次生根 的英文怎麼說
中文拼音 [cìshēnggēn]
次生根
英文
secondary root-
The conditions promote the multiple formation of adventitious buds and regenerated roots in proliferating colonies of cells.
環境促進滋生的細胞群落多次形成不定芽與再生根。Secondary roots emerge on the 4th or 5th day about 4 or 5 cm from the root apex.
在第四或第五天,距根端大約4或5厘米處發出次生根。The pattern of the secondary growth of the soybean root is similar to that of most dicots.
大豆根次生生長的類型和多數雙子葉植物相似。The intense eluviation and weathering of soil with groundwater and run - off result in the enhancing of capacity of transference of some elements, such as si, al, fe, mn. the chemical reactions of the colloid particles in the soil water make those crannies or holes filled by some epigenetic clay minerals and quartz. then a great deal of white reticulate clay comes into being in the quaternary laterite of the dongting basin
地下水和地表水強烈的淋溶作用使土壤中硅鋁鐵錳等元素的遷移能力增強,土壤膠體粒子之間的化學反應,使得這些孔隙空間在後期逐漸被次生黏土礦物和石英所充填,最終,在洞庭盆地第四系紅土地層中形成大量的蠕蟲狀和根狀白色網紋。We have observed the following characteristics of anatomical structure and development : ( 1 ) the primary roots belong to archetype and the lateral roots occur in the position toward the xylem of the vascular cylinder ; ( 2 ) the root endodermis consists of thicken casparian strips, and there are from two lo four layers parenchyma cells near the pericycle ; ( 3 ) the pith and resins canals are absent in the toots ; ( 4 ) secondary structure occurs in the root hair zone, and vascular cambium is formed from the parenchyma cells between the primary xylem and primary phloem ; ( 5 ) tanning materials are abundant in pericycle cells and phelloderm cells ; ( 6 ) sclereids are found in secondary phloem, and rays are rather rich in secondary xylem
結果表明:氣生不定根具有以下結構特徵和發育特點: ( 1 )根為二原型,側根正對著木質部發生; ( 2 )幼根內皮層細胞具凱氏帶加厚,維管柱內緊挨中柱鞘內側具有2 ~ 4層大型薄壁細胞; ( 2 )根中無髓和樹脂道; ( 4 )次生結構發生於根毛區,維管形成層由初生木質部和初生韌皮部之間的薄壁細胞轉化形成; ( 5 )中柱鞘和栓內層細胞富含單寧類物質; ( 6 )次生韌皮部有石細胞,次生木質部射線發達。In damaged stems and roots, and in those undergoing secondary growth, it is replaced by a secondary layer, the periderm
已損傷的莖和根,以及進行次生生長的根莖中,表皮被次生層即周皮代替。The best substrate for broom is river sand, followed by mountain soil and perlite. the time and humidity are the other two factors studied
扦插基質也影響生根率,結果表明,金雀花扦插以河砂為基質效果最好,山泥次之,珍珠巖效果最差。Physiognomy classifies forests based on their overall physical structure or developmental stage ( e. g. old growth vs. second growth )
地貌樣式林根據它們整體物質結構或發展階段(例如原生和次生) 。The stems and rhizomes were observed to differ in cortex - cell layer, perivascular fiber - ring presence, vascular cylinder and pith proportions, vascular bundle number and secondary growth and these differences were associated with their own physiological functions
地上莖和根狀莖之間在皮層細胞層數、周維纖維柱的有無、維管柱和髓所佔比例、維管束束數、次生生長等方面存在差異,這些差異與它們各自擔負的生理功能相關聯。Referring to the achievements of conservation tillage on dry land farming, there is a series of work to be done to develop new tillage techniques to adapt to double cropping system of wheat and maize in shandong province. such work includes controlling the combine traveling along the line, return the stalk to the field after chopped, subsoiling being done in maize ' s growing stage. the advantage of subsoiling is to make the soil inter placed with soft and hard strips, which is good for decreasing runoff and vaporizing, and retaining rain
1 、保護性耕作條件下,普通小麥條播機的播種質量較差,小麥的田間出苗率比傳統耕作低9 . 3 ;保護性耕作小麥冬前地上部分的生長狀況也較傳統耕作小麥差;由於根系的生長條件較為優越,保護性耕作的小麥的根系生長旺盛、分佈廣,越冬後有利於小麥的地上部分生長,大量發生春季分蘗和次生根,幼穗強烈分化,表現出較傳統耕作小麥強的生長優勢,產量提高6左右。The bryophyte life forms there can be grouped into 6 types which are errantia, epipetria, epiphytia, hydro - radicantia, meso - radicantia and dry - radicantia types, out of which the species bf meso - radicantia account for 89. 81 % of the total species in this valley, the species of dry - radicantia account for 11. 57 % and errantia type possess the least species among all types
