查询词典 leaf spot

Reported diseases include crown gall, bacterial wilt, little-leaf, seedling blight, angular leaf spot, leaf spot, brown spot, leaf rust, grey mold, shoot blight, stem canker, and butt rot. Several non-infectious diseases including the leaf red spot, gummosis, herbicide in jury, typhoon damage and genetic albinism and an unidentified leaf crinkle disease are also described.

报告之桉树病害包括癌肿病、青枯病及小叶病等细菌注病害；苗腐病、角斑病、叶斑病、玫瑰桉叶斑病、叶锈病、灰霉病、褐斑病、枝枯病、溃疡病及冠腐病等真菌性病害；此外非病原性病害包括红斑病、流胶病、除草剂药害、风害及遗传性白化症等，以及病因不明之尾叶桉皱叶病亦在文内叙述之。

It induced gene technology, the activation of plant disease resistance genes, with strong absorption,good, long duration of field crops, fruit trees, vegetables, turf and ornamental plants on a variety of real, bacterial diseases, mycophenolatedisease, disease, anthracnose, Fusarium wilt, bacterial angular leaf spot, leaf spot and rot, soft rot, seedling damping-off, or damping-off with the treatment and eradication of the role of the effect of HIV disease are also significant.

它采用基因诱导技术，激活植物抗病基因，内吸性强，速效性好，持效期长，对大田作物、果树、蔬菜、草皮及观赏植物上的多种真、细菌病害，如霜霉病、疫病、炭疽病、枯萎病、细菌性角斑病、叶斑病黑腐病、软腐病、幼苗猝倒病或立枯病具有治疗和铲除作用，对病毒病效果也比较显著。

The Leaf spot is one of important diseases in golf courses. It causes leaf spot and leaf blight on many species of grasses, and can influence sights and destroy quality of grasses.

叶斑病是发生在高尔夫球场草坪上的一种重要病害，主要引起多种草坪草的叶斑和叶枯，严重影响草坪景观，破坏草坪质量。

Eight sets of SPOT satellite images, covering nine years from 1994 to 2002 and equivalent to eight months, were used to monitor seasonal changes in the normalized difference vegetation index over the Mt. Huangzui area in the Yangminshan National Park of northern Taiwan. The grey system theory was applied to analyze the degree of contribution of the five climate factors on NDVI of four major vegetation types Axonopus affinis, Miscanthus foridulus, Eurya crenatifolia and broad leaf vegetation.

本研究应用九个年度涵盖四季分布在八个月份之SPOT卫星遥测资料，监测阳明山国家公园磺嘴山植生指数(normalized difference vegetation index， NDVI)之季节性变化；并以灰关联理论分析五种气候因子（即累积降雨量、平均相对湿度、日照率、平均气温、与累积全天日射量）对类地毯草、五节芒、假柃木及阔叶林的卫星遥测植生指数之灰关联性。

The pathogens of maize gray leaf spot, Cercospora zeae-maydis, overwinteres in maize debris positioned on the soil surface under the arid condition and do not survive in leaf tissue buried below the surface.

玉米灰斑病病原菌在干燥条件下，能够在地表的病残体上安全越冬。

The slices of pear leaf samples infected by apple chlorotic leaf spot virus were prepared for situ RT-PCR and were detected by primed in situ labeling technique using special primer.

选用带苹果褪绿叶斑病毒的香梨叶片，制备成适合进行原位RT-PCR的石蜡切片。

Apple chlorotic leaf spot virus and Apple stem grooving virus are economically important pathogens for commercial rosaceous fruit trees.

苹果黄化叶斑病毒(Apple chlorotic leaf spot virus)和苹果茎凹陷病毒(Apple stem grooving virus， ASGV)为感染蔷薇科果树并引起经济危害之重要病原。

Therefore, Alternaria is the main pathogen of cotton leaf spot. 2. Pathogenicity test of the above-mentioned 26 strains showed that they are the cotton leaf spot pathogens as the eumycetes isolated from the Invasived plants are the same with the pathogenetic strains.

根据科赫氏法则从接种发病植株叶片上分离病菌，其形态特征与从自然发病植株上分离的相同，证实这些菌株就是棉花叶斑病的致病菌，其中链格孢属是棉花叶斑病的主要致病菌属 3。

The progress levels of symptoms after pathogen infection showed that interaction of gray leaf spot pathogen and host has differentiation or polymorphism. The progress levels of symptoms is different.The aggressively has polymorphism. The pathogenicity of different isolates in same cultivar has polymorphism, or the host reaction type of same isolate in different cultivars has polymorphism.The host reaction type has differentiation. There are seven types of host reaction in cultivar and inbred after infected by GLS pathogen:Rectangular lesion without chlorotic halo, Rectangular lesion with chlorotic halo,Irregular lesion without chlorotic halo,Irregular lesion with chlorotic halo, Spot lesion with chlorotic halo,Rectangular and irregular lesionand Rectangular and spot lesion. The host reaction type is coalesced lesion when disease severely. Frequency of each reaction types is different.

通过对玉米灰斑病菌侵染后的显症过程的系统观察，可在组织水平上说明该病菌与寄主互作反应存在分化或多样性：玉米灰斑病菌不同菌株侵染后显症过程表现出明显的差异；玉米灰斑病菌在侵袭力上存在多样性，菌株间对同一种品种的致病性表现多样化，或者同一菌株对不同品种侵染引起的寄主反应表现为多样性；病斑反应型的分化，玉米灰斑病菌侵染玉米品种或自交系后，主要有7种病斑反应类型，即RH型、RN型、IRH型(不规则形具褪绿晕圈病斑)、IRN型(不规则形无褪绿晕圈病斑)、SH型、RI型(长矩形与不规则形混合病斑)和RS型(长矩形与斑点形混合病斑)，若发病严重，病斑连成片，而且这些反应类型出现的频率也不同。

Identification of disease and pest resistance was done by Institute of Plant Protection, Hebei Academy of Agricultural Science, and the variety demonstrated resistance to southern blight leaf; mid-resistance to stalk rot, corn Curvularia leaf spot; high resistance to northern blight leaf, corn smut, corn dwarf mosaic; and sensitive to corn borer.

项目简介：中单808由中国农业科学院作物育种栽培研究所选育，生育期126天左右，株高314cm左右，穗长21.8cm，2004年河北省农林科学院植物保护研究所抗病鉴定结果：抗小斑病，中抗弯孢菌叶斑病，茎腐病，高抗大斑病，瘤黑粉病，矮花叶病，感玉米螟。2005年西南生产试验中平均亩产571.29kg，比对照增产17.85%。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失