火炬树引种试验研究

A study on introduction trial of Rhu styphina

浑江市１９８６年引种的火炬树已开花结实，并繁育成功第二代大炬树。通过研究掌握了大炬树的生物学特性、生长发育规律及播种育苗技术等。还发现了火炬树具有较强的吸尘性，经测定３、４年生大炬树每株吸尘量分别为４．７ｇ和２６．６７ｇ。火炬树枝叶繁茂，花果艳丽，根系发达，萌蘖性强，耐平茬，茎叶含大量单宁，是一种优良的观赏绿化树种，是环保、水保、薪炭林树种以及橡胶工业原料树种。经济价值很高。

Rhus typhina Was introduced into Hunjiang city in 1986.After flowering and seed- bearing,the filial generation(F2)had been bred successfully.The biological characters,growthlawc.scedling nursing techniques and so on had been obtained through the research,also foundit with a relatively strong suction perform,1ance to dust.The determination shows the quantity ofdust:action of each tree of 3 and 4-year-old are 4.70g and 26.67g respectively.This specieshas luxuriant branches and leaves.bright-coloured and beautiful of flowers and fruits,flourishingroot system,a strong sprouting ability and resistance to stumping.There are lots of tannis in thestem and leaves.Rhustyphina not only is a gfor species for ornamentation and afforestation. butalso for fuelwood forest.environmental protection,water conservation and as the raw material inextract industry.The economic value quite high.