不同育苗基質(zhì)對甘薯幼苗生長發(fā)育的影響
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圖分類號：S531 文獻(xiàn)標(biāo)識碼：A DOI編碼：10.3969/j.issn.1006—6500.2025.06.0
Effect of Different Seedling Substrates on the Growth and Development of Sweet Potato Seedlings
DU Fanfan， ZHANG Xiaomei， HOU Wenbang
（HenanUniversityofScienceandTechnologyCollegeofAgriculture/SwetPotatoIndustryInstitute，Luoyang，Henan47Ohia） Abstract：Inordertopromotethedevelopmentofsweetpotatosedlingindustryandexploretheinfluenceofsubstrateonthegrowth ofswetpotatosedings.Tisstudyselectedcultiatedsoilandtwoommercialsedlingsubstratesastestmaterials，withstota tovarietyPushu3astheindicatorvarietyecomparativeexperimentofsedlingsubstratesasondutedinteligtcultiation roomofHenan UniversityofScienceandTechology.Theresultsshowedthattheseedlingefectsofthetwocommercialsubstrates wereoutstanding，withplantheight，stemdiameter，SPAD，freshweight，rootshotratio，andstrongseedlingindexincreasedby 37.81 % ， 3.84% ， 16.93% ，60.49 % ， 42.50% ，and 24.57% on average compared with cultivated soil.The nutrient content of the entire seedling plant significantly increased， with an average increase of 29 % ， 204% ，and 73% in nitrogen，phosphorus，and potassium contentcomparedtoeulivatedsoilorelatioanalysissowdtatteulkensitytotalporositywaterholdingpores，icatter，andtherindicatorsofthesubstrateweresignifcantlyoextremelysignficantlycoelatedwiththegrowthidicatorsofsweet potatoseedling.Inonlusioeorelatioaalysiseteeeicalndmicalprortsofdintsubstatadte growthindicatorsofseepotatosedingsshowedthat tebulkdensityporosity，waterholdingpres，rganicmater，andothpopertiesofsubstraeswererelatedtoseetpotatoseedlinggrowthindicatos.Thegrowthofsdlingsissgnificantlycoelatedandcan be used as a key factor in the selection of sweet potato seedling substrates.
Keywords：seedling substrate;sweet potato;seedling;growth and development
甘薯（IpomoeabatatasL.）作為旋花科無性繁殖作物，是全球重要的糧食作物之一，聯(lián)合國糧食及農(nóng)業(yè)組織（FAO）最新數(shù)據(jù)顯示，截至2020年，全球甘薯的種植面積高達(dá) 8.00×106hm2 ，總產(chǎn)量達(dá)到 1.05× 108t ，亞洲甘薯總產(chǎn)量占全球產(chǎn)量的 62.56% ，中國是全球最大的甘薯生產(chǎn)國，種植面積僅次于水稻、小麥、玉米和馬鈴薯。（剩余7985字）