LUO Guibin,ZHANG Jianjun,CHEN Xiaodong,et al.Effect of Ridging Plus Pesticide Use on Agrobacerium tumefaciens Infecting and Growth of Cerasus yedoensis[J].Northern Horticulture,2017,41(03):121-126.[doi:10.11937/bfyy.201703028]
起垄与药剂组合对樱花根癌病防效及生长的影响
- Title:
- Effect of Ridging Plus Pesticide Use on Agrobacerium tumefaciens Infecting and Growth of Cerasus yedoensis
- Keywords:
- Cerasus yedoensis; Agrobacerium tumefaciens; ridging; pesticides; prevention and control; growth
- 文献标志码:
- A
- 摘要:
- 以 1年生日本晚樱嫁接苗为试材，采用起垄与药剂组合处理，进行壤质土壤轮作和砂质土壤连作苗圃试验，研究起垄与药剂组合措施对樱花根癌病防效及生长的影响，以改善樱花根癌病的防治方法并提高其防效。结果表明：在壤质轮作条件下，苗木发病率较低，起垄药剂各组合措施以及平畦1∶100倍波尔多液蘸根、撒施硫磺粉+（1∶100倍）波尔多液蘸根、2倍K84 菌剂蘸根后栽植措施均比平畦蘸清水栽植能极显著降低其感病指数及发病率(P<0.01)；在砂质连作条件下，除平畦诺氟沙星药剂处理外，其余措施至少显著降低了其感病指数及发病率(P<0.05)，且起垄药剂组合的发病率显著低于平畦药剂处理，其中2倍K84菌剂组合的发病率最低。2倍K84菌剂与起垄组合措施有利于促进根冠直径的生长、2 mm以上粗根数量及枝条数量的增加；但药剂处理及其与起垄组合对樱花底径的生长无显著影响。
- Abstract:
- To prevent and control the infection of Agrobacerium tumefaciens，grafted Cerasus serrulata var. lannesiana seedlings of 1 year old were experimented with the methods of ridging plus pesticide use under the condition of loamy rotation and constant cultivation in sandy soil in the nursery.The results showed that seedling disease incidence rate was low under the condition of loamy rotation，in comparison dipping with just water before cultivation，the disease index and incidence of the disease were significantly decreased(P<0.01) by every ridging plus pesticides and normal culture plus the pesticides use bordeaux mixture for root dipping before cultivation，mixed use of sulfur powder with bordeaux，and use of 2 times of K84 for root dipping before cultivation；under the condition of constant cultivation in sandy soil in the nursery，the pesticides use except norfloxacin，the disease index and incidence of the disease were significantly decreased(P<0.05) by other measures，the infection rate by the method of ridging plus pesticides was lower than leveling row plus pesticides use，and the lowest incidence was obtained by using K84.Use of K84 plus ridging could improve the root growth and number of roots with diameter 2 mm above and the branches increased most.Use of pesticides plus ridging had no significant effect on the ground diameter of Cerasus yedoensis seedlings.
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备注/Memo
第一作者简介：罗贵斌（1966-），男，陕西宁强人，硕士，副教授，研究方向为观赏植物栽培与园林规划设计。E-mail：lgbin0105@163.com.基金项目：汉中市科技计划资助项目（2014ZKC48-02）。