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对1年生苗木,大树基部1年生萌条和大树1年生枝条进行短穗扦插育苗试验表明,苗木和大树基部萌条的扦插成苗率高,苗木质量好,大树枝条扦插成苗率较低,苗木偏冠。扦插苗成活率和生长量与插穗类型、穗长、插穗留叶量、插期等因子有关,苗木扦插苗的生长量比大树萌条扦插苗大,顶芽扦插苗的生长量比无顶芽的大,在1—6cm穗条范围内,插穗越长成活率和生长量越大,对4cm长的穗条以12—15片留叶量为宜,插期以清明前后为好。大树枝条扦插还与无性系、树龄、生长调节剂使用与否密切相关,不同的无性系成苗率差异极显著,树龄越大成苗率越低,使用浓度10%椰汁可以有效地提高成苗率。
The 1-year-old seedlings, large tree base 1-year-old sprouts and 1-year-old tree branches short spike cutting experiment showed that seedlings and large trees at the base of the cutting rate of cutting seedlings, seedlings of good quality, Lower rate, partial crown of seedlings. The survival rate and growth of cutting seedlings were related to the type of cuttings, the length of spikes, the amount of leaves left in cuttings and the number of cuttings. The growth of cutting seedlings was larger than that of cuttings with large sprouts, Sprouts large, 1-6cm in the scope of the spike, the longer the cuttings survival rate and growth, the 4cm long spike to leave the amount of 12-15 pieces is appropriate, insert the Ching Ming before and after as well. Tree cutting is also closely related with clones, tree age and growth regulators. The difference of seedling rate among different clones is extremely significant. The higher the age, the lower the seedling formation rate. Using 10% coconut milk can effectively increase Seedling rate.