【摘要】 田间试验表明 ,室外存放 3年的马铃薯黑胫病病组织播种时撒入播土内 ,具有较强的侵染性。马铃薯病根组织处理的发病率最高 (9 0 3% ) ,病茎叶和无症状植株两个处理均为 5 16 % ,比未撒入马铃薯病组织的对照增大 3～ 6倍 ,显然病组织对土壤传播马铃薯黑胫病具有重要作用更多还原

【Abstract】 Field experiments showed that diseased potato tissues at outdoors for 3years could increase the infection of potato blackleg disease when applied together with planting materials.The treatment with diesased root tissues exhibited the highest infechtion(9 03%).The treatments with diseased leaf and leaf tissues as well as the aymptomless plant tissues were the same(5 16).Infection of the treatments with diseased tissues were 3～6 times high than the check.$$$$更多还原