肿根病

Fifty-three primer combinations were found to amplify nuclear DNA of Chinese cabbage, properly. They amplified the fragments up to 4 381 with an average of the 83. Among them, 9 markers derived from 9 primer combinations were linked to the clubroot resistance gene.

筛选出的适宜53对引物组合共扩增出4381条带，占总扩增片断的33.50%，平均每对扩增出83条，其中9个组合扩增出与抗根肿病基因连锁标记。

Mixed drug and drench were used to evaluated the control efficacy of 10 kinds of fungicides on clubroot of Chinese cabbage by pot experiments. Three pharmaceutical drugs selected by potted experiment were carried in field experiment.

中文摘要：分别采用拌药法和灌药法，比较了10种供试药剂对白菜根肿病的温室防治效果，并对盆栽试验防效较好的3种药剂进行了田间药效试验。

The result indicated that 237 combinations amplified a total of 13 079 AFLP fragments with an average of 55 fragments, the average of 1.30 markers per 1 000 AFLP fragments were found to be linked to clubroot resistant gene; the amplified polymorphic fragments were 3 167 between the two parents, account for 24 percent of polymorphic frequency; the number of amplified fragments and the number of polymorphic fragments was in positive linear correlation; GC content of AFLP primer combinations significantly affects the number of amplified fragments and the number of polymorphic fragments, indicating negative linear correlation between them.

结果表明：平均每个组合检测到55条带，共扩增13079条带，平均每1000条带检测到1.30个根肿病抗性基因连锁标记；多态性带数为3167条，双亲间多态性频率约为0.24；扩增带数与多态性带数呈线性正相关，引物组合中的不同GC含量与扩增带数和多态性带数存在显著性差异，并表现出线性负相关。

A biocontrol strain, XF-1, was identified as Bacillus subtilis based on morphology, physiology, biochemistry and biotechnology, which could control clubroot of cruciferous crops effectively.

依据传统形态学、生理生化特征及16S rRNA基因序列，将一株对十字花科根肿病有很好防治效果的菌株XF-1鉴定为枯草芽孢杆菌。

Studied on effect and applied method of potassium permanganate ,calcareousness lime or plant ash and compost for control Plasmodiophora brassica .

选择高锰酸钾、石灰或草木灰、腐熟农家肥等有机投入品对根肿病的控制效果和施用方法进行了初步尝试。

Studied on effect and applied method of potassium permanganate, calcareousness lime or plant ash and compost for control Plasmodiophora brassica.

摘要选择高锰酸钾、石灰或草木灰、腐熟农家肥等有机投入品对根肿病的控制效果和施用方法进行了初步尝试。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。