分枝

According to the describing method of Maoxue Li et al, we first confirmed the C-banding of Leymus multicaulis is 2n=28=5CT+2CTI(superscript +)+2CT(superscript +)+2CT(subscript +)+1CTI(subscript +)+1C+1T+1TI, and the C-banding of Cichorium intybus L. cv. Puna is 2n=18=2CT+4CTI(subscript +)+1CT(subscript +)+1CT(superscript +)+1CT(subscript +)I(subscript +).

根据李懋学等（1991年）对C-分带的描述方法，首次确认多枝赖草染色体的C-分带为2n=28=5CT+2CTI+2CT+ICTI+ICTI+1C+1T+1TI，普那菊苣各染色体的C-分带为2n=18=2CT+4CTI+1CT+ICTI+1CTI。

It was indicated by the CALPHAD that the solute content at the end point of primary solidification changes synchronistically with the start point, solute content in dendritic arm and the partition coefficient increase with the solid fraction. Simple Scheil equation was shown to be able to calculate the eutectic amount on the base of partition coefficient calculated by thermodynamics, its prediction for the different solutes is self--consistent and agreeable with the CALPHAD. The eutectic amount and SDAS was measured in DC experiment and compared to model value, it was shown that the experimental data are in agreement with the model prediction.

相图计算耦合Scheil模型的计算结果显示， Al--Cu--Zn合金单相凝固结束点的溶质含量与凝固初始点的成分同步变化，溶质含量和溶质分凝系数随凝固过程的进行不断增加；在热力学计算出合金分凝系数的基础上，简单Scheil方程可以计算初生相含量，从不同溶质得到的计算结果是自洽的，并与相图计算耦合Scheil模型的预测值一致；实验测定了不同成分铝合金的共晶含量和枝晶间距，实验数据与模型结果基本一致。

The results were as follows: After the slash pine stands cover-overheaded, the average DBH and crown diameter are very negative correlative to stand density, the average high of branch and high of tree are a certain extent correlative to stand density; high stand density can be a certain extent accelerate high growth, but the effect is limited.

结果表明：湿地松人工林林分郁闭后，林木平均胸径、平均冠幅与密度呈极显著负相关；林分平均枝下高、平均树高与密度有一定程度的相关性，高密度一定程度上可以促进林木的高生长。

The crown of the tree is composed of 9 varieties of tree branches. 6 of them are alive including the oak, Chinese sweet gum, chestnut, peach, persimmon and pine, and the other 3 have withered.

九叶树的树冠由9种各不相同的树枝组成，其中6种树枝分别是花栎树枝、青枫树枝、栗树枝、桃树枝、柿树枝、松树枝，其它3种树枝已经枯死。

In conclusion, the efficiency of biomass formation at the tussock scale was decided in certain degree with the size-dependent reproduction and competitive relation pattern among ramets. And the early-maturing switchgrass presented higher efficiency of biomass production based on its size-independent reproduction and relaxed competitive relationship.

植丛尺度的生物质形成在一定程度上取决于分株生殖发生的大小依赖程度和分株间竞争关系格局，基于植丛尺度普遍的生殖发生和明显弱化的光资源竞争，早熟柳枝稷表现出更为高效的生物质形成机制。

In order to deeply understand biomass formation for Panicum virgatum in the semiarid loess hilly-gully regions, we investigated the biomass production, ramet generation, and resource supply and demand at the plot and tussock scales during the yearly life cycles of two switchgrass species, i.e. early-maturing and late-maturing ones, respectively.

为深入认识半干旱黄土丘陵沟壑区引种能源植物柳枝稷生物质生产的开发潜力及其约束机制，调查了农田、植丛尺度上早熟和晚熟柳枝稷年度生命周期内生物量累积、分株建成动态，以及土壤水分供求平衡过程。

It is shown that polystyrene has been grafted on the surface of nmSiO2 particles and the grafting ratio is about 40%. The surface of nmSiO2 could be treated effectively by KH570in absolute ethanol at 25℃, 48h. The nmSiO2-g-PSt unpurified by toluene appear microsphere in which nmSiO2 particles are contained, whereas the purified one appear internet formed by many pieces. The grafting ratio of PSt on nmSiO2 surface could be influenced obviously by dispersion agents content and agitation speed, whereas the morphology of nmSiO2-g-PSt purified is rarely changed.

结果表明：常温下在无水乙醇介质中处理48h以上可获得良好的硅烷处理效果；PSt已接枝包覆于nmSiO2表面，接枝率约40%；经甲苯洗涤前nmSiO2-g-PSt呈多粒子包覆微球状，洗涤后呈单粒子包覆网状结构；分散剂用量、搅拌速度改变对接枝率有影响，但对包覆形态影响不大。

The ophthalmic artery gives off 3 branches to the intracanalicular optic nerve that all run first into the dura and then supply the nerve via the pia mater: medial collateral branch, lateral collateral branch, and ventral branch.

眼动脉行经视神经管时，分出一至三枝细小分枝，支配管内视神经，分别为：内侧循环支、外侧循环支、背侧支。

The age class structure of Salix oritrepha population in alpine, cloudy and wet area of east Qilian Mountian is studied ,on two levels of genets and their ramets and sprouting branches .The results show that genets population is very short of the first and second class seedlings,and most of seedlings belong to the third and forth classes, and the development trend of population on this level is stable;on the other hand,the age structure of remets and sprouting branches population is more complete,and its age class distribution chart likes triangle, belonging to increasing type.In general,Salix oritrepha population in this area is increasing, but its reproduct way have changed in community succession process in order to accommodate varying circumstances.

从无性基株个体种群和无性克隆分株及萌生枝种群两个层次上对东祁连山高寒阴湿地区山生柳种群年龄结构进行分析，结果表明：无性基株个体种群 0~10 龄级幼苗贮备严重不足，11~20 龄级苗木所占比重最大，种群动态呈稳定型；无性克隆分株和萌生枝种群年龄结构比较完整，结构分布图呈正三角形，种群动态表现为增长型；总体上来讲山生柳种群呈增长趋势，只是在演替过程中为适应环境其繁殖方式有所改变，导致现阶段山生柳种群两个层次结构状态。

France Holly Yijian not cutting deep division branchlets cutting-down section, depth to 1 cm soil trees were suitable; the depth of the cutting insert for the next node, in one centimeter, and the cuttings from 45 degrees tilt, shallow inserted Chacha to advance rooting cuttings survived.

法国冬青扦插宜浅不宜深，小枝分株扦插平截面向下，深度以母株人土1厘米为宜；大枝扦插的深度为下一茎节插入上中1厘米，插穗与地而成45度左右倾斜，浅插斜插有利于插条提前生根成活。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。