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首页> 外文期刊>African Journal of Biotechnology >Citrus tristeza virus: An increasing trend in the virus occurrence and distribution in citrus fruits of Northwest, Pakistan
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Citrus tristeza virus: An increasing trend in the virus occurrence and distribution in citrus fruits of Northwest, Pakistan

机译：柑橘tristeza病毒：巴基斯坦西北部柑橘类水果中病毒的发生和分布呈上升趋势

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摘要

Citrus tristeza clostervirus (CTV) is one of the most damaging fruit viruses playing havoc in citrus orchards around the world. Here, we report, an ELISA-based indexing of citrus trees over a period of eight years (2002 to 2010) in Northwest Pakistan, revealing that the incidence of CTV is increasing mainly with the distribution of infected rootstocks, putting citrus industry at the verge of complete annihilation. The surveys revealed that the average incidence of CTV in 10 major citrus growing districts in the Northwest of Pakistan has steadily increased from 24% (in 2002) to 31, 35, 39 and 44 in 2004, 2006, 2008, 2010, respectively. Maximum per cent increase of CTV was in citrus orchards in district Haripur, that is, 27.50% and followed by 26% increase of the virus incidence in district Swat during 2002 to 2010. The incidence of the virus was correlated with use of sour orange as root stock with rough lemon. In orchards, where rough lemon was used as root stock; the incidence of CTV was comparatively low. A comparative study of the virus incidence conducted during 2006 to 2012 in sweet orange trees grafted on sour orange and rough lemon in Northwest indicated an average per cent incidence 43 and 37, respectively. This is the first comprehensive study on citrus fruits to determine an increasing trend of CTV in Northwest of Pakistan where citrus industry has been a major source of income for local farmers. An extensive rescue plan needs to be placed to avoid complete destruction of this export-based industry.
机译：柑桔丝状体clostervirus（CTV）是破坏力最强的水果病毒之一，在世界范围内对柑橘园造成破坏。在此，我们报告了巴基斯坦西北部八年来（2002年至2010年）基于柑橘的ELISA索引，发现CTV的发生率主要随着受感染砧木的分布而增加，从而使柑橘产业处于边缘彻底歼灭调查显示，巴基斯坦西北10个主要柑橘种植区的CTV平均发病率稳步上升，分别从2002年的24％（​​2002年）增加到2004年，2006年，2008年，2010年的31、35、39和44。 CTV的最大增幅是在Haripur地区的柑桔园，即27.50％，其次是Swat地区在2002年至2010年病毒发病率上升26％。该病毒的发生率与使用酸橙有关根汤加粗柠檬。在果园里，以粗糙的柠檬作为砧木; CTV的发生率相对较低。在2006年至2012年期间，对西北部酸橙和毛柠檬嫁接的甜橙树中病毒的发生率进行了比较研究，结果表明，平均发生率分别为43％和37％。这是对柑橘类水果进行的首次综合研究，以确定巴基斯坦西北部CTV的增长趋势，那里的柑橘业已成为当地农民的主要收入来源。需要制定广泛的救援计划，以避免完全破坏这个以出口为基础的产业。

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