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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。

In Fagopyrum esculentum grown under different density and sowing date, there was significant plasticity in stem mass ratio, leaf mass ratio and leaf to root ratio, as well as single measures of stem length, stem diameter, branch length and number of branches.

在不同密度和播期下种植的荞麦，茎生物量分配、叶生物量分配、叶根比，及单株茎长、茎直径、分枝长和分枝数都有显著的可塑性。

Leaf sheath auricles oblong or falcate, petiole abaxially pubescent; leaf blade (7–)11–17 mm wide, abaxially pallid.

叶鞘的叶耳长圆形或镰刀形，叶柄背面具短柔毛；叶片(7-)11-17毫米宽，灰白色。

Methods:①Pharmacodynamics observed the effects of The root and leaf of Panicled Fameflower on swimming time of mouse, and physiological function, IL-2 IgA IgM IgG C3 C4 of rat of asthenia of the spleen, and The leaf of Panicled Fameflower on determinating mininal inhibitory concentration, swelling of mouse ear, capillary vein permeability of mouse skin, granuloma in rat.

①药效学实验：观察土人参根、叶对小鼠游泳时间的影响，以及对&脾虚&大鼠脾脏生理功能，细胞因子IL-2、IgA、IgM、IgG、C3、C4的影响，验证土人参根、叶&健脾&功效；观察土人参叶体外抗菌实验，对二甲苯致小鼠耳廓肿胀的影响，对小鼠皮肤毛细血管通透性增高的影响，以及对大鼠棉球肉芽肿的影响，验证土人参叶&解毒消痈&功效。

Stems angular, glabrous. Radical leaves: stipules brown, membranous, abaxially glabrous; petiole glabrous; leaf blade with 7–9 pairs of leaflets; leaflets petiolulate, green on both surfaces, fasciated or fasciated lanceolate, 5–7 × 1.5–1.7 cm, both surfaces glabrous, base subcordate to obliquely truncate or rounded, margin acutely incised serrate, apex rounded to acute; cauline leaves: stipules green, falcate, herbaceous, margin incised serrate; leaf blade resembling that of radical leaves but leaflets fewer and narrower higher up stem.

茎具角，无毛；胚根叶：托叶使成褐色，膜，背面无毛；叶柄无毛；叶片具7-9对小叶；具小叶柄的小叶，绿色在两面，扁化或者扁化， 5-7 * 1.5-1.7 厘米，两面无毛，基部近心形在斜截形或圆形，边缘尖锐锐裂状锯齿，先端圆形的到锐尖；茎生叶托叶绿色，镰刀形，草本，给锐裂状锯齿镶边；叶片象胚根叶的那但是高的更少和狭窄的小叶向上茎。

Leaf sheaths shorter than internodes, glabrous or infrequently tuberculate-hispid; leaf blades linear, 10–40(–70) cm × 3–9 mm, usually glabrous, sometimes tuberculate-hispid; ligule ca. 0.5 mm. Panicle open or somewhat contracted, 10–45 cm; central axis and branches scabrid; branches 5–20 cm, stiffly ascending or spreading, solitary or fasciculate, loosely spiculate; pedicels scabrid, apex usually with long stiff hairs.

叶鞘短于节间，无毛的或很少发生具糙硬毛具瘤；叶片线形，厘米×10-40(-70)毫米，通常无毛，有时具瘤具糙硬毛；大约0.5毫米圆锥花序的叶舌打开或者有点收缩，10-45厘米；主轴线和分枝粗糙；分枝5-20厘米，硬上升的或开展，单生或束状，松弛细刺；粗糙的花梗，有长的硬的头发的先端通常。

Leaf sheaths shorter than internodes, loose, pilose or glabrescent; leaf blades linear, flat or convolute, rigid, 15–30 cm × 5–8 mm, glabrous or hairy, apex finely acuminate; ligule 0.3–0.5 mm. Panicle usually contracted, dense, infrequently looser, 15–35 cm; central axis and branches scabrid-hispidulous; branches 2.5–10 cm, fasciculate in middle part, ascending; pedicels scabrid, apex often with stiff bristles.

叶鞘短于节间，松散，具柔毛的或后脱落；叶片线形，平或，硬质，15-30厘米×5-8毫米，无毛或有毛，好渐尖的先端；叶舌0.3-0.5毫米圆锥花序通常签合同，浓，很少发生松散，15-35厘米；粗糙主轴线和分枝具短硬毛；分枝2.5-10厘米，束状的在中部，上升；粗糙的花梗，顶经常有硬的硬毛。

Leaves opposite, occasionally alternate, rarely verticillate, fasciculate, or in a whorl; stipules usually present, often reduced to lines connecting petiole bases, sometimes reduced to petiolar ocrea or a connate leaf-sheath; leaf blade usually entire, pinnately veined or 3--7-veined from base.

叶对生，偶尔互生，很少轮生，束状，或者形成一轮；托叶通常宿存，通常退化成线，连接叶柄基部，有时形成托叶或者合生成叶鞘；叶片通常全缘，成羽状脉或脉自基部。

The leaf area of four plants increase gradually along as the light regimes decreases, and Fatsia japonica、 Laurus nobilisl increase more observably than the others, but the biggest incremental number of leaf area of four ground covers was under 6% daylight, under open site was the lowermost.

八角金盘、月桂随光强的减弱叶面积增加的幅度显著，南天竹在24％光强下和58％的光强下相差不显著，24％光强下稍显优势，金丝桃在3种光强下叶面积变化不大。4种地被植物的叶面积均以全光下的值最低，6％自然光下的值最高。

The leaf mass per unit area decrease gradually with the light regimes bringing down. The leaf of Fatsia japonica changes obviously, the other three species change obviously neither under 24%daylight or 6%daylight, but under 58%daylight dose.

四种植物的比叶重均随光照强度的减弱而减小，八角金盘的比叶重变化显著，其它三种植物的比叶重在24％自然光强下和6％自然光强下变化均不显著，但同58％自然光强下的比叶重相比，变化较显著。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。