黄松

烤至边缘浅黄松脆，中间略软。

Bake until light golden and crisp around the edges and slightly soft in the centre .

采用NAA和GA3组合，使美国黄松嫩稍生根率从2%提高到15%。

The rooting rates of Pinus ponderosa shoots increased from 2 % to 15 % by combing NAA and GA3 in medium .

以GD、SH和1/2SH基本培养基对美国黄松不定芽进行不定根的诱导。

The adventitious buds of Pinus ponderosa were used to induce adventitious roots on GD , SH , 1 / 2 SH media supplemented with different concentration of NAA and IAA .

美国黄松离体胚培养条件下不定芽的形成与根产生的研究

Adventitious Bud and Root Formation of Pinus ponderosa Cultured in vitro

不同美国黄松成熟胚对组织培养的反应

Action of Different Mature Embryos of Pinus ponderosa on Tissue Culture

美国黄松在育苗过程中无任何生理干旱现象发生；

There is no any physiological draught in the course of growing .

美国黄松组织培养不定根诱导的研究

Study on root regeneration from adventitious buds in Pinus ponderosa

黄土高原美国黄松引种生长调查研究

Study on the growth of introduced Pinus ponderosa on the Loess Plateau

最终，全球变暖会使标志性的黄松森林消失。

Ultimately , global warming may eliminate the iconic ponderosa pine forests .

油松和美国黄松无性繁殖技术研究

Study on Asexual Propagation Technique of Pinus Tabulaeformis Carr . and Pinus Ponderosa

在常规育苗方法的基础上，提前播种，控制苗床湿度是黄松育苗的关键技术。

Early sowing and effective moisture control are the crucial techniques in nursery .

农药污染对黄松稻田土壤产甲烷菌数量和甲烷排放通量影响的研究

Effects of Pesticide-contamination on the Population of Methanogens and Methane Emission in Paddy Rice Soil

黄松引种研究

Studies on Introduction of Pinus ponderosa

美国黄松幼苗对猝倒病抗性较差，播期晚、温度高、湿度大是诱发该病的3个主要原因；

Delay in sowing , high temperature and much moisture are the three major reasons for damping-off .

吉林省黄松甸子砾岩型金矿床最佳工业品位研究

Study of the optimal industrial grade of the conglomerate type gold deposit in Huang-Song-Dian-zi , Jilin Province

研究黄松胶囊对多种实验性心律失常的影响。

To study the effects of Huangsong capsule ( HSC ) on many kinds of experimental arrhythmia .

美国黄松与秦岭主要松属种叶燃烧性比较不同竹龄毛竹材燃烧性能的研究

Conifers Combustion Comparison of Pine Trees in Qinling Mountains and Pinus Ponderosa Combustion properties of Phyllostachys pubescens wood at different ages

9年生黄松胸径是油松的118.9%，9年生黄松树高是油松的91.5%。

The diameter growth of 9-year-old Pinus ponderosa is 118.9 % that of Pinus tabulaeformis , the height growth , 91.5 % .

美国黄松是北美地区广泛分布的松属树种，适应性强，经济价值高，其自然分布区气候条件和生态环境与黄土高原基本相似。

Pinus ponderosas are widely spread in North America with strong adaptability and high economic value . The climate and ecological conditions in its distribution area are similar to that on Loess Plateau .

在树高、胸径和材积3个生长指标上，美国黄松具有很好的相关性，相关系数均在0.9以上；而油松的树高与胸径相关系数仅为0.583。

Compared to P.tabulaeformis , the height and diameter growth and volume of P.ponderosa have good relativity , and correlation value was more than 0.9 , but P.tabulaeformis was only ( 0.583 ) .

通过育苗试验得出，美国黄松种子发芽率高，不经任何处理（如沙藏）措施均能萌发；

The nursery trial showed that the seeds of Pinus ponderosa has a high percentage of germination , can sprout without any treatment ( e.g.stored in sand ), but it is irresistant to moisture .

在阐述了世界和我国引种栽培美国黄松的基础上，着重阐述了黄土高原延安树木园引种栽培生长的突出表现。

On the basis of recounting details of Pinus ponderosa in the world and domestic , its prominent characteristics of growth in Yanan arboretum on the loess plateau has been emphasized on the paper .

以2年生的油松为砧木，4年生的美国黄松侧枝为接穗，对影响嫁接成活率的嫁接方法、嫁接技术、嫁接时间、接穗处理、砧木年龄、气象因子等因素进行研究。

Using 2-year-old Pinus tabulaeformis as stock and the branches of 4-year-old Pinus ponderosa as scions , the factors affecting the survival rate of grafting such as grafting method , skill , time , scion treatment , stock age and weather condition were all studied .