茎

Leaves both basal and cauline, cauline leaves 2--4, inserted at middle or above on stem.

叶都为基生和茎生，茎生叶2 --4，在茎上的着生的在中部或在上部。

Stems of Chaenomeles speciosa were adopted as the explants to unduce buds.The suitable length of the stem was investigated.

以长俊木瓜茎段为外植体研究了长俊木瓜茎增殖的最适茎长IBA、GA3对壮苗培养的影响。

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。

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。

In the same observation time, the number of maternal ramets and daughter ramets, the total length and the number of stolon and branching intensity of P. flagellaria clone population were higher than P. anserina. But the average length of spacer and stolon of P. anserina were more than P. flagellaria.

在同一观测时期内，单位面积内蔓委陵菜无性系种群的母株数量、分株数量、匍匐茎总长度、匍匐茎条数以及分枝强度均高于鹅绒委陵菜种群；而鹅绒委陵菜的间隔子平均长度、匍匐茎平均长度均大于蔓委陵菜。

Thick stem of the potato, in the Man-type, leaf green, kidney-type, petiole, stem are green, veins, geranyl Department of purple, purple-red skin potato, spindle type, the high rate of potato, sweet potato spring block 2-4 summer potato blocks 3-8, blockenlarged, smooth non-cleaved ditch resistance, storage, germination strong resistancelean, cooked noodles and sweet chestnut like incense and rich nutrition, high resistance to stem nematode, anti - root rot, is suitable for processing of starch, dry and cut the best varieties for human consumption.

该薯茎蔓粗壮，中蔓型，叶绿色，肾型，叶柄，茎蔓均为绿色，叶脉、叶基部紫色，薯表皮紫红色，纺缍型，大薯率高，春薯2-4块，夏薯3-8块，薯块膨大块，光滑无裂沟，耐贮藏，萌芽性强，耐肥耐瘠，熟食面甜而香似板栗，营养丰富，高抗茎线虫病、中抗根腐病，是适合加工淀粉、切干和食用最理想的品种。

Stems single, not branched; upper stem leaves hastate and usually clasping at base

茎单一，不分枝；上面茎生叶戟形和通常抱茎的在基部 11 Onosma paniculatum 滇紫草

Quercetin, quercetin rhamnoside, hyperin, syringoside and eleutheroside E wereisolated from the flower of Acanthopanax senticosus. Searching bioactive natural compound and establishing quality evaluation standard arefocused on this experiment. Using cold immersing of 70% methanol to extract from flower ofAcanthopanax senticosus and integrating macroporous resin, silica gel column chromatography,sephadex gel to abstract. We obtained five monomer compounds (compoundⅠ-compoundⅤ),quercetin, quercetin rhamnoside, hyperin, syringoside and eleutheroside E. That five compoundswere determined by HPLC in eight parts of Acanthopanax senticosus (flower, root, leaf fruit,shoot, new shoot, phloem of shoot, skin of shoot), which provide science bases for establishingquality evaluation system and settle infarctate foundation.

本文以从刺五加花蕾中寻找具有重要生物活性的天然化合物和建立质量评价标准为主要目的，对其化学成分进行研究，采用70％甲醇冷浸的方法对刺五加花蕾中的成分进行提取，运用大孔树脂吸附色谱法、硅胶柱层析法以及葡聚糖凝胶柱层析相结合的方法进行分离，得到5种单体化合物，分别为槲皮素、槲皮素鼠李糖苷、金丝桃苷、紫丁香苷和刺五加苷E；利用高效液相色谱法对这5种化合物在刺五加花蕾中的含量进行了测定；考察了8个部位(花蕾、根、叶、果、茎干、新枝、茎韧皮部、茎皮)中这5种化合物的含量分布情况，并作一比较，为今后建立刺五加质量评价体系提供了科学依据，奠定了坚实的基础。

Bamboo first crystallizes then lignifies during bamboo shoot growth and basically forms crystal structure in one month. 1-year-old bamboo culm ends growth and its height,thickness, volume almost change little, but culm tissue is small and tender and there is more water and less substance in it. Bamboo crystal proportion keeps invariable during this period.2-year-old bamboo culm begin to lignify,its cellulose proportion debases and its crystal proportion decreases. Bamboo lignin debases, crystal proportion changes a little in the end of this period.Many-old-year bamboo culm crystal proportion is almost invariable. Freaky bamboo cell wall crystal region's thickness is less than normal bamboo's. Bamboo cross section crystal area and the ratio of long axis to short axis are less than normal bamboo's,and roundness,irregular index, the fiber cap density per unit area increase more than normal bamboo's.

竹笋生长阶段是先结晶后木素化的过程，一个月内细胞壁结晶组织基本形成；2）一年生竹材的植株秆茎生长结束，秆茎的高度、粗度和体积变化不大，但秆茎的组织幼嫩，含水量高，干物质少，竹材结晶度基本不变；3）二年生竹材的植株开始木质化，纤维素比例降低，结晶度减少，到后期竹子木质化降低，竹材结晶度变化不大；4）多年生竹材的结晶度没有太大的变化，结晶度大小处于波动状态；5）畸形竹材纤维帽细胞壁结晶区的厚度比正常竹小，其横截面结晶区的面积、纤维帽长轴与短轴比有所减少，而圆形度、异型指数有所加大，单位面积纤维帽的密度增大。

The results were summarized as follows:① The length and dried weight of shoot and the differentiation of leaves were enhanced on a culture medium with α-Naphthaleneacetic acid, and the effectiveness of NAA became stronger with the incerase in concentration within a range of 0.001 mg/L to 0.1 mg/L.

结果表明：①萘乙酸促进银杏茎尖伸长生长和叶片分化，随NAA浓度增加其作用增强，在NAA为0.1 mg/L时茎尖长度为对照的1.47倍，分化叶数为对照的2.62倍，茎尖干重为对照的6.45倍。

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。