论文部分内容阅读
纹枯病该病已成为江苏省水稻上的常发、重发性病害。据该省气象台预报,7月平均气温全省大部地区都以正常略高为主,局部偏高,有利于纹枯病的侵染蔓延,加上今年大多数地区水稻移栽早、生长快,田间高峰苗出现早,纹枯病早发、重发的可能性大,预计发生程度比2011年重。稻瘟病、稻曲病稻瘟病近年来在江苏省丘陵、江淮及淮北局部地区流行频率高,稻曲病在杂交稻区及种植粗秆大穗型品种较多的地区流行频率高,流行的主要原因是品种感病和天气条件适宜。今年水稻品种与去年相比未有大的调整,感病品种种植面积仍较大,如一些地区种植的华粳6号、华粳7号、南粳44、镇稻99、盐稻
Sheath blight The disease has become a common and recurrent disease on rice in Jiangsu Province. According to the province’s meteorological station forecast, the average temperature in July in most parts of the province are slightly higher than normal, partial high, is conducive to the spread of sheath blight infection, coupled with most of this year, rice transplanting early, fast growth , Early emergence of field peak seedlings, sheath blight early onset, the possibility of re-issued large, is expected to occur more heavily than in 2011. Blast disease, rice smut Blast in recent years in Jiangsu Province, Huron, Jianghuai and Huaibei local areas of high prevalence, the incidence of false smut in the hybrid rice area and the cultivation of coarse large panicle varieties in more areas of high prevalence, the prevalence of The reason is the variety of susceptible and weather conditions suitable. Compared with last year, rice varieties have not been greatly adjusted and the cultivated area of susceptible varieties is still relatively large. For example, Huajing 6, Huajing 7, Nanjing 44, Zhenyao 99, and salt rice planted in some areas