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wild peony
相关语句
  野生牡丹
     Studies on pollen morphology of the wild peony
     中国野生牡丹花粉形态的研究
短句来源
     The results indicate that there exists a relation between pollen morphology and the externals of plants; the pollen morphology is different when the wild peony lives in changed environment.
     分析结果表明:花粉形态与植物的外部形态特征有一定关系,同一种野生牡丹生长在不同的环境中,其花粉形态也不同.
短句来源
  “wild peony”译为未确定词的双语例句
     The germination of wild peony seeds must to have a long time, at least, of six months. The temperature range of 10 ̄ 15 ℃was more suitable and 20℃ would be harmful to seed germination.
     其萌发特性与栽培牡丹相比也有较大差异:萌发期长达半年以上,且萌发温度在10~15℃为宜,超过20℃则明显不利于生根及上胚轴生长。
短句来源
  相似匹配句对
     Studies on pollen morphology of the wild peony
     中国野生牡丹花粉形态的研究
短句来源
     Study on Pollen Morphology of 4 Wild Herbaceous Peony
     4种野生芍药的花粉形态研究
短句来源
     WILD AT HEART
     我心狂野
短句来源
     Wild Horizons
     21狂野之地
短句来源
     Zhaojun Peony
     赵军牡丹
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Woody Peony is a kind of precious flower and medicinal tree endemicto China, which has had a cultivation history of over 1500 years. So far,there are over 500 cultivars in China. Most of the research on the classification of woody peony and thedescription and identification of peony species were conducted by scientistsof the western countries on the basis of the peony plants and specimensintroduced into England, USA and France etc. from China during the18th-19th century. In recent years, the author has conducted...

Woody Peony is a kind of precious flower and medicinal tree endemicto China, which has had a cultivation history of over 1500 years. So far,there are over 500 cultivars in China. Most of the research on the classification of woody peony and thedescription and identification of peony species were conducted by scientistsof the western countries on the basis of the peony plants and specimensintroduced into England, USA and France etc. from China during the18th-19th century. In recent years, the author has conducted a series of investigation andstudy on Chinese wild woody peonies in Anhui,Henan, Shanxi, Shaanxi,Gansu, Sichuan and Yunnan Provinces of China. The present paper proposes 3 new species and 1 new status of Chinesewild woody peonies. This achievement leads to provide the scientific andtheoretical basis for the study on the origin and natural classification ofpeony cultivars and exploitation,protection,utilization of Chinese precious,rare and endangered gene resources of wild woody peonies as well as thehybridization of new cultivars and expansion of peony cultivated areaetc. Osti's Peony (Paeonia ostii T. Hong et J. X. Zhang sp. nov.) The species name "ostii" is dedicated to Dr. Gian Lupo Osti, theItalian Vice President of International Dendrology Society. We do appr-eciate his friendly, valuable and precious help to promote the scientificresearch of Chinese wild woody peonies! Osti's Peony differs from Rock's Peony and its congeners are in moreor less lanceolate leaflets with entire margin, glabrous beneath and 4-7pairs of veins, the terminal leaflets 1-3 lobed; petals white or slightlytinged with dilutely reddish color, but without purple basal blotch; fila-ments, disks and styles dark purplish red all together. Jishan Peony (Paeonia jishanensis T. Hong et W. Z. Zhao sp. nov.) It differs from P. suffruticosa Andr. subsp. spontanea (Rehd.) Haw &Lauener in its white flowers and without petaloid stamens. A. Rehder, an American dendrologist, identified and nominated it asa new variety (P. suffruticosa Andr. var. spontanea Rehd.) in 1920, basedon the specimen No, 338 collected by W. Purdom in 1910 at a place loca-ted at 25 kilometers away from the west of Yanan. The original Latindescription of its main characteristics is: "floribus roseis, interdumstaminibus petaloideis praeditis" (flowers roseate, sometimes presence ofpetaloid stamens). In 1990, S. G. Haw & L. A. Lauener changed Rehder's variety intosubspecies (P. suffruticosa subsp. spontanea) and identified the white-flow-ered wild peony which is distributed over Majiagou Jishan County inShanxi Province at the alt. 1450m to the same subspecies. The author thinks that the petaloid stamens is one of the most impo-rtant characteristics of Peony Cultivars originating from wild speciesafter cultivation. It shouldn't be confused with wild peony. Therefore,Haw's subspecies should be lowered and changed to cultivar. The JishanPeony is an undoubted wild woody peony species. Yanan Peony (Paeonia yananensis T. Hong et M. R. Li sp. nov.) It's a rare and endangered wild woody peony species which has asuperficial resemblance to Rock's Peony being dark purplish blotched atthe base of petals, but is easily distinguished by few leaflets (up to 11),smaller and dilutely purplish roseate or white petals,reddish purple stigmaand disk etc. Rock's Peony [Paeonia rockii (Haw & Lauener) T. Hong et J. J. Listat. nov.] It's identified and nominated by S. G. Haw & L. A. Lauener as a new subspecies (P. suffruticosa Andr. subsp. rockii) based on "Rock'sVariety" which was bred from seeds collected by an American Geographer,Joseph Rock in 1925-1926 from a peohy with big white flower and darkpurple basal blotch in a lamasery of Choni County in the south of GansuProvince. The author of Genus Paeonia of Fl. Reip. Pop. Sin. was mistaken toidentify the peony with white flower and dark purple basal blotch whichis distributed over the south of Gansu and Mt. Taibai of Shaanxi Provincesetc. as Paeonia suffruticosa Andr. var. papaveracea (Andr.) Kerner. H. C. Andrews, a British plant taxonomist, studied a

