小麦白粉病抗病材料的鉴定研究

１９９７－２０００年连续３年，利用陕西小麦白粉病茵模拟病圃混合茵系，对陕西等省新育成的２８０份小麦育种材料进行了苗期与成株期抗病性鉴定，筛选出对小麦白粉病茵高抗－免疫的育种亲本材料１２份，其中高抗材料２份为鉴４４和鉴４７；免疫材料１０份为鉴１９、鉴２０、鉴４０、鉴４６、鉴４９、８８（６０５）－１－５－１－２－２－１、保丰９４－６６、贵农２９和秦８１２０－２３－５－１８。这些材料表现稳定，可供抗白粉

Determination of Wheat Materials for Resistance to Powdery Mildew

During 1997 to 2000, the disease resistance of 280 wheat materials to powdery mildew were identified at seedling and adult plant stages in a disease nursery in Yangling where the pathogen of wheat powdery mildew ( Erysiphe graminis f. sp. tritici ) could not oversummer naturally. The results showed that 12 materials of the 280 ones were high resistant to powdery mildew. Among them, 2 high resistant materials were Jian 44 and Jian 47 and 10 immunity materials were Jian 19, Jian 20, Jian 40, Jian 41, Jian 46, Jian 49, 88(605) 1 5 1 2 2 1, Baofeng 94 66, Guinong 29 and Qin8120 23 5 18. High resistance and immunity of the 12 materials showed their stability of disease resistance. So they could be applied in wheat breeding for resistance to powdery mildew.