR1003455D
Parametri u oceni odgovarajuće veličine F2 populacije u konvencionalnim programima oplemenjivanja kukuruza (Zea mays L.)
Delić Nenad, Pavlov Jovan, Babić Vojka, Šurlan-Momirović Gordana, Živanović Tomislav
Institut za kukuruz 'Zemun polje', Zemun

e-adresa: ndelic@mrizp.rs

Sažetak

U radu su ispitivane razlike između četiri veličine F2 populacije od 100, 200, 300 i 500 biljaka na bazi test-ukrštanja, za prinos zrna, prema prosečnim vrednostima populacija, genetičkim i fenotipskim varijansama koeficijentima genetičke i fenotipske varijacije i vrednostima heritabilnosti u širem smislu. Vrednosti genetičke varijanse, nisu se značajno razlikovale između različitih veličina populacije u svim mogućim upoređenjima, što važi i za upoređenja dobijenih vrednosti fenotipske varijanse. Takođe, vrednosti heritabilnosti u širem smislu (67.8% do 69%) nisu značajno varirale sa promenom veličine F2 populacije. Genetička varijabilnost ispitivanih potomstava, kao glavni preduslov uspešne selekcije, je bila na zadovoljavajućem nivou u svim veličinama populacije.

Ključne reči

genetic variability; F2 population; heritability; maize; recombination; yield

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