Preliminary Investigation of Zea Mays L.Disease Species in the Eastern Agricultural Region of Qinghai Province
To determine the species and distribution of Zea mays L.diseases in the eastern agricultural ar-ea of Qinghai Province,a field survey of Z.mays L.diseases in the eastern agricultural area of Qinghai Prov-ince was conducted using the 5-point sampling method,and it was found that Z.mays L.diseases mainly in-clude rust,leaf spot,sooty blotch,Maize round spot disease and locally there were corn stalk rot and crazy top of maize and common smut.Among them,alternaria leaf spot caused by Alternaria and the rust disease caused by Puccinia sorghi have occurred in various regions and the damage was more serious.Leaf spot disease caused by Bipolaris sorokiniana occurs seriously in Datong County,Round spot disease caused by Bipolaris zeicola was found in Guide County.In addition,the investigation on 7 different cultivars of maize found that two cultivars Gantiannuo 2 and Tieyan 53 were severely affected and followed by Jinguan 597,Heinuo 57 and Yuyu 22,which were more severely affected.There were only 2 diseases occurred in Hannuo 1 and Ganyu Tiannuo 214,and were occur with relatively light affected,these two cultivars were more resistant to sooty blotch and com-mon smut.This study preliminarily clarified the types of Zea mays L.disease and its distribution in the eastern agricultural area of Qinghai Province,and lays the foundation for the follow-up integrated disease control.
万方数据
维普
