无叶的

The results showed that plant height increasing speed was significantly slow at the former and middle stage when K level was above 180 kg/hm2.On the contrary,the height of case-hardened plant improved markedly.When the K level was above 135 kg/hm2,the stem girth and maximal leaf area differed significantly as compared with CK,so did LAI.Yield and product value per unit area took the first place when 180 kg/hm2 potassium was used.Average price and proportion of middle and first grade tobacco leaf of 225 kg/hm2 potassium treatment were the highest as compared with other treatments and CK.Four economic characters of the two treatments differed at obvious significant level as companied with CK.The total sugar and K2O were increased,nicotine, total N,protein and Cl- were decreased with increased K levels.The potassium lacked symptom was alleviated with increased K levels,no symptoms was observed when 180 kg/hm2 potassium was used,the degree of weather infected fleck was decreased when the K levels was increased.

结果表明，在烟株生长前中期，当施钾量达到180 kg/hm2以上时，株高增长显著变慢，而定型株高则显著增高；茎围和最大叶的面积在施用135 kg/hm2以上的处理与CK之间的差异性达到极显著水平，叶面积指数也存在显著差异；单位面积产量和产值以施用180 kg/hm2的处理居首位，中上等烟比例和均价以施用225kg/hm2的处理最高，这两种处理的以上4个经济性状与CK之间存在极显著性差异；烟叶中的总糖和K2O含量随施钾量的增加而上升，烟碱、总氮、蛋白质和C-含量则下降；缺钾症状随施钾量增加而减轻，至施用180kg/hm2时已无缺钾症状；烟叶气候斑的发生程度也随施钾水平的提高而减轻。

Petals 2.5-3.5 × 1.5-2 mm, narrowly obovate, pink; base of median filaments slightly dilated, not appendaged, 0.2-0.3 mm wide; leaves glabrous or rarely sparsely pilose; trichomes on inflorescence rachis obsoletely branched

花瓣 2.5-3.5 * 1.5-2 毫米，狭倒卵形，粉红色；膨大的中间的花丝稍，无附属物，0.2-0.3毫米宽的基部；叶无毛的或很少疏生柔毛；在花序轴不完全地上的毛状体分开 2 H。

Leaves trifoliolate; lateral leaflets subsessile, petiolule of terminal leaflet 2-4 cm; leaflet blades oblong-lanceolate to elliptic, 5-10 cm, subcoriaceous, glabrous or densely pubescent on abaxial surface when young and pubescent along veins when mature, green adaxially, pale green abaxially, lateral veins 7-10 pairs, base obtuse to rounded, sometimes oblique on lateral leaflets, margin serrulate with hard teeth, apex narrowly acuminate.

叶具三小叶；近无柄的侧生小叶，顶生小叶的小叶柄2-4厘米；小叶叶片长圆状披针形的到椭圆形，5-10厘米，近革质，在背面上幼时无毛的或密被短柔毛的，成熟时短柔毛沿脉，正面绿色，背面浅绿色，侧脉7-10对，基部钝到圆形，有时在侧生小叶上斜，边缘细锯齿具硬齿，先端狭渐尖。

The characteristics of clonal growth and resources sharing were important to keep stability of community. The transpiration and the stomatal conductance of stolon with and without adventitious roots were same. But the water potential of stolon without adventitious roots was higher than that with adventitious roots.

臭柏克隆生长和资源共享特性在维持群落稳定中起着重要作用，来源于同一上级枝的匍匐茎，有不定根的和无不定根的日平均蒸腾速率和气孔导度没有差异，但无不定根匍匐茎的叶水势比有不定根的高。

In the rice leaves infected by RDV Yunnan isolate, the distribution of cells full of virus particles formed a belt which was a center of infection and multiplication of virus, around the cells fall of virus particles were some cells with the different extent of lesion as follows: disappearance of membrane system of chloroplasts, there were virus particles in some chloroplasts, and some sine or assembled virions in the mitochodria or cytoplasma but not in nuclei ,and intact subcellular structure in the cell far away from the infected center; In the rice leaves cell infected by Zhejiang isolate, some cells were full of virions, but the distribution of cells didn't form the belt, other cytopathological characters were similar to the cells infected by Yunnan isolate.

