| 西兰花轮作及其残体还田对土壤中病原菌微菌核数量、黄萎病发生及马铃薯产量的影响 |
| |
| 引用本文： | 王东,句梦娜,赵远征,张倩,孟焕文,周洪友.西兰花轮作及其残体还田对土壤中病原菌微菌核数量、黄萎病发生及马铃薯产量的影响[J].植物保护学报,2020,47(6):1297-1303. |
| |
| 作者姓名： | 王东 句梦娜 赵远征 张倩 孟焕文 周洪友 |
| |
| 作者单位： | 内蒙古农业大学园艺与植物保护学院, 呼和浩特 010018;内蒙古自治区农牧业科学院植物保护研究所, 呼和浩特 010031 |
| |
| 基金项目： | 国家重点研发计划（2017YFD0201101），内蒙古自治区科技计划项目（2019GG180），农业部农产品质量安全收贮运管控重点实验室开放课题 |
| |
| 摘 要： | 为明确西兰花轮作及其残体还田对土壤中病原菌大丽轮枝菌Verticillium dahliae微菌核数量、马铃薯黄萎病发生以及马铃薯产量的影响，分别于2017-2018年和2018-2019年在内蒙古自治区乌兰察布市凉城县岱海镇元山子农场人工病圃和锡林郭勒盟正蓝旗上都镇菜园村自然病圃开展田间试验，利用NP-10培养基测定不同处理土壤中的大丽轮枝菌微菌核数量，并对马铃薯地上叶片和地下块茎上黄萎病的发病率、病情指数以及马铃薯总产量和商品薯产量进行调查。结果显示，以马铃薯连作方式为对照，西兰花轮作及其残体还田后土壤中大丽轮枝菌微菌核的数量明显减少，其中在人工病圃于7、8和9月调查时分别降低了8.46%、36.41%和36.27%，在自然病圃于7、8和9月调查时则分别降低了7.22%、38.06%和48.84%；马铃薯地上叶片和地下块茎上黄萎病的发病率和病情指数均显著降低，在人工病圃对黄萎病的防效为32.91%和54.82%，在自然病圃对黄萎病的防效为46.72%和34.78%；马铃薯总产量和商品薯产量均有所提高，在人工病圃分别增产27.74%和40.08%，在自然病圃分别增产7.12%和8.77%。表明西兰花作为理想的轮作作物可应用于马铃薯黄萎病的有效防控。
|
| 关 键 词： | 西兰花轮作 马铃薯黄萎病 微菌核 病害防治 大丽轮枝菌 |
| 收稿时间： | 2020/3/29 0:00:00 |
Effects of broccoli rotation and soil amendment with its residue on the number of Verticillium dahliae microsclerotia in the soil and Verticillium wiltoccurrence and potato yield |
| |
| WANG Dong,JU Mengn,ZHAO Yuanzheng,ZHANG Qian,MENG Huanwen,ZHOU Hongyou.Effects of broccoli rotation and soil amendment with its residue on the number of Verticillium dahliae microsclerotia in the soil and Verticillium wiltoccurrence and potato yield[J].Acta Phytophylacica Sinica,2020,47(6):1297-1303. |
| |
| Authors: | WANG Dong JU Mengn ZHAO Yuanzheng ZHANG Qian MENG Huanwen ZHOU Hongyou |
| |
| Institution: | College of Horticulture and Plant Protection, Inner Mongolia Agricultural University, Hohhot 010018, Inner MongoliaAutonomous Region, China;Institute of Plant Protection, Inner Mongolia Academy of Agricultural & HusbandrySciences, Hohhot 010031, Inner Mongolia Autonomous Region, China |
| |
| Abstract: | In order to clarify the effect of broccoli rotation and soil amendment with its residue on the number of Verticillium dahliae microsclerotinia in soil, the occurrence of potato Verticillium wilt and potato yield, the number of microsclerotinia in the soil was investigated with Sorensen''s NP-10 medium and the incidence rate and disease index of potato Verticillium wilt and the total yield and commercial yield of potato were surveyed in artificially inoculated fields in Yuanshanzi Farm, Daihai Town, Liangcheng County, Wulanchabu City in 2017-2018 and in naturally infected fields in Caiyuan Village, Shangdu Town, Zhenglan Banner, Xilingol League in 2018-2019 in Inner Mongolia. The results showed that, compared with continuous potato cropping, the number of microsclerotinia in the soil decreased significantly after broccoli rotation and soil amendment with its residue. Microsclerotinia decreased by 8.46% in July, 36.41% in August and 36.27% in September in artificially inoculated fields and 7.22% in July, 38.06% in August and 48.84% in September in naturally infected fields, respectively. The incidence rate and disease index of potato Verticillium wilt decreased significantly by disease evaluation on aboveground leaves and underground tubers. The control efficacies were 32.91% and 54.82% in artificially inoculated fields and 46.72% and 34.78% in natural infecting field, respectively. The total yields and commercial yields of potato increased by 27.74% and 40.08%, respectively, in artificially inoculated fields and 7.12% and 8.77% in naturally infected fields, respectively. Therefore, as an ideal rotation crop, broccoli could be applied in disease control of potato Verticillium wilt. |
| |
| Keywords: | brocolli rotation potato Verticillium wilt microsclerotia disease control Verticillium dahliae |
|
| 点击此处可从《植物保护学报》浏览原始摘要信息 |
| 点击此处可从《植物保护学报》下载免费的PDF全文 |
|
