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一年中可进行短穗扦插的时间较长,一般地区为2～10月,南部地区几乎全年都可以进行。然而,在不同时期的效果就不一样。因此,可以根据插穗的发根情况、扦插苗的长势以及扦插的经济效果,把扦插时期划分为最适期、适宜期、次适宜期及不适宜期。各时期的主要指标如下: 1.最适扦插期插穗发根迅速(插后30～50天可发根);成活率高(中小叶种一般应在80％以上,大叶种的成活率目前尚不稳定,差异较大,暂不确定);苗木生长健壮(平均苗高在30厘米以上);合格苗(苗高15厘米以上)占总苗数的90％以上。
Short cuttings can be planted for a long time in a year, generally from 2 to October, and the southern region can be practiced almost year-round. However, the effect is different at different times. Therefore, according to the cuttings of the root conditions, the growth of cutting seedlings and the economic effects of cutting, the cutting period is divided into the most suitable period, the appropriate period, the appropriate period and inappropriate period. The main indicators of each period are as follows: 1. The most suitable cuttage cutting root hair quickly (after 30-50 days can be rooted); high survival rate (medium leaflet species should generally be above 80%, the survival rate of large leaf species present Not yet stable, the difference is larger, temporarily uncertain); seedlings grow robust (average height above 30 cm); qualified seedlings (15 cm above seedling height) accounted for more than 90% of the total number of seedlings.