"Powdery mildew is one of the most damaging diseases on barley and wheat. It is able to adapt to not only resistances of grown varieties but to fungicides too. A method according to Dreiseitl and Schwarzbach (1994) will be used for the quantification of virulence. The twelve most important virulences of powdery mildew on barley and six on wheat will be studied. Their quantification is important for reasonable utilisation of varietal resistances of both crops in breeding and growing. To determine resistance to fungicides a method of testing on leaf segments in a series of different concentration levels will be applied (Limpert, Fischbeck, 1987). EC 50 and RFM factors will be calculated using probit transformation of values of infection reduction and linear regression analysis. Results achieved should help to improve the management of fungicide application. In addition to monitoring the resistance to fungicides, laboratory generation experiments and field trials will be carried out in order to obtain dat"@en . . . "http://www.isvav.cz/projectDetail.do?rowId=GA522/96/1075"^^ . . "Padl\u00ED travn\u00ED pat\u0159\u00ED k nejv\u00FDznam\u011Bj\u0161\u00EDm chorob\u00E1m je\u010Dmene a p\u0161enice. Dok\u00E1\u017Ee se p\u0159izp\u016Fsobit nejen odolnostem p\u011Bstovan\u00FDch odr\u016Fd, ale i fungicid\u016Fm. Pro kvantifikaci virulence bude pou\u017Eit postup dle Dreiseitla a Schwarzbacha (1994). U padl\u00ED na je\u010Dmeni bude sledov\u00E1no 12 a u padl\u00ED na p\u0161enici 6 nejv\u00FDznam\u011Bj\u0161\u00EDch virulenc\u00ED. Jejich kvantifikace je d\u016Fle\u017Eit\u00E1 pro racion\u00E1ln\u00ED \u0161lechtitelsk\u00E9 i p\u011Bstitelsk\u00E9 vyu\u017Eit\u00ED odr\u016Fdov\u00FDch odolnost\u00ED obou plodin. Pro stanoven\u00ED rezistence k fungicid\u016Fm bude vyu\u017Eita metoda testov\u00E1n\u00ED na listov\u00FDchsegmentech v koncentra\u010Dn\u00ED \u0159ad\u011B (Limpert, Fiscbeck, 1987). Faktory EC 50 a RFM budou po\u010D\u00EDt\u00E1ny probitovou transformac\u00ED hodnot redukce napaden\u00ED a line\u00E1rn\u00ED regresn\u00ED anal\u00FDzou. V\u00FDsledky by m\u011Bly slou\u017Eit k zdokonalen\u00ED technologie aplikace fungicid\u016F. Monitoring rezistence k fungicid\u016Fm bude dopln\u011Bn laboratorn\u00EDmi genera\u010Dn\u00EDmi pokusy a poln\u00EDmi pokusy s c\u00EDlem zjistit podklady k odvr\u00E1cen\u00ED rizika selh\u00E1n\u00ED \u00FA\u010Dinnosti." . "Studies of Erysiphe graminis f.sp.hordei and f.sp.tritici populations in the Czech republic"@en . . . "Byla kvantifikov\u00E1na virulence padl\u00ED travn\u00EDho na je\u010Dmeni a padl\u00ED travn\u00EDho na p\u0161enici k vybran\u00FDm gen\u016Fm rezistence u obou hostitel\u016F na \u00FAzem\u00ED \u010CR. U padl\u00ED travn\u00EDho na p\u0161enici byla v laboratorn\u00EDch podm\u00EDnk\u00E1ch stanovena tolerance k fungicid\u016Fm na b\u00E1zi morfolin\u016F a"@cs . . "0"^^ . . . "1"^^ . . "GA522/96/1075" . "3"^^ . "Studium populac\u00ED Erysiphe graminis f. sp. hordei a f. sp. tritici na \u00FAzem\u00ED \u010Cesk\u00E9 republiky" . "0"^^ . "3"^^ . . . . . . .