植物生长促进剂处理马尾松种子造林试验及效果分析

Experiment of Afforestation of Pinus massoniana Seed with Plant Growth Promoter Treatment

采用不同型号、不同浓度植物生长促进剂ABT、GGR处理马尾松种子,观察3 a生马尾松幼林生长表现,结果表明:经处理的马尾松种子育苗造林,对林木生长有持续促进作用。以A1B2C1组合处理,即ABT3号,浓度100 mg/kg、处理时间12 h,3 a生地径与树高生长量最大;A3B2C1组合处理(GGR7号,浓度100 mg/kg,浸种时间12 h)及A6B1C1组合处理(GGR10号,浓度50 mg/kg,浸种时间12 h),在GGR各处理中表现为最佳;无论ABT或GGR,对马尾松幼林生长均有持续促进作用。

Pinus massoniana seeds were processed by plant growth accelerator ABT, GGR that with different type, different concentrations, the growth performances of P. massoniana sapling were observed for 3 years, results showed that： seedling afforestation wit the processed seed of P. massoniarta, has continuously promoting effect on tree growth. With the combination of A1B2C1, as ABT3, concentration of 100 mg/kg, processing time of 12 h, diameter and height increment of 3-year-old was the maximum; combination of AsB2C1 （GGR7, concentration of 100 mg/kg, soaking time of 12 h ） and A6BIC1 combination treatment （GGRIO, concentration of 50 mg/kg, soaking time of 12 h）, its performance in each processing of GGR was the best; whether ABT or GGR, has continue promotion for the growth of young plantation of P. massoniana.