| 1. | The conversed 120 bp gene region contains an intragenic control box related to the gene tanscription
双维管束亚属植物长度在658刁28hp ，白皮松则为49952hp 。 |
| 2. | The species diversity was richer , and diversity indexes varied with different sample plots
根据物种多样性分析的结果，小陇山白皮松物种多样性较丰富，不同样地多样性指数差异较大。 |
| 3. | The results showed the dominant fungi in pinus bungeana forest in xiaolongshan , and the soil quality was not high as a whole
结果表明：小陇山白皮松以青霉属和曲霉属为优势菌群，土壤整体质量不高。 |
| 4. | 20 surface soil samples in pinus bungeana of xiaolongshan tianshui were collected for isolation and genus identification of fungi by dilution - plate method
摘要在样地调查的基础上，在小陇山白皮松分布区采集表土土样20个，采用稀释平板计数法对真菌进行了分离，并进一步鉴定到属。 |
| 5. | The number of major 18s rdna sites is generally much more than that in angiosperms and varies markedly among pines . there are seven pairs of 18s sites in pinus tabulaeformis , five in p . desata , eight in p . yunnanensis , 10 in p . massoniana , six in p . latteri , three in p . bungeana , and ten for p . armandi
其中主要位点数目，油松有7对，高山松5对，云南松8对，马尾松10对，南亚松6对，白皮松3对，华山松10对，平均在7对；另外，部分松树还存在弱位点。 |
| 6. | The results showed that : there were five stages in the rising process of the internal temperature of untreated , fire - retardant solution soaked , and fire - proof paint coated wood during the fire ; the carbonization rate of wood decreased by 21 . 1 % ~ 35 . 6 % and the rising speed of internal temperature also declined greatly when wood was soaked in fire - retardant solution or coated with fireproof paint ; the carbonization rate of white pine was 8 . 5 % ~ 17 . 4 % higher than that of the northeast china ash ; for untreated wood , the carbonization rate in tangential direction was 5 . 8 % ~ 10 . 5 % higher than that in radial direction ; the internal temperature of wood varies with the developing direction of combustion
结果表明：火灾发生过程中未处理木材、阻燃浸渍处理和涂刷防火徐料木材内部温度上升过程出现5个阶段；经过阻燃浸渍处理和涂刷防火涂料后，木材的燃烧炭化速度降低了21 . 1 % ~ 35 . 6 % ，内部温度上升速度大幅度下降；白皮松木材的燃烧炭化速度比水曲柳木材的燃烧炭化速度快8 . 5 % ~ 17 . 4 % ；未处理木材沿弦向的燃烧炭化速度比径向快5 . 8 % ~ 10 . 5 % ；木材内部的温度变化沿燃烧推进方向不同而不同。 |
| 7. | The analyses of these three types of data in the hybrid and its parents could provide new information on genomic composition and evolutionary mechanisms of the hybrid . the main results are the followings : 1 . rdna fish chromosomal localization of 18s and 5s rdna was carried out for two soft pines ( subgenus strobus ) and five hard pines ( subgenus pinus ) using fish
Rdna荧光原位杂交( fish )通过对华山松和白皮松两种单维管束亚属植物及油松、云南松、高山松、马尾松和南亚松等五种双维管束亚属植物的18srdna与5srdna的荧光原位杂交，结果表明： ( 1 )裸子植物的18srdna位点数目明显多于二倍体被子植物。 |
| 8. | In order to make clear the regulation of the combustion and the heat - transport process of fire - retardant treated wood , the combustion of untreated , fire - retardant solution soaked , and fire - proof paint coated white pine ( pinus bungeana ) and northeast china ash ( fraxinus mandshurica ) wood as well as the rising process of temperature at different sites in wood were measured in this study , taking a multi - function fire - proof experiment oven to simulate the typical process of fire
摘要为了弄清楚阻燃处理木材的燃烧及其热传导规律，该研究采用多功能耐火实验炉模拟典型火灾的发生过程，测定了未处理、阻燃剂水溶液浸渍处理、涂刷防火涂料白皮松和水曲柳木材的燃烧及木材内不同位置的升温过程。 |
| 9. | 2 heterogeneity and evolution of 5s rdna pattern of intragenomic and interspecific variation of 5s rdna hi five pines ( including subgenus strobus and pinus ) were studied through cloning and sequencing multiple 5s rdna copies the length of 5s rdna unit is 658 - 728 bp hi diploxylon pines while 499 - 521 bp hi the haploxylon p . bungeana
Ssif7 ： na的序列变异与分子进化利用分子克隆和dna测序分析了油松、云南松、马尾松、白皮松和不同遗传背景的高山松居群的ssilna基因序列变异及基因进化规律，得到以下主要结果： （ 1 ） ssrdna的结构特征。 |
