stem and leaf 中文意思是什麼

stem and leaf 解釋
莖葉圖
  • stem : STEM ＝Scanning transmission electron microscope 掃描透射式電子顯微鏡。n 1 （草木的）莖，干，梗；...
  • and : n. 1. 附加條件。2. 〈常 pl. 〉附加細節。
  • leaf : n （pl leaves）1 葉；〈集合詞〉葉子；茶葉，煙葉。2 花瓣。3 （書刊等的）一張（兩面）。4 金屬薄片，...
  1. With colourless nail polish, study on the stomatic distribution of outer epidermis in the young stem, aged stem and aged leaf sheath, and adaxial and abxial leaf epidermis of young and aged leaves in s. purpurea, z. pendula and c. communis was conducted

    用無色指甲油印痕法對鴨跖草科的紫竹梅、吊竹梅和鴨跖草的幼莖、成熟莖、成熟葉鞘的外表皮和幼葉、成熟葉和上、下表皮的氣孔分佈進行觀察。
  2. With colourless nail polish, study on the stomatic distribution of outer epidermis in the young stem, aged stem and aged leaf sheath, and adaxial and abxial leaf epidermis of young and aged leaves in s. purpurea, z. pendula and c communis was conducted

    摘要用無色指甲油印痕法對鴨?草科的紫竹梅、吊竹梅和鴨?草的幼莖、成熟莖、成熟葉鞘的外表皮和幼葉、成熟葉和上、下表皮的氣孔分佈進行觀察。
  3. Charactreristic of tissue structures of stem and leaf in k - type hybrid wheat and its parents after anthesis

    型雜交小麥901及親本花后莖葉組織結構特徵研究
  4. Yellow - green or yellow chlorosis or brown necrosis in basal areas of older and expanding leaves ; margins curled downwards and leaf expansion irregular and suppressed ; chlorosis and necrosis spreading into interveinal areas of older leaves ; youngest leaves distorted, necrotic and failing to expand ; petioles truncated ; death of stem growing point

    西葫蘆缺硼:老葉和正展開葉的基部黃綠色或黃化或變褐壞死，邊緣向下捲曲和葉片展開不規則和抑制，色斑和壞死斑散布在老葉葉脈間，心葉扭歪、壞死、無法展開，莖生長點枯死
  5. This experiment to adopt the method that paraffin was cut into slices studied the structural growth process on appearance and dissect of pugionium cornutum ( l ) gaertn in germination period and young sprout ; and to adapt wild flower, fruit, seed and cultivated root, stem and leaf of pugionium cornutum ( l. ) gaertn in leaf lushing period and leaf exhausting period from eerduosi city proceeded the research on appearance and anatomies. the result enunciates : the organs of pugiorium cornutum ( l. ) gaertn in root, stem and leaf have started dividing in germination period ; the transporting tissue and storing water tissue in young sprout period has been divided ; the ransporting tissue is flourishing, but the supporting tissue is unflourishing, so the root, stem and leaf of pugionium cormutum ( l ) gaertn is suitable for edibility

    本試驗採用石蠟切片研究了沙芥發芽期、幼苗生長期各器官形態及解剖結構的變化過程；並對采自鄂爾多斯市野生沙芥花、果實、種子及人工栽培的葉片旺盛生長期、葉片生長衰退期的根、莖、葉等材料進行了形態及解剖學研究，結果表明：沙芥發芽期根、莖、葉各器官內組織已開始分化；幼苗期已分化出發達的輸導組織及貯水組織；葉片旺盛生長期各器官具有發達的輸導組織，但機械組織不發達，因此沙芥的根莖葉適于食用。
  6. There are many adaptive changes in the two research subjects ( artemisia. songarica schrenk. and seriphidium. santolinum ( schrenk ) polijak. ) in morphology and anatomy, such as with the increase of the daily age, the root - shoots ratio increased ; the root became stronger ; the ratio of leaf volume and leaf area increased ; the volume of epidermic cell decreased ; the cut - icle and phellem layer on the surface of root thickened. stoma caved in leaf ; epidermal hair of leaf and stem well - developed, palisde tissue developed well, the cell gap decreased ; the spongy tissue disappeared ; leaf is kinds of isolateralthat is the typical xeromorphic structure ; crystal cell and fibric cell increased ; conducting tissue and mechanical tissue developed well ; bundle sheath appeared

