中国蔬菜Issue(7)：48-51,4.
南方锈病在鲜食玉米上的发生动态及其发生程度与产量的相关性
Occurrence Dynamic of Southern Rust on Fresh Corn and Correlation between Occurrence Degree and Yield
摘要
Abstract
Field investigation was conducted to study the occurrence dynamics of southern rust in fresh corn production area in Guangzhou.In addition,hundred-grain weight was used as an important index to analyze the correlation between southern rust damage degree and fresh corn yield.Result showed that southern rust could occurre all year round during fresh corn growing period.The 2 occurrence peaks were in July and November. Southern rust damage could significantly reduce the hundred-grain weight of fresh corn.The regression analysis indicated that there was a significant negative correlation between hundred-grain weight of fresh corn and disease severity of southern rust.The regression equation wasy=-0.031x + 31.924.The hundred-grain weight would reduce by about 0.3 g,when southern rust severity increased by 10%.关键词
鲜食玉米/南方锈病/发生动态/产量损失/百粒重/相关性Key words
Fresh corn/Southern rust/Occurrence dynamic/Yield loss/Hundred-grain weight/Correlation引用本文复制引用
田耀加,赵守光,张晶,黄亮华,王秋燕,陈红弟..南方锈病在鲜食玉米上的发生动态及其发生程度与产量的相关性[J].中国蔬菜,2016,(7):48-51,4.基金项目
广东省科技计划广东省重点科研基地项目（2013A061401019），广州市科技计划产学研协同创新重大专项 （）
