Corn reddening: Half a century later

Abstract

In the first decade of the 21st century, corn reddening occurred on a larger scale not just in Banat, but also in some other regions of Serbia. The results of previous studies suggest phytoplasmas as potential causes ciixides as vectors and strong influence of environmental factors. Besides the changes in corn growing practices, crop rotation, and the use of pesticides, it is necessary to introduce appropriate hybrids into corn production. Within corn breeding programs, a highly tolerant corn reddening population has been identified. One cycle of combined S1-HS recurrent selection has been conducted with the goal to improve the characteristic of the population per se as well as its combining ability. Growing corn hybrids tolerant to reddening can provide satisfactorily and economically acceptable solution.

U prvoj deceniji 21. veka, crvenilo kukuruza se javilo u značajnijem obimu ne samo u regionu Banata, nego i u drugim krajevima Srbije. Rezultati dosadašnjih istraživanja upućuju na zaključak o fitoplazmama kao potencijalnim prouzrokovačima, cikadama kao vektorima i snažnom uticaju faktora spoljašnje sredine. Osim promena u sistemima ratarenja, plodoredu i primeni pesticida, u proizvodnju je neophodno uvesti odgovarajući sortiment. U okviru oplemenjivačkih programa identifikovana je populacija kukuruza izrazito tolerantna prema crvenilu. Sproveden je jedan ciklus kombinovane S1-HS rekurentne selekcije sa ciljem popravke karakteristika populacije per se i njenih kombinacionih sposobnosti. Gajenjem hibrida tolerantnih prema crvenilu može se postići zadovoljavajuće i ekonomski prihvatljivo rešenje.