多叶病

Results: The most common locations of PIP were at the margin of both lower lobes and associated with local pleural thickening and adhesion. The density of nodule in which CT attenuation value was 15~60 HU (26.9±13.5HU) was lower than that of PLC. Most of them were round/round-like and irregular in shape. The interior density of lesion was inhomogeneous. The presence of calcification or multiple cavitations, straight margin sign, hole sign and without hilar and mediastinal adenopathy were of great significance in the diagnosis of such kind of disease.

结果：炎性假瘤多位于两肺下叶，邻近胸膜增厚、粘连，病灶密度偏低（平扫CT值15~60HU，平均26.9±13.5HU），与周围型肺癌比较有统计学差异，其形态以圆形／类圆形和不规则形多见，病灶内密度多不均匀，可见钙化及多发空洞，边缘呈平直状、周围见毛玻璃样改变及肺门纵隔无淋巴结肿大等征象对本病的CT诊断有意义。

is: the use of a small amount of lime-style Bordeaux mixture (copper sulfate 0.5 kilograms, lime 0.175 kilograms, 50 kilograms plus water), or 50% carbendazim WP 1000 times, or 50% WPspraying 1000 times, to eliminate the ban and leaf anthracnose disease bacteria, 40 percent can be used 2000 times Rogor emulsion aphid virus eradication to prevent the occurrence of bunchy top disease

方法是：采用石灰少量式波尔多液（硫酸铜0.5千克，生石灰0.175千克，加水50千克）、或50%多菌灵可湿性粉剂1000倍液、或50%托布津可湿性粉剂1000倍液喷洒，以消灭炭疽病和叶班病病菌，可用40%乐果乳剂2000倍液消灭带毒蚜虫，预防束顶病的发生。

The local lesion assay indicated that: contacted with TMV infected leaf juice dilution over 12 h, the disinfestants whose inactivation ratio of TMV above 80% are as follows: 7% sodium hypochlorite at 10 μLL^(-1), 30% chloride of lime at 15 mgL^(-1), 40% Yubao at 75 μLL^(-1) and 98% potassium permanganate at 20 mgL^(-1), 10% chlorine dioxide at 25 mgL^(-1) inactivation ratio of TMV less than 50%.

结果表明，与TMV病叶汁液2万倍稀释液接触12 h，体积分数7%有效氯次氯酸钠10μLL^(-1)、质量分数30%有效氯漂白粉15 mgL^(-1)、体积分数40% N-羟乙基亚甲胺多聚物75μLL^(-1)和质量分数98%高锰酸钾20 mgL^(-1)对TMV的抑制率高于80%，质量分数10%二氧化氯粉剂25 mgL^(-1)对TMV的抑制率低于50%。

I have engaged in the research of rice stripe blight control for many years in Shanghai farm and found some problems: though there were some reports of research on rice stripe blight resistance, strategy of prevention and cure for the disease has been face to farmer mainly, while geographical location, cultivars and cultivation system adopted on the Farm all affect the effect of control. On the other hand, our Farm has paid attention to the chemical prevention and cure for rice stripe blight and ignored other measures. As for the chemical prevention and cure, phenomenon of drug-resistance and bad effect of prevention and cure existed usually.

本人在上海农场多年从事该课题研究过程中发现的问题：目前对水稻条纹叶枯病研究的报道较多，在防治对策上主要是针对农户，缺乏关于农场地域因素、品种、栽培制度等因素对水稻条纹叶枯病发生及防治的影响的报道；在水稻条纹叶枯病的防治上，农场仍是以化学防治为主，对其他防治措施还不够重视；在化学防治过程中，存在抗药性、防效不佳等问题。

The results showed that the 20 cultivars could be clustered into 4 groups based on their resistances to C.truncatum, among which ProINTA Patricia and Victoria SPI were the best, but Defi, Lobo, Salado, Xinjiang large-leaf and Travois were the weakest, while the other 13 cultivars had medium resistance to C.truncatum.

结果表明，不同品种抗苜蓿炭疽病能力的强弱不同，通过聚类分析将供试品种划分为4个类群，以ProINTA Patricia和Victoria SPI对苜蓿炭疽病的抗性最好，Defi德福、Lobo路宝、Salado萨兰多、新疆大叶苜蓿和Travois的抗病性最差，其他品种呈中等抗性。

Thin leaf section were prepared from fresh tissues of YS-lnfected and healthy citrus plants, when observed under a fluorescence microscope (Type, Olympus AH-FL-2), a yellow fluorescence was distinctly observed in the YS-infected phloem tissues and not in the phloem tissuses of healthy plants and of those infected with tristeza, exocortis, canker, scab, greasy...

将健叶和黄龙病叶叶柄用保险刀片徒手切片，在透射式荧光显微镜下检查，可看到健叶叶柄的木质部导管细胞壁发黄色荧光，韧皮纤维细胞发绿色荧光，而病叶叶柄韧皮部中有1～多个鲜明的黄色或黄绿色荧光团块。这种特异性的荧光，在健叶柄韧皮部中是没有的，其它由病毒、类病毒、细菌、真菌等病原引起的病叶柄韧皮部中亦没有此种特异性荧光。

The results showed that:(1)IRBB21 was resistant to all the strains except T7147,astrain from Japan belonging to the Japanese racial group 2,whereas Minghui 63 and 6078 weremoderately susceptible to most of the strains tested;(2) The resistance reactions of the hybrids derivedfrom IRBB21 appeared to be the same as that of IRBB21,whereas that of the hybrids derived fromMinghui 63 and 6078 were more susceptible to BB than the two restorers.

结果表明，IRBB21除不抗日本的T2菌系群外，对所有其它供试菌株均表现高抗，恢复系明恢63和6078对供试菌株多为中感，以明恢63或6078配组的杂交稻的抗性极差，而源于IRBB21的杂交稻的抗性与IRBB21基本相同，因而证实Xa21基因确为在我国极具应用价值的抗性基因，完全可以用于杂交水稻的白叶枯病抗性改良。

As the development of molecular biology and relative techniques, many tomato genes for resistance to Cladosporium fulvum have been identified and cloned, some have been already used in molecular breeding, which provide a new approach for efficiently controlling the disease.

随着生物技术的发展，已有多个抗性基因被鉴定和克隆出来，有的已经被利用在分子育种上，这为生产上有效控制番茄叶霉病病害提供了一条新途径。

The physiological and biochemical resistant mechanism of tea cultivars to tea brown blight caused by Guignardia camelliae. Making use of the mensuration of spectrophotometric analysis to study the enzyme activity of Peroxidas, Polyphenol Oxidas, Catalas, Phenylalamine Ammenia-lyase. The result showed that there was definite difference to the metabolic rule of defence enzymes activity in the annual leaf tissue of the resistant and susceptible cultivars after infecting.

茶树抗云纹叶枯病的生理生化机理研究利用分光光度计对茶树叶片中过氧化物酶、多酚氧化酶、过氧化氢酶，苯丙氨酸解氨酶的活性进行了测定分析，结果表明：感染茶云纹叶枯病菌前后，抗病品种和感病品种当年生成叶中防御酶活性变化规律存在一定的差异。

YaJin-4: 138-day growth period in Beijing, tight ear, red shell and red grains, 340centimeters high, stem diameter of 1.95cm, succulent and sugar Brix of 21%, light leaf disease; Per-mu stalk yield of 5300kg, per-mu grain yield of 400kg.

雅4号甜高粱，北京生育期138天，纺锤形中紧穗，红壳红粒，平均株高340厘米，茎粗1.95厘米，茎秆多汁，含糖锤度21％左右，叶病轻。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