不同基质处理对蒜头果幼苗生长的影响  

Effects of Different Substrate Treatments on Growths of Malania oleifera Seedlings

作　　者：杨卓颖 梁文汇[1] 黄晓露[1] 李宝财[1] 杨日升 廖健明[1] Yang Zhuoying;Liang Wenhui;Huang Xiaolu;Li Baocai;Yang Risheng;Liao Jianming(Guangxi Forestry Research Institute,Guangxi Key Laboratory of Special Non-wood Forests Cultivation and Utilization,Nanning,Guangxi 530002,China)

机构地区：[1]广西壮族自治区林业科学研究院、广西特色经济林培育与利用重点实验室,广西南宁530002

出　　处：《广西林业科学》2024年第1期49-56,共8页Guangxi Forestry Science

基　　金：广西林业科技推广示范项目(2023LYKJ05)。

摘　　要：为提高蒜头果(Malaniaoleifera)幼苗品质和造林成活率,以泥炭土、轻基质、黄心土、松针、蛭石和珍珠岩为原料,设计9个不同基质处理,测定蒜头果幼苗生长和生物量指标,并分析其与基质理化性质的相关性,结合主成分分析对不同基质处理进行综合评价。结果表明,在不同基质处理下,蒜头果幼苗生长指标均存在差异。T5处理的苗高和地径总生长量均最高,分别为69.39 cm和8.31 mm。T1处理的地上部分鲜质量总重、全株鲜质量、地上部分干质量总重和全株干质量均最高,分别为36.13、69.97、15.57和25.94 g。T8处理的地下部分鲜质量和地下部分干质量均最高,分别为37.03和11.13 g。苗高与土壤密度呈显著负相关,与速效磷含量呈显著正相关,与速效氮和速效钾含量均呈极显著正相关。地径与土壤密度呈极显著负相关,与田间持水量和总孔隙度均呈显著正相关,与速效氮和速效钾含量均呈极显著正相关。幼苗地上部分鲜质量、全株鲜质量和地上部分干质量均与总孔隙度呈显著正相关。全株鲜质量与速效氮含量呈显著正相关。T1处理的叶生物量和全株生物量均最高,综合得分最高;T5处理的苗高和地径均表现最好,叶生物量低于T1处理;T8处理的根系生长最好,最有利于幼苗地下部分生长;这3个基质配方均适用于蒜头果幼苗培育。In order to improve quality of Malania oleifera seedlings and survival rates of afforestation,nine different substrate treatments were designed with peat soils,light substrates,yellow soils,pine needles,vermiculite and perlite.Indexes of growth and biomass of M.oleifera seedlings were measured and correlations among indexes of growth and biomass and physico-chemical properties of substrates were analyzed.Different substrate treatments were comprehensively evaluated by principal component analysis.Results showed that growth indexes of M.oleifera seedlings were different among different substrate treatments.T5 treatment had the highest total growths in seedling height and ground diameter,which were 69.39 cm and 8.31 mm respectively.T1 treatment had the highest total fresh weight of above-ground part(36.13 g),fresh weight of whole plant(69.97 g),total dry weight of above-ground part(15.57 g)and dry weight of whole plant(25.94 g).T8 treatment had the highest fresh weight of under-ground part and dry weight of under-ground part,which were 37.03 and 11.13 g respectively.Seedling height had significantly negative correlation with soil density,had significantly positive correlation with content of available phosphorus,and had extremely significantly positive correlations with contents of available nitrogen and available potassium.Ground diameter had significantly negative correlation with soil density,had significantly positive correlations with field capacity and total porosity,and had extremely significantly positive correlations with contents of available nitrogen and available potassium.Fresh weight of aboveground part,fresh weight of whole plant and dry weight of above-ground part had significantly positive correlations with total porosity.Fresh weight of whole plant had significantly positive correlation with content of available nitrogen.Leaf biomass and whole plant biomass of seedlings in T1 treatment were the highest and comprehensive score of principal component analysis was the best.Seedling height and ground

关 键 词：基质处理 苗高 地径 生物量 主成分分析 蒜头果 

分 类 号：S792.99[农业科学—林木遗传育种]