木荷和鹅掌楸萃取物及其活性铝溶液对马尾松种子发芽的影响  

Effect of Extracts from Schima superba and Liriodendron chinense and their Activated Aluminum Solution on Seed Germination of Pinus massoniana

作　　者：仝雅娜[1] 丁贵杰[1] 

机构地区：[1]贵州大学造林生态研究所,贵州贵阳550025

出　　处：《浙江林业科技》2010年第2期40-44,共5页Journal of Zhejiang Forestry Science and Technology

基　　金：国家"十一五"科技支撑课题"马尾松大径材与高产脂林培育关键技术研究与示范"(2006BAD24B0301);国家农业科技成果资金项目"马尾松工业用材林良种选用及高产高效栽培技术中试与示范"(2007GB2F200286)

摘　　要：为了研究生化物质对马尾松种子发芽的影响,选择木荷和鹅掌楸的叶和枝作为试验材料,采取CO2萃取法,研究4种不同浓度萃取物等试验条件对马尾松发芽率、发芽势、芽苗的胚根长、胚轴长、鲜重、干重的影响,结果表明:用萃取的4种生化物质的纯溶液和加入少量活性铝溶液(浓度分别为:100、300、500 mg/kg)处理马尾松种子时,马尾松种子的发芽指标均表现低促高抑的现象,其中100 mg/kg的溶液有明显的促进作用,而500 mg/kg的溶液有明显的抑制作用。萃取物溶液中含有低浓度的铝离子能在一定程度上缓和纯生化物质的毒性作用,使生化物质表现出积极的一面。单纯铝离子对于马尾松种子发芽有一定的抑制作用。Extracts were from Schima superba and Liriodendron chinense leaves and branches by CO2 extraction method.Experiment was conducted to study effect of 4 concentrations of extracts on germination rate and energy,radicle and embryo axis length,fresh weight,dry weight.The results showed that Pinus massoniana seeds treated by different concentration（100,300,500 mg/kg） of extracts with 0.2 mmol of activated aluminum solution had different effect.Treatment of 100 mg/kg solution could promote germination while that of 500 mg/kg significantly inhibited germination.

关 键 词：马尾松 生化物质 活性铝 发芽 

分 类 号：S722.1[农业科学—林木遗传育种]