其中,中生根著型種類最多,占該流域苔蘚植物種數的89 . 81 % ,主要分佈於森林帶;其次為旱生根著型,占該流域苔蘚植物種數的11 . 57 % ;漂浮型種類最少,只佔該流域苔蘚植物種數的1 . 38 % ,且分佈范圍十分有限。The seeds wiii ride the w nd. and bioom again around there
種子會乘著風飛去再次生根發芽Effects of arbuscular mycorrhizal fungi on plant secondary metabolism
叢枝菌根真菌對植物次生代謝的影響Effects of sucrose and light on the growth and production of secondary metabolites in pueraria phaseoloides hairy roots
蔗糖和光對三裂葉野葛毛狀根生長及次生物質產生的影響On the basis of some research findings in recent years, the paper summarizes characteristics and causes of greenhouse soil salinization, and its effects on soil properties, including physical and chemical properties and microorganisms as well
本文根據近年來的相關研究進展,綜述了設施土壤次生鹽漬化的基本特徵、形成原因及其影響因素,並闡述了設施土壤次生鹽漬化對土壤理化性質以及土壤微生物狀況的影響。There is great difference between the content of carotenes of different parts in different varieties : the content of carotenes of phloem is ' higher than xylem ' s to a great extent, and the results showed a descending trend of the content of carotenes from the top of carrot to lower parts
所以對這些品種建議提早採收,以便胡蘿卜素含量保持在較高的水平。胡蘿卜次生韌皮部中的胡蘿卜素含量極顯著的高於次生木質部,胡蘿卜肉質根中自上而下胡蘿素含量呈現遞減的趨勢,胡蘿卜素在胡蘿卜中主要分佈於次生韌皮部和肉質根的上部。Key construction project and likelihood happen serious and secondary the construction project of calamity, must undertake seismic security is evaluated ; the result that evaluates according to seismic security, decide aseismatic fortify asks, undertake aseismatic fortify
重點建設工程和可能發生嚴重次生災難的建設工程,必須進行地震安全性評價;並根據地震安全性評價的結果,確定抗震設防要求,進行抗震設防。In addition, the pith of root and stem is flourishing for prosperous growth period and declining period, the vascular tissue storing the nutrient and providing the nourishment for the biennial plant in next year from abnormal secondary growth is developing in pith, unusual structure eg. epidermis and vice - epidermis, bubble form cell, short pipe numerators and wreath grid types leaf etc. in each organ of pugionium comutum ( l. ) gaertn. had been formed to adapt to dry environment, so the characteristics on appearance and anatomies in pugionium cornutum ( l ) gaertn. has closely of relation with its anti - drought and its adapting to desert environment
此外,葉片旺盛生長期、衰退期根莖具發達的髓,髓內有異常次生生長形成的維管組織,貯藏養分,為沙芥次年形成二年生植株提供營養,沙芥各器官在解剖結構方面都形成了特化結構如具表皮及副表皮、泡狀細胞、短的導管分子及環柵型葉等以適應乾旱的環境,因此沙芥各器官的形態及解剖特點與其抗旱、適應沙漠環境有密切的關系。( 2 ) compared to secondary natural forest, the amount of three main types of microbes in rhizosphere soil of different age of larix olgensis plantation correspondingly decreased largely, enzyme activity in non - rhizosphere soil reduced, the biochemical activities abated, and soil physical and chemical properties deteriorated
( 2 )與天然次生林相比,落葉松人工林不同發育階段根際土壤三大類微生物數量均相應地有較大幅度的降低,非根際土壤酶活性減弱,土壤生化作用強度降低,土壤理化性質變壞。In original and jamming slightly vegetation, because dead roots, branch and leaves back to soil, soil organic matter higher, soil available phosphorus higher, too ; chemical and physical characters of soil were stabilization. the reason were original vegetation have more species and structure of community was stable. the degradation of fertility and structure of soil in secondary vegetation was influenced by change with structure and form of community
在人為干擾小的原生性森林,植物種類豐富,群落結構穩定,植物死根系和枯枝落葉全部回歸土壤,土壤有機質含量高,養分呈有機態為多,故有效磷較高,土壤理化性質較穩定;次生植被群落土壤結構和肥力的退化是由於群落組成和結構的改變導致枯枝落葉成分和土壤發規白山地還小問沙消民俗一非定俗地征王卿喬忡旺w比收財育環境差異而引起,次生植被土壤的退化狀態隨植被退化程度不同而有差異。分享友人