000			03122nam a22004217a 4500
001			G93483
003			MX-TxCIM
005			20230306222232.0
008			121211s ||||f| 0 p|p||0|| |
040			_aMX-TxCIM
041			_aeng
090			_aCIS-5648
100	1		_9915 _aYahyaoui, A.H. _gGlobal Wheat Program _8INT3301
245	1	0	_aWheat yellow rust (Puccinia graminis fsp. tritici) in Central West Asia and North Africa
260			_c2009. _aAntalya (Turkey) : _bMETU,
300			_a1 page
500			_aAbstract only
520			_aIn west Asia, Central Asia and the Caucasus (CAC), and North African (CWANA) countries, wheat stands out for high value of production under irrigation, in higher rainfall and moderate rainfall agro-ecological areas. Monoculture of high yielding varieties is rapidly replacing the traditional lower yielding landrace cultivars. In CWANA countries, wheat yellow rust (Puccinia graminis fsp tritici) is among the diseases that present a clear danger to wheat production under irrigation and in the high rainfall areas. Annual yield losses have been recorded in one or more countries and in certain areas have reached epidemic levels. Yield losses of 20 to 80% have been recorded almost annually. Application of fungicides has become a common practice in many countries. Since 1970?s yellow has become sporadic due the exploitation of effective resistance genes in different forms and combination. Durable resistance has been linked to a number of genes such Yr18 and some very effective major effective genes such as Yr 9, Yr27; Yr1 that were associated with good parental lines and hence were extensively used by breeding programs globally. As Borlaug said: ?rust does not sleep? early 1980?s Virulent race affecting the Yr9 resistance gene occurred in East Africa and spread eastward through. Resistance genes Yr27, Yr18, and other Yr-Genes have effectively reduced the impact of yellow rust for over a decade. Recent virulence on Yr27 has been detected in rust trap nurseries. The spread of this new virulence is a typical example of potential risk of wheat rusts. The potential of wheat rust epidemics from new emerging virulent rust races remains a real threat to most wheat producing countries in the world.
536			_aGlobal Wheat Program
546			_aEnglish
594			_aINT3065|INT3301|INT0610
595			_aCSC
650		7	_2AGROVOC _91310 _aWheat
650		7	_2AGROVOC _92130 _aPuccinia graminis
650		7	_2AGROVOC _93522 _aProduction
650		7	_2AGROVOC _91164 _aIrrigation
700	1		_aEzzahiri, B. _928007
700	1		_aNazari, K., _92135
700	1		_aSharma, R.K. _gFormerly Global Wheat Program _8INT3065 _9888
700	1		_aRamdani, H. _928008
700	1		_aAbdalla, O. _91991
700	1		_aSingh, R.P. _gGlobal Wheat Program _8INT0610 _9825
700	1		_aRezgui, S. _93094
700	1		_aBelkacem, A.B. _928009
700	1		_aBadebo, A. _8N1706233 _gGlobal Wheat Program _92740
773			_dAntalya (Turkey) : METU, 2009. _gp. 26 _tInternational Cereal Rusts Powdery Mildews Conference : Antalya (Turkey); 13-16 Oct 2009, Abstract Book
942			_cPRO _2ddc
999			_c7727 _d7727