root-shoot ratio meaning in English
根茎比率
Examples
- 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
过去进行的研究表明，干旱胁迫条件下，不仅表达小麦根系形态和构型建成指标的根系数量、根系比表面积、根冠比、根生长势、根水势、根导管直径等发生显著变化，而且表达根系生理指标的伤流液、根呼吸速率、根系质膜透性、膜脂过氧化水平、保护酶及其同工酶等也发生相应改变。 - 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 、随着土壤水分胁迫程度的加重，根系中的可溶性糖呈明显的增加趋势，叶中的可溶性糖则随胁迫的加重而呈下降趋势，说明在干旱胁迫下牛心朴子的同化产物大部分分配于根系之中；脯氨酸( pro )在牛心朴子叶、茎、根的渗透调节中也起着一定的作用，随土壤水分胁迫的加重，其在根、茎、叶中的积累明显增加；而无机离子( k ~ + 、 na ~ + 、 ca ~ ( 2 + ) )在牛心朴子渗透调节中的作用似乎很小。 - 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
实验研究的两种菊科（ compositae ）植物（准噶尔沙蒿（ artemisiasongaricaschrenk ）和沙漠绢蒿（ seriphidiumsantolinum ( schrenk ) poljak . ） ） ，形态解剖方面的变化表现为：随日龄增加，根长/株高比值日益增大；根系逐渐发达；体积与叶面积比逐渐增大；表皮细胞体积变小；角质层增厚；根外部出现加厚的木栓层；气孔下陷；叶、茎部的表皮毛密布，栅栏组织日益发达；而细胞间隙日渐变小；海绵组织逐渐消失；叶面结构常为典型旱生结构? ?等叶面；晶细胞及纤维细胞数目增多；输导组织、机械组织日渐发达；具有维管束鞘等等。