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通过对四倍体刺槐嫩枝插穗扦插前和扦插后的切片观察,结果表明:(1)在插穗的切口处有愈伤组织,在愈伤组织内未发现产生根原基;(2)四倍体刺槐嫩枝茎内无潜伏根原基,不定根由诱生根原基发育形成,诱生根原基源于髓射线细胞的分裂和分化。
The results showed that: (1) Callus was cut at cuttings of cuttings and no root primordium was found in calli; (2) Four-fold The body of Robinia pseudoacacia rhizome has no latent root primordia, and adventitious roots develop by inducing root primordia, which induces root primordia to divide and differentiate into medullary ray cells.