查询词典 spur blight

The thickness of surface layer,thick angle tissue and vassular tissue were raised and the invasion and growth of Alternaria solani were hindered after applying K fertilizer,therefore the breaking－out time of the disease were delayed 3-4 d.Thus,the incidence of tomato early blight dropped.

32.0%和12%？22%。番茄茎角质层明显，厚角组织、维管组织厚度增加，占茎总横断面积比增大，细胞壁增厚，延缓茎发病时间3-4d，阻碍番茄链格孢菌的侵入和生长，使番茄早疫病发病率降低。

Biological characteristics of the pathogen and the resistance of 13 cultivars of tea plant to tea brown blight were studied by means of natural infection in the field and artificial inoculation in vitro. Resistant cultivars and susceptible cultivars of tea plant were divided. And the resistance mechanism was researched tentatively. The findings are as follows: 1 Some biological characteristics of the pathogenic fungus The experiment result showed: the optimum temperature for the growth of fungus mycelium was from 24 to 27℃, the optimum temperature for sporulation ranged 22 to 30℃. Treated at 54℃ in 10 minutes, the spores didn't germinate. The optimum pH for the growth of the mycelium was 5.1～5.9, the optimum pH for sporulation ranged 5.0～6.0. Light had no much effect on the growth of fungus mycelium, but had much effect on the reproduction of the spore.

首先，研究了茶云纹叶枯病病菌的生物学特性；其次，通过田间抗性调查和室内人工接种鉴定，对 13 个茶树品种进行了抗病性鉴定；第三，在前人研究的基础上，对茶树抗病机理作了更深入的研究，结果发现： 1 病原菌的生物学特性病原菌的分生孢子萌发的最适温度范围为 24～27℃，菌丝生长的最适温度范围为 22～30℃；致死温度为 55℃；菌丝生长的最适 pH 范围为 5.1～5.9，孢子萌发的最适 pH 范围是 5.0～6.0；光照对病菌生长速度及分生孢子萌发影响不大，但对其产孢的影响很大，特别是有光照与无光照处理之间差异显著，光照有利于分生孢子的形成。

In the experiment, the tea plant shoots were cultured in vitro, and inoculated artificially. The result showed the disease condition in vitro was basically consistent with that of the tea plantation in nature. Therefore, we thought this identification method of tea plant resistance to tea brown blight was feasible, especially a large number of cultivars.

本试验采用离体插枝培养法，人为造成伤口、人工接种并保湿对茶树品种进行抗性鉴定，室内人工接种与田间自然发病的情况基本一致，因此，可以认为此方法对茶树品种抗云纹叶枯病鉴定是可行的。

The colonization of the biocontrol strain on rice surface was closely related to the control effect of rice sheath blight.

同时生防菌在水稻叶片上定殖数量与水稻纹枯病的防效呈正相关的关系。

Thus, prevention and cure for rice stripe blight has become an important object in Shanghai farm.

因此，水稻条纹叶枯病的防治以成为上海农场的重要课题。

Rice stripe blight is a virus disease introduced mainly by Laodelphax striatellus Fallen. Rice stripe virus is a RNA virus and one of Tenuivirus members.

水稻条纹叶枯病是由水稻条纹病毒(Rice stripe virus，RSV)引起的一种病毒病，其传播介体主要是灰飞虱。

Aim at the influence factors about special field, cultivation system and cultivating level of rice in Shanghai farm, I studied characters of rice stripe blight occurrence on the Farm, investigated the disease resistance level and yield lose rate of different rice cultivars planted on the Farm, and made the suggestion about a synthetical control strategy for the disease in priority to adopt rice cultivars with resistance to the disease. Through investigation for the actuality of plant protection in Shanghai Farm and the examination of medicament for the disease, I gave an advice about the best chemical controlling method for the disease.

本研究的目的和方向：针对上海农场这一特殊地域因素、栽培制度、种植水平等因素的影响来研究农场水稻条纹叶枯病的发生特点；通过调查与试验上海农场不同品种的抗病性及产量损失，从而提出推广抗病品种的防治策略；通过调查与试验上海农场栽培制度下条纹叶枯病的发生特点，从而根据上海农场的特点提出综合防治的策略；通过对上海农场现有植保状况的调查与药剂试验，从而提出最佳化学防治方法。

Rice stripe blight occur only bits and pieces and didnt result in obvious harm from 2001 to 2003, and quantity of Laodelphax striatellus Fallen was very low and only in part place it was more serious.

从2001年至2003年条纹叶枯病一直处在零星发生状态，未构成产量威胁，灰飞虱的发生也一直处在低值状态，仅局部地方发生较重。

Along with increase of infecting area and diseased plant rate year after year, the harm of rice stripe blight reached peak in 2005 and resulted in serious rice yield reduction. Yield of Wuyujing series cultivars was reduced about the 50 percent and there was almost no any output in some farmland.

发病面积逐年上升和发病率逐年提高。2005年更是达到发生危害的高峰，造成水稻严重减产，武育粳产量损失达到50％左右，严重田块几乎绝收。

In the green asparagus field, the severest disease is Stem Blight, the next is Brown Spot.

绿芦笋病害以茎枯病为最严重，其次是褐斑病，间有萎凋病发生。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。