Study on characteristics of wheat slow stripe-rust
Yinghua Zhang, Xunwu Shang, Xiangzhuang Zhou, Ming Xie, Xue-gui YIN, Duoxin Sun, Qiujie Yan · 2005
Slow strip-rust is important to keep stable and sustained disease resistance. Between 2003 and 2004, ten cultivars in Qingshui were selected to test the characteristics of slow strip-rust. The results showed that Libellula, Strampelli and Wudubaijian were highly slow rust cultivars; Qingnong No.3 and Xiannong No.4 were middle slow rust cultivars; Lantian No.1 and Qingnong No.1 were low slow rust cultivars; Tianxuan 15 and Fu 63 were fast rust cultivars. Conclusions had been drawed that slow-rust cultivars had long latent period, prevalence rate was lower than 50 % or severity was lower than 25 %, disease index was lower than 15 % or final disease index was lower than 60 %, damage rate of kernel weight was lower than 9 % or relative damage rate of kernel weight was lower than 40 %.