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1.在重庆地区小麦根腐病一般在30～50%,严重的达到90%以上,甚至引起大量死苗。一般引起减产10%以上,重病田测定减产达58%,严重影响小麦生产. 2.选用本地当家品种巴麦18和绵阳11号种子作带菌分离,交链孢菌(Alternaria tricina)和多种镰刀菌(Fusarium spp.)比率较高,分别为5.2～32%,和4.6～17%。病组织分离出现频率较高的真菌分别为腐霉菌、交链孢菌,夹孢镰刀菌(Fusarium Oxysporum spp.)、雪霉菌、[Galachia nivalie(Ces.exsacc)W.
1. In Chongqing, the root rot of wheat is generally 30-50%, seriously over 90%, and even cause a large number of dead seedlings. Generally caused by more than 10% reduction in yield, yield reduction of 58% in severe disease field, seriously affecting the wheat production. (2) Selection of the local varieties Baimai 18 and Mianyang 11 seeds for fungi separation, Alternaria (Alternaria tricina) and a variety of sickle The rates of Fusarium spp. Were higher at 5.2 ~ 32% and 4.6 ~ 17%, respectively. The fungi with higher frequency of diseased tissues were Pythium, Alternaria, Fusarium Oxysporum spp., Snow fungi, [Galachia nivalie (Ces. Exsacc) W, respectively.