root caps造句
例句与造句
- both root and root cap are covered by a sheath-like structure called the coleorhiza .
根和根冠被一鞘状结构，即胚根鞘所覆盖。 - they have a physiological role in the root cap and elsewhere, where the starch grains act as statoliths
在根冠及其他部位有重要的生理作用，在那些地方淀粉粒具有平衡石的功能。 - calyptogen a layer of meristematic cells covering the root apical meristem in some plants ( e . g . grasses ) that gives rise to and maintains the root cap
根冠原：在一些植物中覆盖根顶端分生组织的一层具有分生能力的细胞，根冠原可以产生和维持根冠。 - after the period of treatments were prolonged for three days, the contain of sugar reduced again . the growth of roots and plants were retarded severely and the ratios of root cap were increased manifestly . the ratios of root-shoot was stability and the growth almost stopped at the later period of peg ( 6000 ) treatment
牛心朴子根系发达，根冠比大，在土壤水分变化时，植株地上部比较敏感，随土壤水分胁迫程度的加强和胁迫时间的延长，植株生长显著变缓，直至停止生长，而根冠比值则有所加大。 - the result showed that physiological response were mainly affected by concentration of peg and less affected by time of peg ( 6000 ) treatment . relative water content of leaves root activity, and growth of roots and plants showed a less reduction under 10-20 % peg ( 6000 ) treatment, but ratios of root cap, and contains of soluble sugar, contain of pro and potassium showed a less increase . all those just described indexes showed a marked change under 25 % peg treatment
在1020的peg浓度胁迫下，叶片相对含水量、根系活力、根系及地上部生长量下降的幅度较小；根冠比、可溶性糖、脯氨酸(pro)、k~+上升的幅度也较小，而在25的peg浓度胁迫下上述指标发生了很显著的变化，叶片相对含水量、根系活力明显下降，可溶性糖最大含量出现的时间较20浓度胁迫的提早3d，且较20时的最大含量小，并在延长处理3d后又开始下降，根系和地上部的生长受到严重抑制，且地上部影响大于根系，根冠比显著增大，胁迫后期趋于恒定状态，生长几乎完全停止。 - It's difficult to find root caps in a sentence. 用root caps造句挺难的