根腐病

The hyphae of root rot pathogen for Rhodiola sachalinensis can grow well from 20℃ to 30℃, pH 5. The conidiophore can burgeon very well from 25℃ to 35℃, pH 5 of the culture mediums in which include juice of Rhodila schalinensis, barm, glucose and cream of beef.

红景天根腐病菌菌丝生长适宜温度为 2 0～ 30℃，适宜 pH值为 5 ；分生孢子萌发适宜温度为 2 5～ 35℃，适宜 pH值为 5 ，在不同营养液里以红景天汁、牛肉膏、酵母汁、葡萄糖等的营养液中萌发良好。

More than 30 kinds of diseases and pests have been reported, but the damage of sweetpotato black rot, sweetpotato root rot, sweetpotato stem nematode and sweetpotato bacterial wilt is serious.

我国甘薯病虫害危害严重，已经发现报导的有30多种，其中发生比较广泛、为害比较严重的有甘薯黑斑病、甘薯根腐病、甘薯瘟病、甘薯茎线虫病。

Calcium cyanamide could inhibit the wilt and root rot pathogens and diseases; S-H mixture could only inhibit the wilt pathogen and disease, but lime had no effect.

氰氮化钙可抑制萎凋及根腐病菌及其引起之病害，SH混合物则仅抑制萎凋病，而石灰处理则毫无抑制作用。

Strawberry Root Rot is more and more important root disease,especially in continuous cropping fields.The whole strawberry garden can be destroyed when root rot is very serious.It has developed the important disease restrict industrial development.

草莓根腐病是草莓根部重要病害，该病近年来逐渐增多，严重时可造成整个草莓园区的毁灭，已成为草莓产业发展的重要病害，世界已报道的根腐病病原物20多种，是较难防治的土传病害。

In this paper,pathogen of strawberry root rot was identified and biological characteristics,pathogenicity,chemical control,enzyme activity were studied.

针对近年来草莓根腐病普遍发生并逐年加重的现状，本试验以草莓根腐病为研究对象，进行病原菌的分离鉴定、生物学特性研究、室内药剂筛选及不同品种的酶活性测定等试验。

In this paper, 1554 strains of bacteria were isolated from the soybean rhizophere in the different continuous systems. Those biocontrol bacteria were screened in vitro and in vivo. 6 strains of them had the better control efficacy. They exhibited the different antagonism to the pathogens of soybean root in vitro. The strains 18BR2-2 and 18BR9-1 showed a wide range of antagonism against Fusarium oxysporum, F. avenaoeum, F. solani and Rhizoctonia solani in vitro. The 6 strains exhibited different control efficacy to soybean root rot in greenhouse and in field. In greenhouse, they could decrease the degree of soybean disease significantly, and the control efficacy of 18BR2-2 was the best and can reach 45.90%. In theory, soybean treated by 18BR2-2 may postpone the days of outbreaking of disease for 6 days. The strain 18BR2-2 also promoted the growth of soybean seedling and, raising the soybean height for 11.24%, increasing dry weight for 40.91% and fresh weight for 35.27%.

本研究从长期连作田种植的大豆及其根际土壤中分离细菌1554株，采用平板测试、温室盆栽及田间试验等方法，筛选了对大豆根腐病菌(主要是尖孢镰孢菌Fusarium oxysporum)有很好作用效果的生防细菌6株，在离体的条件下均表现出不同程度的拮抗作用，其中生防细菌18BR2-2和18BR9-1表现出很广的杀菌谱，对大豆根腐病菌尖孢镰孢菌(F.oxysporum)、燕麦镰孢菌(F.avenaoeum)、茄腐镰孢菌和立枯丝核菌都有很好的离体拮抗作用，并且这6株生防细菌在盆栽和田间的情况下均表现出对大豆根腐病一定的防治效果。

On the inhibition to mycelial growth, the 95% ethanol extract had significantly inhibition to P. ultimum, F. oxysporum f. sp cucumber, R. solani and B. cinerea, and at the top treatment concentration of 0.002 g/mL, the inhibition rate reached to 60.32% 58.50%, 55.89% and 55.17%, respectively; But the 95% ethanol extract almost had no inhibition to S. rolfsii, its rate was just 17.19% at 0.002 g/mL.③On the inhibition to sprouting, the 95% ethanol extract had significantly inhibition to B. cinerea, R. solani, F. oxysporum f. sp cucumber and P. ultimum, and at the top treatment concentration of 0.002 g/mL, the inhibition rate reached to 95.24%, 90.48%, 89.47% and 85.71%, respectively; and the rate would exceed 40% to four fungi mentioned above when their concentration was not lower to 0.005g/mL. The 95% ethanol extracthad infirm inhibition to S. rolfsii, its rate was just 43.48% at 0.002 g/mL.

在抑制菌丝生长方面，鱼腥草95%醇提物对豌豆根腐病菌、黄瓜枯萎病菌、马铃薯立枯丝核病菌和大白菜灰霉病菌均有良好的抑制作用，在最高处理浓度为0.002 g/mL时抑制率分别达到60.32%、58.50%、55.89%和55.17%；对辣椒白绢病菌几乎没有抑制作用，在最高处理浓度为0.002 g/mL时抑制率仅为17.19%；③在抑制孢子萌发方面，鱼腥草95%醇提物对大白菜灰霉病菌、马铃薯立枯丝核病菌、黄瓜枯萎病菌和豌豆根腐病菌抑制效果明显，在最高处理浓度为0.002 g/mL时的抑制率分别达到95.24%、90.48%、89.47%和85.71%，且在处理浓度不低于0.000 5 g/mL时对以上4种真菌孢子的抑制率超过40%；对辣椒白绢病菌抑制作用较弱，在最高处理浓度为0.002 g/mL时仅为43.48%。

Object: In order to know the culture-filtrate producing condition of Fusarium solani isolated from Milkvetch root rot, mechanism of F. solani causing Milkvetch root rot, and to give theoretical support for screening resistant germ plasma via mycotoxin.

中文摘要：目的：为掌握黄芪根腐病菌毒素滤液产生条件和探讨黄芪根腐病菌致病机制，以及为利用毒素进行种质抗原筛选奠定理论基础。

This article elaborated Dingxi in the pea root rot research and the disease- resistant breeding progress,introduced the Gansu middle area pea root rot s main pathogenic bacteria is the root-rot syndrome which the eggplant fusariumFusarium solani(Mars Sacc,the pea silk pouch mildew and so on eight kind of cause of disease fungi compound invade dye cause.

论述了定西在豌豆根腐病研究及抗病育种的进展，介绍了甘肃中部地区豌豆根腐病的主要致病菌是茄镰刀菌Fusarium solani(MarsSacc、豌豆丝囊霉等8种病原真菌复合侵染引起的根腐综合症；通过选育抗根腐病品种是解决问题最经济有效环保的措施，先后培育出了不同生态类型的豌豆品种定豌1号到定豌5号，基本解决了生产中因根腐病导致的减产、绝收现象，这些品种在甘肃中部、宁夏南部的旱地农业生产中发挥了重要作用。

Seed treatment is and important measure to control root rot of soybean,but there were two problems: the first one was to have effective fungcide;the second was how to keep sufficient dosage on soybean seeds.

在防治大豆根腐病的研究中，通过种子处理防治大豆根腐病的研究，应是一个主要内容、但首先遇到的问题有二：一是有效的药物，二是能使大豆种子上带有足够药量的方法。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了