分生能力

结果表明：合理施肥不仅能够增强大花萱草的分生能力，提前花期2～4d，而且可以提高其观赏价值；

Results showed the rational fertilization not only enhanced the tillering capacity and promote the florescence for 2 to 4 days ahead , but also improved the decorative value .

结果表明：具有较强分生能力的新生茎段和叶片能够得到很高的诱导率，与NAA相比，2,4D在诱导中作用显著。

The results indicated that we could get the high efficiency in callus induction by using the tender branch and leaf because of their strong polarization . 2,4-D was more effective in inducing callus than use NAA .

胚性愈伤组织在悬浮振荡培养中可保持分生能力。

Suspension culture was established from the embryogenetic callus of walnut .

再植苹果苗表现典型的再植病，其症状为：根系分生能力差，生长缓慢，根组织尤其输导根上发生许多黑色病斑，地上部长势差，长梢抽生困难，定植成活率低。

The root of replanted apple seedlings branched poorly and slowly . Lots of pathological black spots were found in root tissue .

叶脉维管组织发育不良，导管分子数目少，木质化程度低，根尖短而细，生长点仅由少数具分生能力的细胞组成，根冠细胞大，但数量少。

Root tip were short and thin , the growing point were only made up of few organized cells , cells of root cap were large but few .

根据煤系烃源岩生排烃模拟实验结果，可以建立演化阶段划分标准，另外，煤岩中显微组分的生烃能力还须进一步研究。

C. The division criterion of evolution stage could be established according to the simulation results .