EVALUATION OF TIMOPHEEVI WHEATS FOR RESISTANCE TO RUSTS AND POWDERY MILDEW

Abstract

Twenty roUr aect!5SioDs oftimopbeevi wbeats were screened for adult plant resistance to stem rust, leaf rust. shipe ,rust, aud seedling resistance to powdery miIcIew at Wellington, a hot spot, f9r, rusts aud edler', t'otiar diseases of wheat. The majority ,of Triticum timopheeri ~eJdIibite4 bIgb mature plaut resistance to st;em, leaf aud shipe rusts and seedling resistaaee, to powdery 1IIildew. The ooIy strain of T. mIIItIaee, a mutant of T. timopheeri, .,. fOUDd ....yfree tmmWedion of all the three rusts aud po~dery mildew. However, the ..... of 'f.lII1Il1Itkum sbowedb.igh suseeptibUity to aU three rusts but showed low iDfedionto powdery mOdew.,T. timopheeri-derived genes Sr36, Sr37 wefe found effective ....."!Item rustaud PDI6 agAiDstpowdery nDtr'