查询词典 terrestrial root

Analyzed the effect factors of Abies fabric root system strength,of which the root diameter and root length are the important effect factors, the interaction of root diameter and root length bring on the strength of Abies fabric root system.

分析了影响冷杉根系侧强曲线的因素，其中冷杉根系的根径和根长为影响其侧强曲线的主要因素，根系的抗拉强度的大小是根径与根长共同作用的结果。

The secondary root number per plant of Yumai No 49,a mi d-s trength quality wheat,is the smallest among the three varieties except the winte r stage but its root system quality is the best;the intensity of reducing TTC an d the activity of SOD of fresh wheat root are the highest during the period fro m winter stage to flag leaf stage.Since flag leaf stage,its physiological charac ters are weaker and have bigger variation during whole stage.The secondary root number per plant of Yumai No 50,a soft quality wheat,is the biggest except duri ng winter stage,and its dry weight of root of single plant is the heaviest in ev ery stage.Before 19th,March,its intensity of reducing TTC is the weakest and dec reases abruptly after flag leaf stage,but its activity of SOD decreases slowly.R oot dry weight per plant of Yumai No 34,a high quality wheat,is the smallest amo ng the three varieties and its root system quality is the weakest.Before jointin g stage,the intensity of reducing TTC is stronger,but after that,it decreases sl owly though it is smaller,and the activity of SOD decreases slowly in every stag e.

中筋小麦豫麦49号除越冬初期外，其它各时期单株次生根条数均为最少，单株根干重介于豫麦34号及豫麦50号之间，单根质量高；越冬初期至挑旗期，根系活力、根中SOD活性均强于其它两个品种，挑旗后，根系生理活性较小，整个生育期根系生理活性变化幅度大；弱筋小麦豫麦50号除越冬初期外，其它各时期单株次生根条数均最多，单株根干重各时期均为最大；拔节前根系活力最弱，挑旗后根系活力下降幅度较大，根中SOD活性较强且各时期变化幅度不大；强筋小麦豫麦34号，单株根干重最小，根系质量最差；拔节前根系活力较强，拔节后根系活动较弱，下降速度缓慢，根中SOD活性各时期变化幅度较小。

When earlier place upside still does not have apparent symptom, root ministry grows to already was affected, radicle root needle grows stop, and cerebral cortex continues to add thick, in close root needle section chief gives very much new root, serious Shi Yougen dies, typical symptom is long around dead root piece short thick and much more ramose root group.

初期当地上部还无明显症状时，根部生长已受到影响，幼根根尖生长停止，而皮层继续加厚，在近根尖处长出很多新根，严重时幼根死亡，典型症状是在死根四周长出短粗且多分枝的根群。

The results showed that soil type had significant effects on the root morphology and nodule traits of test varieties. In alfisol, the root dry mass, root length, and root surface area of test varieties were greater at the fifth trifoliolate stage and bloom-beginning stages while smaller after seed-beginning stage, compared with those in mollisol, and the average root diameter after seed-beginning stage was higher in alfisol than that in mollisol. Soil type did not affect root-shoot ratio. The nodule number after seed-beginning stage was much smaller in alfisol than in mollisol, while the nodule fresh mass and the mass per nodule were in adverse.

结果表明：土壤类型对大豆根系形态及结瘤性状均有显著影响，在第5片复叶展开期和初花期，暗棕壤的根系干质量、根长和根表面积低于黑土，而在鼓粒初期后高于黑土，暗棕壤的平均根直径在鼓粒初期后也高于黑土，但土壤类型对根冠比的影响不大；暗棕壤的根瘤数在初花期后明显低于黑土，但根瘤鲜质量和单个根瘤质量高于黑土。

A pot experiment was conducted with two soybean varieties (Di2003-1 and Hefeng25) and two main soil types in Heilongjiang Province to study the interactive effects of variety and soil type on the root morphology and nodule traits of soybean plants. Root samples were collected at the fifth trifoliolate stage, bloom-beginning stage, pod-beginning stage, full pod stage, seed-beginning stage, full seed stage, and full maturity stage for the analysis of root dry mass, root length, root surface area, average root diameter, nodule number, nodule fresh mass, and mass per nodule.

选取黑龙江省2种主要农田土壤类型和2个大豆品种（滴2003-1和合丰25），采用盆栽试验，分别于大豆第5片复叶展开期、初花期、结荚初期、结荚盛期、鼓粒初期、鼓粒期和完熟期取样，进行根系形态（根干质量、根长、根表面积和平均根直径等）和根瘤性状（根瘤数、根瘤鲜质量和单个根瘤质量）的动态分析，以研究品种和土壤类型对大豆根系形态特征的影响。

By empolying radish root tuber of terrestrial as substance through solvent culture method, the root filtration function to heavy metal enrichment condition is investigated and the theoretical basis of the application of heavy metal sewage purification by terrestrial is offered.

以陆生植物———萝卜块状根系为材料，通过溶液培养的方法，研究了根过滤作用对重金属的富集情况，为陆生植物在重金属污水净化中的应用提供理论依据。

To meet the needs for scientific, technological and socio-economic development in China, we proposed the four areas that the Chinese scientists should focus their study of global change and terrestrial ecosystems in future, including:(1) Metabolism and coupling mechanism of key life elements in terrestrial ecosystems in China;(2) Implications of terrestrial ecosystems in areas sensitive to global change and in important transects on global change;(3) Interactions between biogeochemical cycle of C, N, P, S in China and global change; and (4) Development of regional dynamic vegetation model which meets the actual needs of China.

