Studies on the cultivation and morphological and cytological identification of wheat-Elytrigia intermedium alien disomic addition lines Identification of wheat-Elytrigia intermedium alien addition line with resistance to powdery mildew by cytology and RAPD analysis Identification of Octoploid Trititrigia and Alien Disomic Addition Line with Powdery Mildew Resistance Morphological and Cytological Identification of Wheat-Elytrigia intermedium Alien Substitution Line Shannong 0095 Cyto-genetic Study of F1, F2 and F3 in Crossing Powdery Mildew-resistant Wheat-Elytrigia intermedium Disomic Alien Addition Lines with Gametocidal Chromosome 3C (of Ae.triuncialis) Addition Lines