RDV云南分离株浸染的水稻叶片中，充满病毒粒体的细胞呈条带状分布，呈现出明显的侵染和增殖中心，在充满病毒粒体的细胞周围，相邻细胞有不同程度的病变，叶绿体膜系统消失，部分叶绿体中含有病毒颖粒，线粒体残体及细胞质中有分散或聚集的病毒粒体，细胞核中未见病毒粒体，离侵染中心较远的细胞中亚细胞结构较完整；RDV浙江分离株侵染的水稻叶片中，部分细胞充满病毒粒体，无明显的条带状分布，其他细胞病理特征与RDV云南分离株侵染的水稻叶片相似。

Leaves 3 or 4(–8) per ultimate branch; sheath densely deciduously setose; auricles readily deciduous, falcate; oral setae radiate, purple, ca. 3 mm; ligule prominent, ca. 5 mm; blade lanceolate, 10–23 ×(1–)2.5–3.3 cm, secondary veins 7- or 8-paired, abaxially yellow-green and white tomentellate, adaxially light green and glabrous, base asymmetrically cuneate, margins serrulate.

每末级的分枝的叶3或4(-8)；鞘浓密具刚毛的脱落的；叶耳容易落叶，镰刀形；口头的刚毛辐射状，变紫，约3毫米；杰出的叶舌，约5毫米；叶片披针形， 10-23 *(1-)2.5-3.3 厘米，次脉7-或8配对，背面的黄绿色和白色短绒毛，正面和无毛的淡绿，不对称的楔形的基部，边缘有细锯齿。

MS medium equipmented with different kinds and concentrations of phytohormones were used to induce and subcultrue of calli from suaeda salsa L.

mg/ L上培养出盐地碱蓬的无菌苗，然后在 MS基本培养基中添加不同的激素种类及浓度配比，对所培养的无菌苗的下胚轴和叶进行愈伤组织的诱导与继代。

This article mainly deals with Cr's pollution affecting the content of Cr,K,Mg,Fe,Mn,Zn,Cu,Mo in floating and underwater leaves of Trapa bispinosa .

研究 Cr6 +污染后菱浮水叶和沉水叶中 Cr、K、Mg、Fe、Mn、Zn、Cu、Mo元素的含量，结果显示：Cr含量随培养浓度的上升而上升，K、Mg随培养浓度的上升而下降，Fe含量随培养浓度的上升而出现先上升后下降，Mn、Zn、Cu、Mo与 Cr6 +的培养浓度无明显的相关关系。

On bright ,calm days they lie in thousands on the now darkening water,mostly yellow flotillas of popular,floating continuously down from great trees that themselves shake in the windless air with the sound of falling water,but on rainly days or after rain they seem to swim or be driven away,and nothing remains to break the surface except the last of olive-yellow lily pads that in high summer covered every inch of water like plates of emerald porcelain .

在晴朗无风的日子里，树叶成千上万聚集在颜色转暗的湖面上，这黄色的如同小舟一般的落叶--大多数是白杨树叶---纷纷从那些即始无风也抖动不已的高树上飘落下来，淅淅沥沥，仿佛水声，但是遇上雨天，它门又漂得无影无踪，于是，除了那在盛夏时节宛如盏盏翠莲把湖面覆盖而如今只是一片橄榄黄的睡莲残叶

In SGK321 with expression of CpTI and Bt insecticidal protein genes, both petal and leaf showed significantly higher insect resistant activity than bud and boll heart.

结果表明：7月中旬两种转基因抗虫棉抗虫效果均较好，尤其是CpTI-Bt棉棉叶和花瓣对4龄幼虫3天内致死率为92%以上；8月中旬两种转基因棉的抗虫活性均明显降低，且Bt棉的杀虫活性显著低于CpTI-Bt棉，其幼虫死亡率与对照受体棉中16的死亡率之间无显著差异，仅显著抑制了幼虫的生长；石远321(SGK321受体品系)的花瓣具有一定的抗虫活性，可显著降低取食幼虫的体重，甚至造成部分幼虫死亡；CpTI-Bt棉中，花瓣和棉叶的抗虫性明显高于蕾和铃心。

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。