根冠

Under the condition [0mmol/L,raise in vermiculite] of phosphorus stress, variation in root morphology and biomass among different soybean genotypes at seedling stage were studied, the result shows: At two-leaf age, higher P-efficiency genotypes(K1 and K2) don't develop their potential advantages; at four-leaf age, some characteristics of K1 and K2, such as lateral root number, lateral root length, root absorbent area and dry weight of shoot are all less reduced than those of intermediate P-efficiency genotypes(Z1 and Z2) and of lower P-efficiency genotypes(M1 and M2), and dry weight of root and R/S of higher P-efficiency genotypes are more increased than those of the others.

在磷胁迫[0mmol/L，砂培]条件下，对不同基因型大豆苗期在根系形态、生物量等方面的差异进行了研究，结果表明：磷高效基因型在两叶期并未发挥出其基因型潜力的优势；四叶期，磷高效基因型的侧根数、侧根长、根系吸收面积、茎叶干重等性状的受抑制程度均显著低于磷中、低效基因型，而地下干重、根冠比却受到了较中、低效基因型更强的诱导作用。

Effect of phosphorus fertilizer on Flue-cured tobacco growthIn early days, lacking phosphorus can promote flue-cured tobacco root growth , so improving root cap.

磷用量对烤烟生长发育的影响生长早期，缺磷胁迫会促进烤烟根系的生长，从而提高根冠比。

New root is born from cauline ministry in spring, normally white, part of tip root cap often is green.

新根 在春天从茎部生出，通常白色，先端根冠部分常为绿色。

Root cutting had no significant effect on plant height for all treatments.

以产量最大化为目标，根冠比大的品种存在根系的生长冗余。

It showed that slightly root cutting can stimulate activity and increase yield for varieties with large root/shoot ratio.

根冠比较小的品种二青矮则在不同程度的断根处理中均为大幅度减产，主要由于每穗粒数和结实率有所下降。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。