the high iaa/aba ratio and zeatin content in bark of p. alba allowed the latent root primodia to resume their growth, and the cuttings could root and survive spontaneously.
银白杨皮部的iaa/aba比值和玉米素含量高,潜伏根原基有迅速恢复生长的条件,能自发生根成活。
latent root primordium was not found in shoots in test tubes. the induced root primordium which originated from the division and differentiation of pith ray cell developed into the adventitious roots.
the experiments showed that the rooting ability of hardwood cuttings was determined by both presence of latent root primodia and balance of endogenous hormones bark.
试验表明,硬枝扦插生根是潜伏根原基存在与否和皮部内源激素平衡两方面的原因决定的。
an economic example is used to illustrate the application of latent root estimator.