叶斑

The main results were as follows: 1.After being radiated with 60 Co-γ, seven types of mutated plants were obtained through morphologic observation on the aftergrowth of the regeneration plantlets. The mutation characters included the purple leaf vein and petiole, the spotted leaf, the strumae leaf, the acerose leaf, the tender stem, the leaf shape variation, and the leaf color variation.

通过60 Co-γ射线诱变处理后的再生植株试管苗阶段的形态学观察，共获包括紫色叶柄、斑叶、瘤状叶片、细长叶片、茎杆细小、叶型变异、叶色变异的7种不同类型的变异植株。

This disease basically is the backbone branch that kills pear tree, come on earlier bark appearance does not have apparently ill spot, from the place such as leather aperture, cicatricle, cut oozy rust lubricious drip or water having rust is abrupt and oozy, right now only useful knife cuts cerebral cortex, just see cerebral cortex show damask have Brown flyspeck or hematic filiform streak, corrupt skin is loose fill water, have lees taste, embedded and many bacterium.

此病主要为害梨树的骨干枝，发病初期树皮外表无明显病斑，从皮孔。叶痕。伤口等处渗出锈色水珠或有锈水忽然渗出，此时只有用刀削开皮层，才可见皮层呈淡红色并有褐色小斑或血丝状条纹，腐皮松软充水，有酒糟味，内含大量细菌。

The region between the circular brown band generated by cell lipid exosmosis and the band of the wound in the non-transgenic cotton Z35's leaves, is wider than that of the transgenic cotton T-34's leaves, and no micro-HR was found in Z35, the intensity of leaves wilting is much serious, by contrast, micro BR was found around the wound region within the transgenic cotton leaves inoculated with the pathogen, but the micro-HR was not found in the transgenic cotton treated with water and around wound region of non-transgenic cotton Z35 leaves which showed that there was micro-HR defence in transgenic hpa1xoo cotton.

棉花黄萎病菌侵染叶片后，非转基因棉花叶部伤口周围细胞无微过敏性反应，受病原菌侵染的叶片萎蔫程度较重；转hpa1xoo基因棉花叶部伤口周围细胞有微过敏反应，叶部刺伤处仅有较小的坏死斑，且不相连，发病较轻，而清水处理的转基因棉花与非转基因棉花叶片中伤口周围均无微过敏反应，说明病原菌侵染诱导转hpa1xoo基因棉花产生微过敏防御反应，转hpa1xoo基因棉花较非转基因棉花有较强的抗病性。

Ground upside is a cervical bud death, rely on lateral bud to grow only, ministry of young Xie Quan or share die, sometimes flocculus radical ministry or complete Xie Chenggong are brown.

地上部是根颈部的芽死亡，只靠侧芽生长，幼叶全部或部分死亡，有时小叶基部或全叶呈红棕色。⒋柑橘缺钙症叶片主脉及叶缘四周褪绿，以后褪绿处产生枯斑脱落，枝条顶端向下枯死。

Since the mine is serpentine with frass alternatively at each side, the mines only occur on the surface of the leaves, and the larva is golden-yellow maggot, the miner is Lriomyza sativae .

图1。 豇豆上的潜道和潜叶虫(图1e中的黄色小虫)，根据蛇形潜道，粪便在两侧交替排列，潜道仅出现在叶正面，和幼虫特征，潜叶虫种类是美洲斑潜蝇。

The Northern Leaf Blight of Corn is one of the important leaf diseases of corn in the world.

玉米大斑病是世界各地玉米的重要叶部病害，玉米大斑病菌所产毒素既是玉米大斑病菌的主要致病因子，又是诱导植物防卫反应的激发子。

TWO NEW SPECIES OF THE GENUS MIMOTETTIX FROM CHINA HEMIPTERA, CICADELLIDAE, EUSCELINAE

薄如轻纱的蝇翅。2。中国斑翅叶蝉属二新种记述半翅目，叶蝉科，殃叶蝉亚科

The typi ca1 symptom j s fold and b1 istering, even d istortj on, 1ops i ded j -- eaf, shorti ng p ant, there are motley with 1ight green and deep green, and some of the motey are ye1wt MM 1eave M tny: the i.1--1ed has arias mosai c, 1ops i ded, and the tissue of the i11--1eaf has deteriorated exceeding1y, with s1ender pteridophyte 1.eaves, i l1 p1ant is green--yeI 1ow, obvious1y shortened in joint, the who1e p1ant serious1y shortened and grows thickly.

南瓜病毒病的典型症状为皱缩有疱斑、甚至扭曲，病叶畸形，植株矮化；花叶叶片上出现淡绿色和深绿色相间的斑驳，有的斑驳明显黄化；蕨叶丛枝型：病叶不但严重花叶、畸形，而且叶肉组织极度退化，纤细呈蕨叫叶状，病株黄绿色，节间明显缩短，整个植株严重矮化丛枝状。

The shade culture may reduce the occurrence probability of the sealwort spot leaf effectively, it is lightest by 40% diaphanous cultivation, preventive effect reaches 68.4%.

遮光栽培可有效减轻黄精斑叶的发生，以40%透光栽培黄精斑叶最轻，防效达68.4%。

The major dominant species of predatory enemies were Erigonidium graminicola and Theridion octomaculatum and their individuals were 81.4 percent of the total predatory enemy individuals of the community.1.2 Spatial patterns and their dynamics of major dominant predatory enemies ofarthropod communityThe research results showed that Pieris rapae distributed mainly on heart leaves and back of inner leaves of cabbage plants, Plutella xylostella distributed mainly on the back of cabbage leaves and Lipaphis erysimi distributed widely in cabbage plants. Among the major dominant species of predatory enemies, Sitticus sinensis distributed mainly on the front of leaves of cabbage plants in spring cabbage fields, and Misumenopos tricuspidata and Propylaea japonica distributed widely in cabbage plants.

在捕食性天敌中蜘蛛10种，捕食性昆虫3种，主要优势种为草间小黑蛛、八斑球腹蛛，其数量占捕食性天敌总数量的81.4%。1.2节肢动物群落主要优势种的空间格局及其动态研究结果表明，害虫优势种菜青虫主要分布于甘蓝心叶和甘蓝叶反面，小菜蛾主要集中分布在甘蓝叶的反面，而菜蚜在甘蓝植株内的分布较广；春甘蓝田捕食性天敌优势种中华跃蛛在外层叶正面分布较集中，三突花蛛与瓢虫类在甘蓝植株内的分布较广。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。