西南桦穴盘育苗基质配比试验  

Substrate Composition Experiments on Betula alnoides seedlings

作　　者：杨南 杨德军[2] 邱琼[2] 钟萍[2] 张快富[2] 

机构地区：[1]西双版纳国家级自然保护区科研所,云南景洪666000 [2]云南省林业科学院热带林业研究所,云南普文666102

出　　处：《四川林业科技》2017年第1期65-68,共4页Journal of Sichuan Forestry Science and Technology

基　　金：国际热带木材组织(ITTO)资助项目(PD501/08Rev.1[F])

摘　　要：以西南桦幼苗为试验材料,采用单因素完全随机区组设计,开展了育苗轻基质与土壤的混合育苗试验,研究了4种轻基质拌土与纯土作对照的试验,对各生长指标进行方差分析和综合评分法评价其育苗基质的应用效果。结果表明:5种不同的基质配比对西南桦穴盘苗的生长差异显著,基质2的苗高、地径、主根长、须根数、茎叶鲜质量、根鲜质量、全株鲜质量、茎根比最大,其综合评分也最高,达到了3.9196,从而筛选出基质2即V(阔叶树种锯末+鸡粪)∶V(森林土)=2∶1是适宜西南桦穴盘苗生长的最佳基质。Taking Betula alnoides seedlings as experimental material, the plete block design was used to carry out the light substrate and soil mixed single factor randomized com- seedling raising tests on 4 kinds of light mediums mixed with soil, the pure soil was used for the control, and variance analysis and compre- hensive evaluation method on the growth index were adopted to evaluate the effect of the seedling raising substrates. The results showed that the growth difference between 5 kinds of different substrates on Betula alnoides seedlings is significant, and the weight, root fresh weight, whole plant fresh seedling height, diameter, root length, root number, leaf fresh weight, root shoot ratio of substrate 2 exhibited the maximum, its comprehensive score was also the highest,reaching 3.9196. Therefore ,the substrate 2 （broadleaf saw- dust ＋ chicken manure）： （forest soil） = 2：1 should be the optimum substrate for the growth of Betula al- noides seedlings.

关 键 词：西南桦 基质配比 穴盘 苗木生长 

分 类 号：S792.15[农业科学—林木遗传育种]