叶斑

The ovum, the larva ,pupa and development starting point temperature of the whole generation respectively are 8.5℃, 9.8℃, 10.2℃, 10.4℃ in cineraria, effective accumulated temperature 52.7、 75.8、 158.5、

在瓜叶菊上采集的美洲斑潜蝇卵、幼虫、蛹和全世代的发育起点温度分别为8.5℃、9.8℃、10.2℃、10.4℃，有效积温分别为52.7、75.8、158.5、262.2日·度。

The diseased leaf rate and the disease index were related closely to temperature, humidity and illumination etc. The study also showed that the conidium germinating of Pestalotiopsis versicolor started after inoculated for four hours and germinated well at pH5 to pH7. In addition, there was great appetency between the pathogen and the tea trees because the conidia germinated well on tea leaves rather than other habitats obviously.

在茶树叶面上，病原菌分生孢子萌发明显比非叶面条件下好，病原菌菌丝生长较快，说明此病原菌与茶树叶片有高度的亲和力和较强的适应茶树叶面微环境的能力；茶树轮斑病病原菌分生孢子在pH5~7范围内萌发及芽管伸长较好，pH过小或过大均不利于病原菌的分生孢子萌发和菌丝生长。

The experiments of diapause induction showed that both short daylength and low temperature were major factors of diapause induction in T.

诱导滞育实验表明：短日照和低温是诱导二斑叶螨发生滞育的主要因子。

This paper extracted and analysed 11Math-Mophological Features such as Area, Perimeter, X-Length, Y-Length, Shape-Parameter, Lobation, Sphericity, Circularity, Roundness, Eccentricity and HoleNumber. Based on 40 species of insects which belonging to 8 Orders, 25 Families. And then ranks the accountability of 11 features each in insect identification while assessing their implication to insect taxonomy on levels of Order, Superfamily, Family and Species. More than those, also describes the kinship among the insects of various categories within the same level from the perspective of mathematical morphology through cluster analyses.

论文对隶属于8个目25科的40种昆虫利用计算机视觉技术进行了自动鉴别研究，从昆虫图像中提取和分析了这些昆虫的面积、周长、横轴长、纵轴长、形状参数、叶状性、球状性、圆形性、似圆度、偏心率、亮斑数等11项数学形态特征，并分别探讨了在目、总科、科及种分类阶元上这些数学特征在昆虫分类中的应用可能性和可靠性，利用聚类分析从数学形态学角度对所涉及到的同阶元昆虫类群的亲缘关系做了描述。

CT appeared patch,small node,light lobulation,peripheral vessel convergence,pleural indentation sign.

CT表现为斑片状、小结节状、轻度分叶状肿块，小毛刺、血管集束征、胸膜凹陷征，大多直径在1.5～2 cm。

There were different leaves structure between resistant and susceptible cultivars, the leaves structure studied included thickness of leaves, No.of palisade tissue, density of palisade tissue, thickness of the first line palisade cell, thickness of the second line palisade cell, density of inter-epidermal cell and density of exter-epidermal cell.

对大豆灰斑病抗病品种和感病品种的叶片组织结构，主要包括栅栏组织层数、栅栏组织密度、上下表皮细胞密度、蜡质含量及叶比重等，进行了比较研究。

The part of a historical period is single, be born on stem tuber, petiole grows 8 ～ 25cm, constant purple or green have violet spot, in mid and the following give birth to one bead bud; Form of form of egg of shape of blade long circle, egg of long triangle shape or form of heart shape halberd, grow 20cm of 5 ～, wide 3 ～ 8cm; Tip is long gradually pointed or submit end form sometimes, base form of ministry deep heart, often be above sinuosity have 1 bead shoot, above green, often take below lilac, whole reason, side arteries and veins feather shape, combination is in in close brim.

叶单一，生于块茎上，叶柄长8～25cm，常紫色或绿色具紫斑，在中部以下生一珠芽；叶片长圆状卵形。长三角状卵形或心状戟形，长5 ～20cm，宽3～8cm；先端长渐尖或有时呈尾状，基部深心形，常在弯曲处上面有1珠芽，上面绿色，下面常带淡紫色，全缘，侧脉羽状，在近边缘处联合。

In the Taidong County pond the township paddy rice two term sent the unboiled water in the Republic of China 95 years to stick the insect harm, 97 years one term is for the first time has the spot to fly a louse and the Hu hashish dry sickness harm, the paddy rice sticks the insect for quite to be rare but already the harmful insect which based in Taiwan's paddy field.

台东县池上乡水稻在民国95年二期作首次发生水到粘虫危害、97年一期作则是发生斑飞虱及胡麻叶枯病危害，水稻粘虫为比较罕见但已经在台湾的水稻田立足的害虫。

Heilongjiang Forest Botanical Garden, Harbin 150040, Heilongjiang, China Abstract: Using growth rate and hanging drop methods, biological activity of four acetone extracts from Sophora flavescens Ait., Galinsoga parviflora Cav., Typhonium giganteum Engl., and Datura stramonium L.

黑龙江省森林植物园，黑龙江哈尔滨 150040 摘要：采用生长速率法和悬滴法测定了苦参、牛膝菊、独角莲、蔓陀萝4种植物的丙酮提取物对水稻恶苗病菌、稻瘟病菌、玉米小斑病菌、玉米弯孢菌叶斑病菌、番茄叶霉病菌和辣椒根腐病菌的生物活性。

ReMV causes necrotic lesions on hosts such as Nicotiana glutinosa, Nicotiana rustica, Datura stramonium, Chenopodium quinoa, Chenopodium amaranticolor and Tetragonia expansa and causes systemic mosaic on hosts such as Nicotiana tabacum L, Nicotiana tobacum CV. K326, Lycoporsicon .esculentum and Brassica pekinensis.

对ReMV在寄主植物上的症状表现进行了测定，结果表明，ReMV可以侵染茄科、番杏科、十字花科和藜科等4科10种植物，其中在茄科的心叶烟、黄花烟、蔓陀罗；番杏科的番杏；藜科的苋色藜和昆诺藜上表现为局部枯斑症状。

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