    實驗研究的兩種菊科（ compositae ）植物（準噶爾沙蒿（ artemisiasongaricaschrenk ）和沙漠絹蒿（ seriphidiumsantolinum （ schrenk ） poljak . ） ） ，形態解剖方面的變化表現為：隨日齡增加，根長/株高比值日益增大；根系逐漸發達；體積與葉面積比逐漸增大；表皮細胞體積變小；角質層增厚；根外部出現加厚的木栓層；氣孔下陷；葉、莖部的表皮毛密布，柵欄組織日益發達；而細胞間隙日漸變小；海綿組織逐漸消失；葉面結構常為典型旱生結構? ?等葉面；晶細胞及纖維細胞數目增多；輸導組織、機械組織日漸發達；具有維管束鞘等等。
  7. The materials as explant in transformation come from birch leaf, stem segment and leaf stalk, and the spider toxin gene was used as foreign gene for this transformation experiment. it showed that the best explant was the big leaf, on which the transformation frequency was 22 %. by gus detection, there were 43 percent of the plants with kanamycin resistance, and 100 percent of positive result, by pcr amplification, was gotten from random sampling

    利用雙元載體的根癌農桿菌lba4404菌株（ agrobacteriumtumefaciens ） ，含質粒pyhy （目的基因及npt 、 gus基因） ，對白樺試管苗莖段，葉柄，葉片三種外植體進行侵染，結果表明：大葉片生長勢強，為轉基因的最優外植體，轉化率能夠達到22 。
  8. Study on growth and photosynthesis characteristics of grafted melon showed that, growth indexes such as plant height, stem diameter, root fresh and dry weight, stem and leaf of grafted melon in exuberant growth period were all higher than that of ck, while the root activity was improved and photosynthesis was enhanced

    摘要對嫁接甜瓜生長發育及生理代謝的研究結果表明：生長旺盛期嫁接的甜瓜，其蔓長，蔓粗、根、莖、葉的干質量和鮮質量等生育指標均高於對照，且嫁接甜瓜較對照根系活力提高，光合作用增強。
  9. Objective to study the effect of panax quinquefolius saponin, an extraction from stem and leaf of american ginseng, on vascular regeneration in infarcted area, and expressions of vascular endothelial growth factor vegf and basic fibroblast growth.

    目的觀察西洋參莖葉總皂苷panax quinquefolius saponin ， pqs對急性心肌梗死ami大鼠缺血心肌血管內皮細胞生長因子vegf堿性成纖維細胞生長因子bfgf表達及梗死區血管新生的作用。
  10. Fifty nine accessions of soybean [ glycine max ( l. ) merr. ] of 301 ones from huanghuaihai and middle - lower changjiang valleys were tested at seedling stage in two years for their drought tolerance by using the mean membership index value averaged over those of plant height, leaf number, root dry weight, stem and leaf dry weight. 4 tolerant accessions ( rank 1 ) and 2 sensitive ones ( rank 5 ) were identified

    摘要從301份大豆品種中按根系類型選取黃淮海和長江中下游地區代表性材料59份，在苗期乾旱脅迫和非脅迫條件下對地上部和地下部性狀進行2年重復鑒定，發現材料間性狀隸屬函數值具有豐富遺傳變異，以株高、葉齡、根干重和莖葉干重隸屬函數的算術平均數為抗旱綜合指標，從中篩選出漢中八月黃、晉豆14 、科豐1號、圓黑豆等強耐旱型（ 1級）材料和臨河大粉青、寧海晚黃豆等乾旱敏感型（ 5級）材料。
  11. Study on anti - inflammation effect of extracts from sweet potato stem and leaf

    紅薯莖葉提取物抗炎作用的研究
  12. Maize varieties with different digestive rate were analyzed, and it was proved that the dry matter decomposability rate of the stem and leaf in 2 ( superscript nd ) and 3 ( superscript rd ) node above the ear were markedly correlated to the dry matter decomposability rate of the whole plant, whereas less or no correlation between the dry matter decomposability rate and the carbohydrate content of different nodes to that of the whole plant was found

