巴基斯坦西北部(开伯尔-普赫图赫瓦省)和查谟-克什米尔马铃薯种植区主要土传病毒的检测和病毒-载体关联评估

Q4 Agricultural and Biological Sciences

International Journal of Phytopathology Pub Date : 2021-10-03 DOI:10.33687/PHYTOPATH.010.02.3781

Nayla Haneef, M. Arif, Muhammad Tariq-Khan

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引用次数: 1

摘要

土壤传播的马铃薯病毒对未来作物产量的经济威胁越来越大。本研究调查了巴基斯坦西北地区和查谟-克什米尔地区马铃薯拖地病毒(PMTV)和烟草摇铃病毒(TRV)及其媒介间的田间感染关系。这些土壤传播病毒的发病率和分布是通过从KPK的马拉坎德和哈扎拉区以及阿扎德克什米尔的选定地区收集现场样本来估计的。马拉坎德的PMTV发病率为22%(斯瓦特第二和斯瓦特第五地区最高，为40%)，哈扎拉人为24%(加利亚特最高，为50%)，阿扎德查谟和克什米尔(AJK)的选定地区为23%(拉瓦拉科特和特拉卡尔最高，为40%)。AJK地区TRV发病率为49% (Khaigala Rawalakot地区实地发病率最高为100%)，马拉坎德地区为53%(斯瓦特II地区实地发病率最高为80%)，哈扎拉地区为24% (Abbottabad和Mansehra地区实地发病率最高为70%)。PMTV、TRV的传播媒介为地下海绵孢子虫和毛霉、副毛霉。马拉坎地80%(80%)的田间发现有地下葡萄球菌，64%的田间发现有毛蛾和副毛蛾。在哈扎拉，84%的调查农田被发现有地下葡萄球菌侵染，65%被发现有Trichodorus、Paratrichodorus侵染。在AJK s，地下分布在79%的田间。病毒(PMTV和TRV)与其各自的载体呈比例显著相关(P值=0.000)。相应的R2分别为0.70和0.82，表明病毒与其载体呈正相关。病毒感染(PMTV和TRV)的发生率和严重程度与病媒(S. subterranea;小Trichodorus，副Trichodorus)，表明病媒的存在和活动增加了疾病的严重程度。该研究将为马铃薯经济收获的病媒病毒管理提供工具

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Detection of Major Soil-Borne Viruses and Assessment of Virus-Vector Association in Potato Growing Areas of North-Western Pakistan (Khyber Pakhtunkhwa) and Azad Jammu and Kashmir

Soil-borne potato viruses are an increasing economic threat to crop yield in the future. Potato mop-top virus (PMTV) and Tobacco rattle virus (TRV) and their vector association in field infection in North-western region of Pakistan and Azad Jammu and Kashmir were surveyed in this study. Incidence and distribution of these soil-borne viruses were estimated by field sample collection from Malakand and Hazara divisions of KPK and selected areas of Azad Kashmir. PMTV incidence was 22% in Malakand (highest of 40% in Swat II and Swat V), 24% in Hazara (highest 50% in Galliyat), and 23% from selected areas of Azad Jammu and Kashmir (AJK) (Highest with 40% in Rawalakot and Trarkhal). TRV incidence was 49% in AJK (100% highest field incidence in Khaigala Rawalakot), 53% in Malakand division (80% highest field incidence in Swat II), and 24% in Hazara division (70% highest field incidence in Abbottabad and Mansehra districts). PMTV, TRV vectors are Spongospora subterranea and Trichodorus, Paratrichodorus spp. were found distributed in all surveyed areas. Eighty percent (80%) fields were found infested with S. subterranean, while Trichodorus and Paratrichodorus were found in 64% in Malakand. In Hazara, 84% of surveyed fields were found infested with S. subterranea while 65% were found to be infested with Trichodorus, Paratrichodorus. In AJK S. subterranea was found distributed in 79% of fields. A significant relationship (P value=0.000) between viruses (PMTV and TRV) and their respective vectors were detected in proportionate. The corresponding R2 (0.70 and 0.82) indicates positive relation between viruses and their vectors. Positive Pearson correlation was found among incidence and severity of virus infection (PMTV and TRV) and vectors (S. subterranea; Trichodorus minor, Paratrichodorus), indicating increased disease severity with vector presence and activity. The study will be a tool in vector virus management to economical potato harvest

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来源期刊

International Journal of Phytopathology Agricultural and Biological Sciences-Agricultural and Biological Sciences (miscellaneous)

CiteScore

1.20

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0.00%

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