2Li Z Q, Zeng S M. Wheat rust in China (in Chinese) [M]. Beijing:China Agriculture Press(北京:中国农业出版社), 2002, 26.
3Shi Y F, Fan J H. Climatic warming and drying trend and its impact on water resources in mid-latitude China (in Chinese) [ J].水科学进展,1991,2(4):217-223.
4Milus E A, Kristensen K, Hovmoller M S. Evidence for increased aggressiveness in a recent widespread strain of Puccinia striiformis f. sp. tritici causing stripe rust of wheat [ J ]. Phytopathology, 2009, 99 ( 1 ) : 89-94.