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1、第32卷第9期2013年9月種子(Seed)Vol.32No.9Sep.2013柚木組培瓶苗移植育苗基質(zhì)篩選試驗與分析112111白靈海,莫慧華,梁坤南,李運興,農(nóng)良書,蒙彩蘭(1.中國林業(yè)科學(xué)研究院熱帶林業(yè)實驗中心,廣西憑祥532600;2.中國林業(yè)科學(xué)研究院熱帶林業(yè)研究所,廣東廣州510520)摘要:以炭化樹皮、鋸末、炭化鋸末、杉表土為材料,進行了12個處理的柚木組培瓶苗移植育苗基質(zhì)試驗,結(jié)果顯示:對成活率有促進作用的基質(zhì)有鋸末和杉表土;對保存率有促進作用的的基質(zhì)只有鋸末;炭化樹皮、杉表土對苗高、徑有促進作用;50%炭化樹皮+50%杉表土和80%炭化樹皮+
2、10%炭化鋸末+10%鋸末處理基質(zhì)移植成活率、保存率分別大于95.1%,95.0%,一年生苗平均苗高、苗地徑分別在33.4cm,0.68cm以上。關(guān)鍵詞:柚木;組培瓶苗;育苗;基質(zhì)中圖分類號:S792.119S723.1文獻標(biāo)志碼:A文章編號:1001-4705(2013)09-0010-03SelectionExperimentandAnalysisofNurserySubstrateinTransplantingtheTissueCultureSeedlingsofTectonagrandis1121BAILing-hai,MOHui-hua,LIANGK
3、un-nan,LIYun-xing,11NONGLiang-shu,MENGCai-lan(1.TheExperimentalCenterofTropicalForestry,ChineseAcademyofForestry,PingxingGuangxi532600,China;2.ResearchInstituteofTropicalForestry,ChineseAcademyofForestry,GuangzhouGuangdong510520,China)Abstract:Wecarriedoutsomeexperimentsondifferentn
4、urserysubstrates,e.g.carbonizedbark,sawdust,carbonizedsawdust,topsoilofCunninghamialanceolata,with12differenttreatmentsduringtransplantedthetissuecultureseedlingsofTectonagrandis.Resultsshowsthat(1)sawdustandtopsoilofCunninghamialanceolatacanpromotesurvivalrateoftheseedlings;(2)sawd
5、ustistheonlysubstratethatpromotesthepreservingrate;(3)carbonizedbarkandtopsoilofCunninghamialanceolatacanacceleratethegrowthofseedlingheightanddiameter;(4)thesurvivalrateandthepreservingrateofseedlinginthetreatmentof50%carbonizedbark+50%topsoilofCunninghamialanceolataandthetreatment
6、of80%carbonizedbark+10%carbonizedsawdust+10%sawdustaregreaterthan95.1%and95.0%,andtheaverageheightandaveragediameterofone-year-seedlingsintheabovetreatmentsreach33.4cm,0.68cmrespectively.Keywords:Tectonagrandis;tissuecultureseedlings;nursergsubstrate柚木(TectonagrandisL.f.)屬馬鞭草科落葉或半南、
7、福建、臺灣等地,已有170多年歷史;當(dāng)前可用木材落葉大喬木,干形通直。木材為環(huán)孔材,心材大,淡褐資源銳減,社會需求增加,交易價格攀升,造林積極性3色,比重0.6~0.72g/cm,紋理直,結(jié)構(gòu)細(xì)致而美觀,不斷提高,發(fā)展勢頭大,傳統(tǒng)的撒播、圃地移植培育裸堅韌而有彈性,不翹不裂;含油質(zhì),強度大,耐浸,是航根苗法已不能滿足柚木良種壯苗和規(guī)模發(fā)展的需要;海、軍需、建筑、車廂、家具、雕刻、鑄造木模、貼面板等容器苗較裸根苗具有苗木根系損傷少,培育周期短,可[1,2]珍貴優(yōu)良用材樹種之一。柚木原產(chǎn)于印度、緬甸、造林季節(jié)氣候靈活等優(yōu)點,已在部分優(yōu)良闊葉樹種經(jīng)[3~7]泰國和印
8、度尼西亞,我國引種于廣東、廣西、海南、