- 根莖比率
- root: vi. 〔美俚〕應(yīng)援，聲援；支持，贊助；歡呼，喝彩。
- shoot: vt. (shot ) 1.發(fā)射；射(箭)；開(槍)；放 ...
- ratio: n. (pl. ratios) 1.比，比率，比值；比例 ...
- root shoot ratio: 根莖比
- shoot-root ratio: 條根比率
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root-shoot ratio中文什么意思
- 根莖比率
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例句與用法
- Studies have been made shown that under water stress , not only root weight , root specific surface area , root - shoot ratio , root growing potential , root water potential , root vessel diameter , etc which express the indexes of wheat root morphology and architecture have significantly changed , but also bleeding sap , root respiratory rate , root plasma membrane permeability , plasmalemma peroxide level , root protective enzymes and its isoenzymes etc which express root physiological indexes have changed correspondingly
過去進(jìn)行的研究表明，干旱脅迫條件下，不僅表達(dá)小麥根系形態(tài)和構(gòu)型建成指標(biāo)的根系數(shù)量、根系比表面積、根冠比、根生長(zhǎng)勢(shì)、根水勢(shì)、根導(dǎo)管直徑等發(fā)生顯著變化，而且表達(dá)根系生理指標(biāo)的傷流液、根呼吸速率、根系質(zhì)膜透性、膜脂過氧化水平、保護(hù)酶及其同工酶等也發(fā)生相應(yīng)改變。 - The results indicated that cynanchumkomarovii is sensitive to soil water from root to shoot , which apparently become slower and even stopped growing with water stress aggravation and the time of stress increase , but the root - shoot ratio increased . the soluble sugar is primary osmolyte in roots of cynanchum komarovii , which increased markedly with water stress aggravation , while soluble sugar in leaves decrease . the results showed that assimilation of cynanchum komarovii mostly distributed to root
5 、隨著土壤水分脅迫程度的加重，根系中的可溶性糖呈明顯的增加趨勢(shì)，葉中的可溶性糖則隨脅迫的加重而呈下降趨勢(shì)，說明在干旱脅迫下牛心樸子的同化產(chǎn)物大部分分配于根系之中；脯氨酸( pro )在牛心樸子葉、莖、根的滲透調(diào)節(jié)中也起著一定的作用，隨土壤水分脅迫的加重，其在根、莖、葉中的積累明顯增加；而無機(jī)離子( k ~ + 、 na ~ + 、 ca ~ ( 2 + ) )在牛心樸子滲透調(diào)節(jié)中的作用似乎很小。 - 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(shí)驗(yàn)研究的兩種菊科（ compositae ）植物（準(zhǔn)噶爾沙蒿（ artemisiasongaricaschrenk ）和沙漠絹蒿（ seriphidiumsantolinum ( schrenk ) poljak . ） ） ，形態(tài)解剖方面的變化表現(xiàn)為：隨日齡增加，根長(zhǎng)/株高比值日益增大；根系逐漸發(fā)達(dá)；體積與葉面積比逐漸增大；表皮細(xì)胞體積變小；角質(zhì)層增厚；根外部出現(xiàn)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(fā)達(dá)；而細(xì)胞間隙日漸變??；海綿組織逐漸消失；葉面結(jié)構(gòu)常為典型旱生結(jié)構(gòu)? ?等葉面；晶細(xì)胞及纖維細(xì)胞數(shù)目增多；輸導(dǎo)組織、機(jī)械組織日漸發(fā)達(dá)；具有維管束鞘等等。