geographic race

In this paper, germination trials of seeds from nine geographic provenances of Betula alnoides in Yunnan and Guangxi were conducted under four temperature conditions, including 15℃, 20℃, 25℃, 30℃, so as to reveal the effects of temperature on its seed germination.

对采自广西、云南的 9个西南桦地理种源的种子 ,设置 15 ,2 0 ,2 5 ,30℃温度处理 ,研究不同地理种源种子的萌发特征及其受温度条件的影响。

In order to settle the introduction problem and know heredity foundation and the range of ecological adaptation, the traits on phenotypic, qualities of shoot and DNA genetic marker were analyzed in all resource, geographic provenance that distributed in th.

)是我国南方重要的经济生态型丛生竹之一,在中亚热带以南地区有广泛分布,各地理区域表现出植物形态、生理生化、笋品质和适应性等差异,针对目前绿竹引种的局域性和盲目性等问题,为明确其遗传基础及生态适应范围,本研究在绿竹资源的表型、笋品质、DNA分子标记分析基础上,收集国内主要产区的绿竹地理种源进行造林试验,从造林成活、生长物候、产笋性能、越冬生理、生态适应性等方面系统研究,综合评价出优良地理种源/单丛:1、对12个产地绿竹的表型性状与笋品质分析表明,绿竹资源具有较为丰富的形态性状和品质性状的多样性。

Determination of aesculin and aesculetin in periderm and leaves of Cortex Fraxini among different provenances;

不同地理种源秦皮的树皮及叶中秦皮甲素、秦皮乙素的含量测定

Study on Law of Flower and Cone of Fokienia hodginsii Provenance;

福建柏地理种源开花与结实变异规律的研究

The contents of chlorogenic acid and total flavonoids of Eucommia ulmoides Oliv. leaves among provenances;

不同地理种源杜仲叶片中绿原酸和总黄酮的含量

Genetic diversity among five geographical populations of Chilo suppressalis based on RAPD;

中国水稻二化螟5个地理种群遗传差异的RAPD分析

T-test indicated there was significant difference of the combined immature stages between the two geographical populations at 25 and 32℃ (P<0.

在 30℃、75 %rh条件下 ,研究绿豆、饭豆、蚕豆、爬山豆及大豆对绿豆象两地理种群生长发育和繁殖的影响。

The results demonstrate that Odorrana livida of different geographical populations have the same amount of chromosome and karyotypic formulae.

结果表明虽然大绿臭蛙的不同地理种群之间的核型模式相同,但在SM和M的数目、顺序以及次缢痕的位置等有所不同,说明大绿臭蛙的不同地理种群的染色体具有丰富的多样性。

Genetic diversity of geographical populations of four Dendrolimus species (Lepidoptera:Lasiocampidae) in China based on allozyme analysis;

四种松毛虫不同地理种群遗传多样性的等位酶分析

Genetic diversity of different geographical populations of wolf spider (Pardosa pseudoannulata) based on AFLP analysis;

拟环纹豹蛛不同地理种群遗传多样性的AFLP标记研究

Sequence analysis and comparison of rDNA-ITS1 of geographical populations of Liriomyza sativae Blanchard (Diptera: Agromyzidae) from China and closely related species;

不同地理种群美洲斑潜蝇及近缘种的rDNA-ITS1序列分析和比较

Morphological comparison of two geographic populations of Psyttalia incisi(Silvestri);

切割潜蝇茧蜂2个地理种群的形态差异比较

Comparative analysis on RAPD of two geographic populations of Psyttalia incisi;

切割潜蝇茧蜂2个地理种群的RAPD比较分析

Individual size and abundance of the yeast-like endosymbiote in different geographic populations of brown planthopper, Nilaparvata lugens;

不同地理种群褐飞虱体内共生酵母菌的个体大小及数量差异

The preliminary report on seed character and seedlings growth of Jatropha curcas geographical provenances;

麻疯树不同地理种源种子性状及苗期生长初报

① The diversity of resistance to pine wood nematode caused by masson pines of different ages;② The diversity of resistance to pine wood nematode of masson pine of various geographical provenances;③ The studies of the resistance.

目前,马尾松抗病性的研究主要有以下5个方面:①不同树龄与抗病性之间的关系;②不同地理种源马尾松对松材线虫病抗病性的差异;③与种源抗病性有关的主要成分;④马尾松的诱导抗病性;⑤马尾松抗病育种。

Based on the analyses of the mineral nutrients from chinese fir geographical provenance,the variant regularities of the mineral nutrients the elements such as N,K,P,Na,Fe-from the geographical provenance were studied in the paper.

在杉木地理种源矿质分析的基础上，研究了地理种源矿质养分（氮、钾、磷、钠、铁等元素） 的变异规律，研究结果表明：不同杉木种源针叶灰分中钾、铁和磷的百分含量达到了极显著，显著差异，其中钾含量与高生长呈极显著正相关，即生长快的种源钾含量高于生长慢的种

Susceptibility to pesticides of different geographic populations of Hylyphantes graminicola and relative fitness of susceptible and resistant populations;

不同地理种群草间钻头蛛(Hylyphantes graminicola)对杀虫剂的敏感性及抗、感种群的相对适合度

The cold hardiness in the different geographic populations of Asian corn borer,Ostrinia furnacalis (Guenée);

不同地理种群亚洲玉米螟抗寒力研究

In this paper, the ecological adaptability and genetic structure of different geographic populations of Asian corn borer (ACB),Ostrinia furnacalis (Guenee) from 13 locations in different ecological areas for corn growing throught China were carried out in laboratory.

本文从生态学和遗传学两方面，对来自我国不同玉米长生态区的13个亚洲玉米螟长地理种群的生态适应性及遗传结构进行了比较系统全面的研究。

Comprehensive evaluation and selection of geographical provenances of Dendrocalamus latiflorus in Fujian;

福建麻竹地理种源多性状综合评价及选择

The studying of seeds morphological differentiation among populations of Gordonia acuminata from different geographical provenances and successiving communities;

不同地理种源及演替群落的四川大头茶居群种子形态分化研究

Principal component analysis(PCA), Principal factor analysis(PFA), Clustering analysis(CA), and WPGMA, the authors also studied the morphological differentiation of seeds among individuals of Gordonia acuminata from different geographical provenances and successiving communities.

测定了来自不同地理种源及演替群落的四川大头茶8个居群112株个体各50枚种子的10项形态指标,然后用主分量分析法、主因子分析法、系统聚类法等数量分析方法研究了四川大头茶种子在个体水平上的形态分化。