病斑

落葵叶斑病斑上的病原菌孢子梗及孢子（A，B）。

Fig.2.Conidiophores and conidia of Alternaria alternata produced on leaf spot of Basella rubra ( A , B ) .

水稻叶片~（14）C同化物的累积与抗白叶枯病斑扩展的关系

Relationship between Accumulation of ~ ( 14 ) C-assimilates in Infected Leaves and Resistance to Xanthomonas campestris Pv . oryzae in Rice

从一些浅黄色突变株引起的病斑上获得的单孢培养菌中，野生菌株（WildType）色素的频率范围为10%～100%。

Lesions derived from some buff mutants given conidial cultures with wild type pigment at frequencies ranging from 10 % to 100 % .

第二步就是病斑分割，将通过选择合适参数的模糊C均值算法来实现。

The second stage is image segmentation , which includes adaptation of fuzzy c - mean algorithm parameters to fit the application in concern .

病健交界处Si相对含量小于病斑处而大于对照。这说明在病害发生和即将发生的位置Si的相对含量比较高；

These results showed Si relative content in the colony and diseased and health tissue was relatively higher .

一年生枝条上病斑越大，POD酶活性越高。

And the bigger the spot was , the higher POD activity was .

在致病性分析的样品中，仅有5个病斑分离的10个单孢菌株在所有鉴别品种上表现同源菌株有完全相同的致病反应，并且有完全相同的DNA指纹图谱带型；

The homogenous isolates from same lesion in 10 isolates from 5 lesions in the tested samples showed same pathogenic reaction on all differentials and same DNA fingerprints ;

一种基于Photoshop的叶片相对病斑面积快速测定方法

A Faster Method for Measuring Relative Lesion Area on Leaves Based on Software Photoshop

alternata损伤接种果实LOX活性，发现LOX活性变化与病斑扩展有关。

Alternata showed LOX activity was related with the spreading of lesions .

roseum病斑面积的扩展。B1悬浮液仅能抑制Fusariumsp.及T。

B1 autoclaved culture and cell suspension significantly reduced lesion area of Fusarium sp . and T.

研究了水稻白叶枯病单株平均病斑长与病原菌接种前后过氧化物酶活性变化值遗传相关与回归关系，遗传相关系数rg＝0.866。

The genetic correlation and regression between the lenght of lesions and peroxidase activity were studied .

没有检测到病斑数/叶的QTL，其表现为单基因或者寡基因控制的性状。

No QTL was identified NCBL lesion number per leaf , it was a trait that might be controlled by one or oligo genes .

烟草赤星病菌（Alternariaalternata）毒力变异机制及病斑扩展规律研究

Studies on Mechanism of Virulence Variation of Alternaria Alternata and Dynamics of Tobacco Brown Lesion Area Expansion

根据病斑大小、形状、颜色及产抱情况等特征，初步区分为抗病型（R）、感病型（S）和中间型（M）3种病斑类型。

Base on the shape , size , colour of spots and the number producing spores , three types of spot is differentiated by authors , i. e. resistant type , susceptible type and middle type .

由胡萝卜软腐欧氏菌ErwiniaCarotovora（Jones）Bergeey等引起的香榧细菌性褐腐病是危害香榧果实的一种重要病害，病斑呈褐色，常引起香榧落果而减产。

Bacterial brown rot caused by Erwinia carotovora ( Jones ) Bergey et al is an important disease in Torreya grandis Fort .

定位了玉米大斑病的病斑长、病斑宽和病斑面积的QTL分别为3、3、2个，其联合贡献率分别为581%、715%和275%。

Identified QTL of NCBL lesion length , width , and area were 3 , 3 , 2 , respectively . The combined contribution ratios of these QTL were 58.1 % , 71.5 % , 27.5 % , respectively .

高粱苗期病害主要是由立枯丝核菌（Rhizoctoniasolani）AG&5引起的土壤传染病害，该病害的病原菌土下分布状况可以通过病株、病斑的分布型间接地测定。

Sorghum seedling disease caused by Rhizoctonia solani is one of the soilborne diseases . The distribution patterns of pathogen in the soil could be determined indirectly with those of infected plants and lesions .

此外，木霉菌剂还促进玉米植株的生长，并诱导玉米产生对病原菌的抗性，其中T7处理诱导抗性最高，相对病斑面积仅为6.74%，明显小于对照。

Otherwise , Trichoderma strains stimulate plant growth , and induced resistance reactions in the host plant , among them the relative lesion area of T7 was only 6.74 % , much smaller than that of control .

离体和盆栽试验表明，草莓白粉病菌经38℃高温处理8h，分生孢子不能萌发；或每天38℃处理8h，适温下16h连续培养4d后病斑不再产生分生孢子。

Experimental results showed that the conidia of strawberry powdery mildew could not germinate at 38 ℃ for 8 hours and the pathogen sports could not produce conidia at 38 ℃ for 8 hours or 20 ℃ for 16 hours - 4 days in vitro and potted plant .

100mM硅酸钠能显著降低处理后3天挑战接种的马铃薯块茎病斑的扩展和处理后48小时接种的Fusariumsulphureum对马铃薯块茎切片的侵染能力。

Sodium silicate could induce potato tuber and its slice resistance to dry rot. Sodium silicate at 100 mM significantly reduced lesion expansion of potato tuber challenge inoculated 3 days after treatment and infection ability of Fusarium sulphureum inoculated on potato tuber slices 48 hours after treatment .

2399例过敏性皮肤病斑贴试验结果分析及临床意义

Analysis and significance of patch test in 2399 irritability dermatosis patients

结果表明，蟛蜞菊浸提液使植株变得矮小，生长缓慢，叶子枯黄，出现病斑和虫害；

The results showed that the water extract of Wedelia chinensis Merr .

植物黑腐病病斑的图像处理与自动检测

Image Processing and Automatic Detection of Leaf Spots of Crop Black Rot

玉米小斑病重要流行环节的初步定量研究Ⅰ.孢子萌发侵入、病斑潜育显症及扩展

Preliminary Quantitative Studies On Important Epidemic Links of Bipolaris maydis

基于计算机视觉的植物黑腐病病斑分析

The Analysis of Black Rot Spot Based on Computer Vision

在晒伤时，病斑发展缓慢。

In sunburn , the development of lesions is delayed .

在直射光与散射光照射下，病斑都能产孢。

Lesion can produce spores under either direct light or distributed light .

由浅黄色突变株引起的病斑中也可重新获得白色的变异物。

White variants were also recovered from lesions caused by buff mutants .

基于神经网络的大豆叶片病斑的识别与研究

Investigation and Recognition on Diseased Spots of Soybean Laminae Based on Neural Network

玉米大斑病病情发展及病斑扩展时间动态模型的研究

Studies on models of northern leaf blight lesion expansion with time in maize