落地生根是景天科植物,由于叶片肥厚,叶内贮藏大量水分,角质层厚,所以抗旱能力较强.那么它在水中生长怎样呢? 我们将几株落地生根剪枝后插于清水中作试验,一个月后,发现枝条基部发出许多新根,浸没于水下的叶,许多早已从茎上脱落,居然也能逐渐地发出许多新芽.水插第77天,不但插枝根的数量每株达到300条左右,而且每张叶 Pedestal rooted Crassulaceae plants, due to leaf hypertrophy, leaf storage large amounts of water, cuticle thick, so strong ability to resist drought.However, it grows in the water how? We will be a few plants in the water after the root pruning After a month of testing, many new roots were found at the base of the branches, many of which were submerged under the water, many of which had long since fallen off the stems, Strain reached about 300, and each leaf