山东省小麦禾谷孢囊线虫秋冬季节发生调查  

Investigation on the Occurrence of Heterodera avenae during Fall and Winter Seasons in Shandong Province

作　　者：赵洪海[1] 丁海燕[1] 

机构地区：[1]青岛农业大学农学与植物保护学院,山东省植物病虫害综合防控重点实验室,山东青岛266109

出　　处：《青岛农业大学学报（自然科学版）》2014年第2期100-104,共5页Journal of Qingdao Agricultural University(Natural Science)

基　　金：公益性行业(农业)科研专项(200903040);中国烟草总公司科技项目(110200902065);山东省"泰山学者"建设工程专项经费

摘　　要：为探讨山东省小麦禾谷孢囊线虫(CCN)秋冬季节孵出和侵染情况,于2009―2013年10―12月连续5年对青岛市城阳区CCN病田展开系统监测,并于2010、2012和2013年12月在山东省部分地区进行52病田次的抽样调查。城阳区的系统监测结果表明,CCN的2龄幼虫(J2)在2009、2012和2013年最早于12月份有孵出,而在2010和2011年10―12月份均无孵出;J2的孵出与11月份的气温有一定关系,在月平均气温低于10℃的年份,J2可以孵出或孵出机率大。抽样调查发现,2010年J2在所有10个病田均无冬前孵出,2012和2013年在部分病田发生冬前孵出,孵出病田率分别为90%和59%。2013年J2孵出病田率地区间差异很大,菏泽和烟台偏高,而青岛和潍坊较低。系统监测和抽样调查均未发现J2对小麦根系的侵入。In order to probe into the emergence and infection situations of cereal cyst nematode （Heterodera avenae, CCN,） during fall and winter seasons in Shandong province, block-fixed system monitorings were carried out in one CCN-diseased field of Chengyang district, Qingdao city from October to December in the years of 2009 -- 2013, and non-system investigations were proceeded with random sampling for 52 CCN diseased field times in 2009, 2012 and 2013 in partial regions of Shandong province. The results of the system monitorings showed that the second stage juvenile （J2） of CCN emerged into soil the earliest in December in 2009, 2012 and 2013, but no emergence occurred from October to December in 2010 and 2013. It was indicated that there was a certain relationship between CCN emergence in December and air temperature of November, emergence would occur or its probability would be high in the years which had a mean temperature below 10℃ in November. It was found in the non-system investigations that there was no e mergence of J2 in the total 10 diseased fields from October to December in 2010, but J2 emerged into soil in partial diseased fields in December of 2012 and 2013 with the J2 emerging field ratio of 90% and 59%, respectively. The J2 emerging field ratios were much different among prefecture-level cities in 2013, being high in Heze and Yantai and low in Qingdao and Weifang cities. Wheat root penetrated J2 was detected neither in the system monitorings nor in the non-system investigations.

关 键 词：小麦 禾谷孢囊线虫 秋冬季节 孵出 山东省 

分 类 号：Q291[生物学—细胞生物学]