3) Geographic provenance
地理种源
1.
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。
2.
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。
4) provenance
[英]['prɔvənəns] [美]['prɑvənəns]
地理种源
1.
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
2.
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
3.
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
5) geographical provenance
地理种源
1.
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
2.
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。
3.
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
6) geographical provenances
地理种源
1.
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
2.
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
3.
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。
补充资料：地理种
地理种 geographic race
同一种生物以地区不同所产生的形态差异为区别时，称之为地理种。地理种的形成原因一般认为是地理的隔离。地理种所在范围的大小根据情况不同有多种多样，有在同一溪谷的不同地点的果蝇显有不同地理种的例子。原则上，虽同一地域内是不能存有同一种的两个地理种，但偶尔也可见到，那是因为地理种形成后由于分布圈扩大而出现比较新的接触区之故〔例如大山雀（parus major），欧洲的北方亚种（p．major major）和东亚的p．major minor在乌苏里共存，以及印度系的p．major cinereus在伊朗北部出现杂居〕。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条