malingshuyingyangfengfu，shengyuqiduan
，chanlianggao，jingjixiaoyida
，quanguogedijunzhongzhi，shiyizhongshenshourenmenxiaidejingjizuowu。danzaishengchanshang
，malingshuyiganranduozhongbingdu，ruqingxinghuayebingdu、條斑花葉病毒

、皺縮花葉病毒、卷juan葉ye病bing毒du等deng，病bing毒du侵qin入ru馬ma鈴ling薯shu植zhi株zhu後hou，即ji參can與yu馬ma鈴ling薯shu的de新xin陳chen代dai謝xie，利li用yong馬ma鈴ling薯shu的de營ying養yang複fu製zhi增zeng殖zhi病bing毒du
，並bing通tong過guo馬ma鈴ling薯shu塊kuai莖jing逐zhu代dai積ji累lei，使shi馬ma鈴ling薯shu植zhi株zhu矮ai化hua，莖jing稈gan細xi弱ruo，葉ye片pian失shi綠lv、卷曲或皺縮，薯塊變小或畸形而減產30-50%

，重病田可減產80%，個ge別bie地di塊kuai甚shen至zhi絕jue產chan。目mu前qian尚shang沒mei有you任ren何he藥yao劑ji能neng不bu傷shang害hai馬ma鈴ling薯shu隻zhi殺sha死si其qi植zhi株zhu體ti內nei的de病bing毒du，唯wei一yi的de方fang法fa是shi利li用yong馬ma鈴ling薯shu莖jing尖jian組zu織zhi培pei養yang脫tuo除chu病bing毒du，獲huo得de脫tuo毒du植zhi株zhu和he種zhong薯shu。

　　jingjianzuzhixibaofenliesudukuai
，yuanyuanchaoguobingduzengzhi，zhezhongsuduzhichaxingchenglejingjiandewubingduqu。tongshijingjianxibaodaixiewangsheng，zaiduihechenghesuanfenzideqiantijingzhengfangmianzhanyoushi，bingdunanyihuodefuzhizijideyuanliao。lingwaijingjianfenshengzuzhineihuopeiyangjineimouxiechengfennengyizhibingduzengzhi。suoyiliyongjingjianzuzhipeiyangkehuodetuodumiao
，youtuodumiaokuaisufanzhikehuodetuoduzhongshu。

　　馬鈴薯脫毒後，恢複了正常的代謝活動，充分發揮了原有的增產潛力
，比未脫毒增產50%左右
，高的可成倍增產。表現為出苗早2-4天，植株健壯，葉片肥大濃綠


，光合效率高
，單株結薯數增加50-70%，單薯重增加50%，根係發達，吸收礦質營養的能力強
，抗高溫、幹旱的能力較強。

　　malingshupinzhongjingtuoduhou，chanliangdafudutigao
，pinzhiyeyousuogaishan
，danpinzhongduibingdudekangxingbingweizengjia。yincituoduduifangzhibingdubinghailaishuo

，bingfeishiyilaoyongyide。zaimalingshushengchanhefanzhongguocheng，rubuzhuyifangzhibingdudezaiduganran
，chanliangzehuizhuniandijian。yibanqingkuangxia
，dabufentuodupinzhonglianxuzhongzhiliangniansiji，rengnengbaochijiaogaochanliang，dandiwujibingduzaizhizhutineijileidadaojiaogaonongdu
，zhizhubiaoxianmingxiandetuihuazhengzhuang，jihuyutuoduqianxiangjin。yinci，zaimalingshushengchanshangyishiyaozhuyiyi２年為一周期更換新的脫毒種苗，二是要采取輪作換茬、土壤消毒等多種方式
，減少病毒在植株內的積累

，減緩脫毒品種的退化進程。