    摘要對不同玉米品種莖節消化性狀進行了分析，從不同莖節莖、葉、莖葉的干物分解率和糖分含量與全莖葉干物分解率的相關性看，雌穗著生節向上和向下2 ~ 3節位的莖、莖葉與全莖葉干物分解率呈高度相關，不同節位葉的干物分解率、糖分含量與全莖葉干物分解率之間相關較低或無相關性。
  13. Length, diameter, density, fresh weight, dry weight, water content, osmotic potential and element concentrations ( ca, mg, na, k, cl ) were determined for each. seedling of b. gymnorrhiza and a. corniculatum were cultured for 60 days on various salinity of seawater ( 0, 5, 10, 15, 20, 30, 40, 50 ) in green house. samples were taken at 3, 7, 11, 15, 22, 30, 45 and 60 days after planting, separated into root, hypocotyl, stem and leaf

    本文研究了福建九龍江口木欖和桐花樹胎生繁殖體從果實形成到發育成熟過程中形態、生物量、含水量、胚軸密度、滲透勢、五種主要礦質元素（ ca 、 mg 、 na 、 k 、 cl ）等的變化和溫室內人工鹽度梯度栽培下木欖和桐花樹成熟繁殖體長成幼苗（ 0 60d ）過程中形態、生物量、含水量、滲透勢、光合蒸騰特性、五種主要礦質元素（ ca 、 mg 、 na 、 k 、 cl ）等的變化；並且在野外自然條件下，跟蹤調查不同灘塗位置下秋茄成熟繁殖體定居成活、自然死亡狀況以及測定幼苗生長過程中（ 1年）形態、生物量、含水量、光合蒸騰特性等的變化。
  14. Determination of flavonoids in tender stem and leaf of ampelosis prossedentata by differential spectrophotometry

    差示分光光度法測定廣西瑤族藤茶中黃酮類成分的含量
  15. This paper discusses how to use exploratory data analysis, specialy stem - and - leaf diagram, to monitor economic statistical data quality

    摘要本文就探索性數據分析方法特別是莖葉圖法如何應用於統計匯總數據質量控制進行了探討。
  16. Study on the content determination of isofraxindin from root, stem and leaf of sarcandra glabra

    草珊瑚根莖葉中異嗪皮啶的研究
  17. The results show that the part of the heavy metal element cumulated in root tissue organ on the growth periods and the part of the heavy metal element discharged besides the plant body with the tissue organ of stem and leaf wilted on the growth periods of the anisodus tanguticus ( maxim. ) pascher

    結果表明，山莨菪在生長周期內吸收的重金屬元素並非全部蓄積在根組織器官中，部分重金屬元素通過年生長周期內的生長發育而隨著地上莖葉部分等組織器官的枯萎被代謝排出植物體外。
  18. Sweet pepper leaves were dripped by 14c - glucose and 14c - sucrose, the tracer experi ment indicated : exogenous sugars could be translocated to every part of plant after being absorbed by leaf, but the centralized distribution to some exuberant organs in growth such as fruit, young stem and leaf, had no relation between organ dry weight and distributive amount ; the absorptivity of 14c - glucose by leaf was higher than that of 14c - sucrose

    用含有14c標記的外源糖（葡萄糖和蔗糖）點滴青椒葉片，示蹤試驗表明：外源糖被葉片吸收后可運轉到植株的各個部位，但集中向果實，幼嫩的莖、葉等生長比較旺盛的庫性器官分配，其分配量與器官干重無關；青椒對外源葡萄糖的吸收率高於蔗糖。
  19. Objective to study the effect of panax quinquefolius saponin, an extraction from stem and leaf of american ginseng, on vascular regeneration in infarcted area, and expressions of vascular endothelial growth factor vegf and basic fibroblast growth factor bfgf in myocardium of rats with acute myocardial infarction

    目的觀察西洋參莖葉總皂苷panax quinquefolius saponin ， pqs對急性心肌梗死ami大鼠缺血心肌血管內皮細胞生長因子vegf堿性成纖維細胞生長因子bfgf表達及梗死區血管新生的作用。
  20. The analysis of isozyme and rapd of seeds dedicate that there were abundant variations on isozyme and genomic dna, there were also ecologi - cal multiplicity between species, ecotypes or plants with differents age in ceratoides l. there were obvious differences between reproductive organ ( seed ) and nutritive organs ( root, stem and leaf )

    同工酶和rapd分析表明，該屬植物種間及生態型間存在明顯的同工酶和dna多態性。生殖器官（種子）與營養器官（根、莖、葉）的同工酶差異顯著。
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