XING Yilin,ZHANG Min,SHEN Hongmiao,et al.Control of Jujube-fruit Shrink Disease With Five Fungicides and Two Inducing Agents[J].Northern Horticulture,2016,40(20):122-126.[doi:10.11937/bfyy.201620031]
五种杀菌剂和二种诱导剂防治枣缩果病研究
- Title:
- Control of Jujube-fruit Shrink Disease With Five Fungicides and Two Inducing Agents
- Keywords:
- Alternaria alternata; chemical control; jujube-fruit shrink disease; systemic acquired resistance; Zizyphus jujuba
- 文献标志码:
- A
- 摘要:
- 以苯甲丙环唑、多菌灵、多抗霉素、异菌脲、戊唑醇5种杀菌剂和水杨酸、水杨酸钠2种诱导剂为试材，以链格孢菌（Alternaria alternata）为靶标病原菌，采用菌丝生长速率法和孢子萌发抑制法测定其对链格孢菌的毒性，并进行了林间药剂防治试验。结果表明：5种杀菌剂中对链格孢菌的抑制效果较好的药剂有苯甲丙环唑和异菌脲，其EC50值分别为0.519 6、0.517 5 mg?L-1，对链格孢菌孢子萌发的抑制率分别为73.5%和74.9%；0.5～3.0 mmol?L-1水杨酸和0.5～7.0 mmol?L-1水杨酸钠对链格孢菌的孢子萌发和菌丝生长均无抑制作用。林间防治中，苯甲丙环唑和异菌脲防治效果最好，防效分别为94.7%和92.9%；施用3.0 mmol?L-1的水杨酸和水杨酸钠后，枣缩果病的发病率均显著低于对照，水杨酸和水杨酸钠的诱导抗病效果分别为72.0%和57.3%。
- Abstract:
- Five fungicides including benzoyl propiconazole，carbendazim，polyoxins，iprodione and tebuconazole，and two inducers for disease resistance including salicylic acid and sodium salicylate were used as test materials，and with Alternaria alternata as target pathogens，the primary infection pathogen of jujube-fruit shrink disease were performed by using inhibition method of mycelia growth rate and spore germination.Field control experiments in jujube plantations of above mentioned seven chemicals were determined as well.The results showed that fungicides with the best inhibition effect were benzoyl propiconazole and iprodione，with EC50 values of 0.519 6 and 0.517 5 mg?L-1，and the inhibitory rate of 73.5% and 74.9%，respectively.Salicylic acid at 0.5-3.0 mmol?L-1 and sodium salicylate at 0.5-7.0 mmol?L-1 had no inhibition effects on spore germination and mycelia growth of A.alternata.Benzoyl propiconazole and iprodione had the best control effect in field experiments，and their control effects were 94.7% and 92.9%，respectively.Salicylic acid and sodium salicylate at 3.0 mmol?L-1 applied by spraying induced systemic resistance against jujube-fruit shrink disease，with significantly lower disease incidences compared with control，and their inducing effects were 72.0% and 57.3%，respectively.
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备注/Memo
第一作者简介：邢艺林（1989-），男，硕士研究生，研究方向为林木病害防治。E-mail:xyl1412kid@163.com.责任作者：冉隆贤（1962-），男，博士，教授，博士生导师，研究方向为植物病害生物防治及植物诱导抗病性。E-mail:longxianran@163.com.基金项目：河北省自然科学基金资助项目（C2016204202）。