枝龄、顶芽、IBA对无花果硬枝扦插成苗的影响

枝龄、顶芽、 ＩＢＡ分别对无花果硬枝扦插成苗有极显著的影响。三因素不同水 平的成苗效应分别为：１年生枝极显著大干２－３年生枝，有顶芽极显著大于无顶 芽，１０００ｐｐｍＩＢＡ处理插条１小时极显著大于清水处理。成苗最优组合为有顶芽 的１年生枝用ＩＢＡ处理（８６、７％）。无顶芽的２－３年生枝用ＩＢＡ处理亦有较好的成苗 率（７０．０％）。无花果为皮部生根类型，、不定根的发生、生长基本上与萌芽、展 叶同时进行。

EFFECT OF SHOOT AGE,TIP BUD AND IBA ON THE SEEDLING FOMATION OF HARDWOOD CUTTINGS IN FIG

Highly significant influences of shoot age , tip bud and IBA treatment were found on the seedling formatiou of hardwood cutting in Fig. The results showed that in seedling formation rates, one year old shoots were significantly higher than the 2-3 year old shoots; the shoots with a tip bud were significantly higher than the tipless; the treatmeat with 1000ppm IBA was significantly higher than the water control. The superior treatment combination was one year old shoot age, with a tip bud and treated with IBA (86. 7%). The seedling. formation rate of the treatment combination 2-3 year old shoot age, no tip bud and freated with IBA was also good enough (70. 0%). Fig grows its roots from the cortical layers. Advent it ious root grow up on the underground nodes of the shoots, The format ion and growth of adventitious roots were almost synchronous with the formation of budas and the spreading of the leaves.