摘要
为了探究不同丛枝菌根真菌对甜玉米(Zea mays var.rugose Bonaf.)生长及氮磷吸收的影响,筛选出促进甜玉米生长和氮磷吸收的优良菌种,采用盆栽培养方法,以甜玉米(Zea mays var.rugose Bonaf.)为宿主植物,研究接种摩西斗管囊霉(Funneliformis mosseae,Fm)、球状巨孢囊霉(Gigaspora margarita,Gm)、细凹无梗囊霉(Acaulospora scrobiculata,As)、扭形伞房球囊霉(Corymbiglomus tortuosum,Ct)、地表多样孢囊霉(Diversispora epigaea,De)和根内根孢囊霉(Rhizophagus intraradices,Ri)对甜玉米生长及氮磷吸收的影响。结果表明:接种De处理的甜玉米株高、根长、地上部鲜质量、地上部生物量和磷积累量最高,并显著高于其他处理,其茎粗和地上部氮积累量也达到较高的水平;且主成分分析结果表明,甜玉米接种De菌种综合表现最好。因此,在田间种植甜玉米时,推荐接种De菌种,从而更有利于甜玉米的生长和氮磷养分积累。
A microcosm experiment was conducted to study the effects of different arbuscular mycorrhizal fungi(AMF)on the growth and the nitrogen and phosphorus absorption of sweet corn seedlings to provide reference for the development of AMF.Sweet corn seedlings(Zea mays var.rugose Bonaf)were inoculated with 6 AMF species,Funneliformis mosseae(Fm),Gigaspora margarita(Gm),Acaulospora scrobiculata(As),Corymbiglomus tortuosum(Ct),Diversispora epigaea(De)and Rhizophagus intraradices(Ri),and their growth and uptake of nitrogen and phosphorus were observed.The results showed that the plant height,root length,aboveground fresh quality,aboveground biomass and phosphorus accumulation of sweet corn seedlings inoculated with De were the highest and significantly higher than those of other treatments,and that the stem diameter and aboveground nitrogen accumulation of sweet corn seedlings inoculated with De also reached a higher level.The principal component analysis showed that the comprehensive performance of sweet corn seedlings inoculated with De was the best.Therefore,when sweet corn is planted in the field,it is recommended to inoculate sweet corn with De,which is more conducive to the growth of sweet corn and the accumulation of nitrogen and phosphorus nutrients in sweet corn.
作者
吴晓君
李正飞
郭佩佩
张丽
WU Xiaojun;LI Zhengfei;GUO Peipei;ZHANG Li(College of Tropical Crops,Hainan University,Haikou,Hainan 570228,China)
出处
《热带生物学报》
2023年第2期167-172,共6页
Journal of Tropical Biology
基金
海南省自然科学基金项目(320RC497)
海南大学科研启动基金(KYQD(ZR)1978)。
关键词
丛枝菌根真菌
甜玉米
生物量
氮磷吸收
arbuscular mycorrhizal fungi
sweet corn
biomass
nitrogen and phosphorus uptake