牡丹为我国特产珍贵花树和药用树种,已有1500余年栽培历史,建国以来,各地栽培品种已达500余个。 有关牡丹分类的主要研究成果多为西方科学家根据18—19世纪从我国引种到英、美、法等国的栽培牡丹和腊叶标本加以描述和定名。 作者近几年来在安徽、河南、湖南、山西、陕西、甘肃、四川、云南等地对我国野生牡丹进行了较广泛的调查和研究。 本文发表3个新种和1个新等级,这对研究我国栽培牡丹的起源和栽培品种的自然分类,发掘、保护、利用我国珍稀野生牡丹基因资源,培育新品种,扩大牡丹栽培地区等方面提供了科学理论依据。

Most seeds of the wild peony were small as compared with cultivars of cultivated peony. The germination of wild peony seeds must to have a long time, at least, of six months. The temperature range of 10 ̄ 15 ℃was more suitable and 20℃ would be harmful to seed germination. Though the germination percentages ofPaeonis szechuanha Fang of four localities were only slightly different (60- 77 % ), there were great different in P. rockii T. Hong et. J. J. Li among the three different localities: the...

Most seeds of the wild peony were small as compared with cultivars of cultivated peony. The germination of wild peony seeds must to have a long time, at least, of six months. The temperature range of 10 ̄ 15 ℃was more suitable and 20℃ would be harmful to seed germination. Though the germination percentages ofPaeonis szechuanha Fang of four localities were only slightly different (60- 77 % ), there were great different in P. rockii T. Hong et. J. J. Li among the three different localities: the germination rate of seeds from Wenxan county, Gansu province was high to 76%, the others were only 12% and 4. 4% from Lueyang county, Shanxi province and Shennongjia county, Hubei Province, respectively. It is suggested that the seed germination characters were one of the important factors which had caused the endangered status of wild P. rockii T. Hong et. J. J. Li.

野生牡丹种子一般较小,而且不同产地之间形状、大小差异较大。其萌发特性与栽培牡丹相比也有较大差异:萌发期长达半年以上,且萌发温度在10~15℃为宜,超过20℃则明显不利于生根及上胚轴生长。四个不同分布地的四川牡丹种子萌发率较一致,均在60~77%之间。三个不同产地的紫斑牡丹种子萌发率则相差甚远,分布于甘肃文县的萌发率达76%,而分布于陕西略阳和湖北神农架的萌发率则分别只有12%和4.4%,出苗率则更低。本文认为紫斑牡丹的种子特性是其在自然界处于濒危状态的重要原因之一。

Most seeds of wild tree peonies Paeonia rockii T. Hong et J.J. Li, P. szechuanica Fang and P. spontanea T. Hong et W.Z. Zhao were small and not well developed as compared with those of the cultivated peony P. suffruticosa Andr., while seeds of P. delavayi Franch. var. lutea Finet et Gagnep were much bigger. The germination percentages of wild tree peonies were low and greatly different among populations growing in different localities. Their hypocotyl growth took at least six months....

Most seeds of wild tree peonies Paeonia rockii T. Hong et J.J. Li, P. szechuanica Fang and P. spontanea T. Hong et W.Z. Zhao were small and not well developed as compared with those of the cultivated peony P. suffruticosa Andr., while seeds of P. delavayi Franch. var. lutea Finet et Gagnep were much bigger. The germination percentages of wild tree peonies were low and greatly different among populations growing in different localities. Their hypocotyl growth took at least six months. The temperature range of 10~15℃ was suitable for seed germination of the wild tree peonies, and 20℃ was harmful to it. The experimental results showed that the absence of effective pollination in wild peonies under natural conditions, especially between different populations, was an important cause for the declining of seed adaptability, and that seed epicotyl dormancy is an important intrinsic factor in its sexual cycle which aggravated the scarcity of wild peony seedlings and populations in nature. The results of biochemical analysis indicated that the content of GA 3 increased and the content of ABA decreased in cotyledons during the breaking of epicotyl dormancy, and the contents of endogenous growth regulators changed only slightly in the endosperm. We suggested that cotyledons be a key part controlling the epicotyl dormancy in peony seeds.

与栽培牡丹相比,野生矮牡丹、四川牡丹和紫斑牡丹的种子一般较小,但野生黄牡丹种子则明显大于栽培牡丹。这4 种濒危的野生牡丹种子的休眠与萌发特性与栽培牡丹的有明显差异:萌发生根期需半年以上,但通过胚培养可使之减至2 周;萌发温度以10~15℃为宜, 超过20℃则明显不利于生根及上胚轴生长; 打破上胚轴休眠需要严格的低温;野生牡丹种子的萌发率及打破上胚轴休眠后的出苗率也大大低于栽培牡丹,而且在不同分布地之间存在较大差异。实验证明:在自然状态下野生牡丹缺乏充分的传粉,特别是居群间的传粉不足,导致其种子质量低下;而野生牡丹种子特殊的萌发特性,特别是严格的上胚轴休眠,则是导致其出苗率极低及自然状态下幼苗和种群稀少的重要内因。生化测定结果表明:在低温打破牡丹种子上胚轴休眠过程中,子叶中的萌发促进剂GA3 含量明显升高,抑制剂ABA 含量显著下降;而胚乳中的各种激素含量则变化不大,胚轴中的激素变化无明显规律,因此认为子叶是控制牡丹种子上胚轴休眠的关键部位。

 
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