中国学者在全球变化与陆地生态系统研究领域也开展了许多工作并取得了重要成绩。按照我国科学技术和社会经济发展的需求，本文提出了未来我国在该领域的研究重点，包括（1）中国陆地生态系统重要生命元素的代谢及其耦合机制研究；（2）全球变化敏感区域或重要样带上陆地生态系统对全球变化的影响研究；（3）我国的C、N、P、S生物地球化学循环与全球变化的关系研究；（4）发展中国特色的区域植被动态模型。

To meet the needs for scientific, technological and socio-economic development in China, we proposed four areas on which the Chinese scientists should focus their study of global change and terrestrial ecosystems in future, including:(1) Metabolism and coupling mechanism of key life elements in terrestrial ecosystems in China;(2) Implications of terrestrial ecosystems in areas sensitive to global change and in important transects on global change;(3) Interactions between biogeochemical cycle of C, N, P, S in China and global change; and (4) Development of regional dynamic vegetation model which meets the actual needs of China.

中国学者在全球变化与陆地生态系统研究领域也开展了许多工作并取得了重要成绩。按照我国科学技术和社会经济发展的需求，提出了未来我国在该领域的研究重点，包括①中国陆地生态系统重要生命元素的代谢及其耦合机制研究；②全球变化敏感区域或重要样带上陆地生态系统对全球变化的影响研究；③我国的C、N、P、S生物地球化学循环与全球变化的关系研究；④发展中国特色的区域植被动态模型。

It is dedicated to education and research focusing on a wide diversity of research areas, including the quantitative population ecology of plants and small mammals, terrestrial plant community ecology, grassland biodiversity and restoration ecology, plant fungal pathogen dynamics and population biology, successional changes in terrestrial insect communities, terrestrial ecosystem ecology, the remote sensing of natural resources, life history theory, molecular evolution in vascular plants, evolutionary and theoretical population genetics, theoretical ecology, and limnology and aquatic ecology, basic biology of insects, Ecophysiology; paleobotany; population genetics, evolution of plants and fungi.

其主要致力于生态学和进化生物学的教育和研究，主要学科领域包括植物和小型哺乳动物种群生态学、陆地植物群落生态学、牧草生物多样性和恢复生态学、植物真菌病原动力学和种群生物学、陆地昆虫群落连续改变、陆地生态系统生态学、自然资源遥感、生命史理论、维管束植物分子进化、进化和理论种群遗传学、理论生态学、湖沼学和水生动物生态学、基础昆虫生物学、生态生理学、古植物学、种群遗传学、植物和真菌的进化等。

Aqueous extract of cotton has allelopathic effect on Raphanus sativus, Brassica campestris, Lactuca indica, Brassica campestris, Echinochloa crusgall, Setaria viridis and Abutilon theophrasti and its inhibition effect gradually strengthens with increasing concentration. Aqueous extracts from stems, leaves and roots of cotton inhibit or accelerate seed germination and seedling growth, and activity of enzyme of seedling root of cotton. While aqueous extracts from stems and leaves of cotton are 0.02 gmL^(-1), root length, shoot length, lateral root number and dry weight of cotton respectively increase by 10.3%, 3.1%, 22.9% and 2.4% over the control. The above mentioned indexes are lower than the control by 34.4%, 39.2%, 40.6% and 19.0% respectively as the aqueous extracts are 0.1 gmL^(-1). At the same time, root activity and SOD activity decrease by 38.2% and 36.7%, while POD activity and MDA content increase by 52.3% and 36.5%. Growth indexes of plant receptors increase at low concentrations but decrease at high concentrations of aqueous extracts. The allelopathic effect of aqueous extract of stems and leaves is stronger than that of root.

结果表明：棉花植株水浸提液对萝卜、白菜、莴苣、油菜、稗草、狗尾草、苘麻均具有化感效应，随着作用浓度增加，抑制效应逐渐加强；棉花茎叶和根系水浸提液对棉花种子萌发、幼苗生长、幼苗根系活力、根系酶活性有抑制或促进作用，当茎叶浸提液浓度为0.02 gmL^(-1)时，棉花根长、苗高、侧根数、干重分别比对照增加10.3%、3.1%、22.9%和2.4%，当浓度为0.1 gmL^(-1)时，上述指标与对照相比分别降低34.4%、39.2%、40.6%和19.0%，而根系活力、SOD活性比对照降低38.2%、36.7%，POD活性、MDA含量较对照增加52.3%和36.5%，不同浓度棉花植株水浸提液对棉花生长呈现"低促高抑"的规律，且茎叶浸提液作用效应大于根系浸提液。

I had a lovely dog named PiPi, he was one of my best friends.

我曾经有过一只小狗，它的名字叫皮皮，它很善良，它是我最忠实的朋友。

Newly ovulated mouse oocytes were cultured in the CZB medium supplemented with different concentrations of pyruvate before treated for activation or assayed for MPF activity.

我们猜测卵母细胞在不含丙酮酸的条件下老化的更快，并且卵丘细胞可能通过消耗不含葡萄糖的CZB中的丙酮酸从而促进卵母细胞老化。