The Study of Cucumber Root-knot Nematode Disease Index Classification Method
-
摘要: 采用根畸变 (根结或根肿大) 百分率统计法、数根瘤法、根结百分率3种方法来比较黄瓜 (嫁接黑籽南瓜) 根结线虫病情指数, 结果显示:数根瘤法和根结百分率的方法统计病情指数分别为25.33和42.67, 根畸变 (根结或根肿大) 百分率统计病情指数为61.33, 与数根瘤法和根结百分率所得数据相比在P0.05上差异显著;根畸变 (根结或根肿大) 百分率与数根瘤法和根结百分率法相比, 前者可以较客观地反映出不同程度的发病危害情况。Abstract: In recent years, the root knot nematode disease often occurred in Ding ji, Huainan, cultivation and management cucumber by most grafting black seed pumpkin in this region.The main symptoms of ill root hair after grafting was swelling, decay of the parts root, little or no lateral roots and fibrous roots.The light root was mainly some number root node of the parts root.In this paper, through root distortion (root knot or root nodes) percentage statistics, nodule number, root knot percentage method, 3kinds of method to compare the cucumber (grafted black seed pumpkin) root knot nematode disease index.The results showed that disease index of the nodule number and root knot percentage method are 25.33 and 42.67, root distortion (root knot or root nodes) to calculate disease index is 61.33, significant differences on the P0.05 compared with the number of nodule and root node percentage.Root distortion (root knot or root nodes) compared with the nodule number and root knot percentage method, the former can reflect objectively damage of different degrees.
-
Key words:
- root-knot nematode /
- disease index /
- drading standards
-
[1] 刘维志.植物线虫志[M].北京:中国农业出版社, 2000. [2] 刘呜韬.北方蔬菜根结线虫病加重的原因及控制对策[J].河南农业科学, 2001, (1) :23-24. [3] 刘志明, 白先进, 秦碧霞.石灰氮防治番茄根结线虫盆栽试验[J].植物保护, 2006, 32 (2) :105-106. [4] 薛习东, 吴家琴, 陈绵才.红麻根结线虫生恬习性及防治研究[J].植物保护学报, 1992, 19 (2) :117-121. [5] 林茂梏, 马安民, 沈素文, 等.淡紫拟青霉的培养和对南方根结线虫的防治试验[J].生物防治通报, 1993, 19 (3) :116-118. [6] 廖月华.蔬菜对番茄、黄瓜、芹菜、茄子病原根结线虫的抗性试试验[J].江西植保, 1995, 19 (1) :14-16. [7] 曾义安, 朱月林, 黄保健.黑籽南瓜砧木对黄瓜生长结实、抗病性及营养元素含量的影响[J].植物资源与环境学报, 2004, 13 (4) :15-19. [8] 蒋有条, 孙利祥, 张明方.我国瓜类嫁接栽培的进展与展望[J].长江蔬菜, 1998, (6) :1-4. [9] 缪旻珉.黄瓜热伤害与热适应生理机制及耐热栽培技术研究[D].南京:南京农业大学, 2000. [10] 安志信.蔬菜嫁接育苗实用技术[M].天津:天津科学技术出版社, 1996. [11] 张丽琴, 杨敏杰.黑籽南瓜的特性与栽培[J].云南农业科技, 1992, (2) :27-28. [12] 肖炎农, 王明祖, 付艳平, 等.蔬菜根结线虫病情分级方法比较[J].华中农业大学学报, 2000, 19 (4) :336-338. [13] 中华人民共和国农业部.NY/T, 1857.8-2010黄瓜主要病害抗病性鉴定技术规程第8部分:黄瓜抗南方根结线虫病鉴定技术规程[B].北京:中国农业出版社, 2010. -
点击查看大图
计量
- 文章访问数: 179
- HTML全文浏览量: 35
- PDF下载量: 6
- 被引次数: 0
下载:
