[1]周晓月,袁洁,石琨,等.丛枝菌根真菌对甘薯生物量、根系形态及钾素吸收的影响[J].江苏农业学报,2022,38(04):939-948.[doi:doi:10.3969/j.issn.1000-4440.2022.04.010]
　ZHOU Xiao-yue,YUAN Jie,SHI Kun,et al.Effects of arbuscular mycorrhizal fungi on biomass, root morphology and potassium uptake of sweet potato[J].,2022,38(04):939-948.[doi:doi:10.3969/j.issn.1000-4440.2022.04.010]
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丛枝菌根真菌对甘薯生物量、根系形态及钾素吸收的影响()
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江苏农业学报[ISSN:1006-6977/CN:61-1281/TN]

卷:
38
期数:
2022年04期
页码:
939-948
栏目:
耕作栽培·资源环境
出版日期:
2022-08-31

文章信息/Info

Title:
Effects of arbuscular mycorrhizal fungi on biomass, root morphology and potassium uptake of sweet potato
作者:
周晓月1; 2; 袁洁2; 石琨1; 2; 汪吉东2; 朱国鹏1; 周其良1; 丁爱芳3
（1.海南大学园艺学院,海南海口570228;2.江苏省农业科学院农业资源与环境研究所/农业部江苏耕地保育科学观测实验站,江苏南京210014;3.江苏临溪农业发展有限公司,江苏常州213000）
Author(s):
ZHOU Xiao-yue1; 2; YUAN Jie2; SHI Kun1; 2; WANG Ji-dong2; ZHU Guo-peng1; ZHOU Qi-liang1; DING Ai-fang3
(1.College of Horticulture, Hainan University, Haikou 570228, China;2.Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences/Scientific observing and Experimental Station for Farmland Conservation (Jiangsu), Ministry of Agriculture and Rural Affairs, Nanjing 210014, China;3.Jiangsu Linxi Agricultural Development Limited Company, Changzhou 213000, China)
关键词:
甘薯; 丛枝菌根真菌; 根系形态; 钾素吸收
Keywords:
sweet potato; arbuscular mycorrhizal fungi; root morphology; potassium uptake
分类号:
S154.3
DOI:
doi:10.3969/j.issn.1000-4440.2022.04.010
文献标志码:
A
摘要:
为探究接种丛枝菌根真菌对甘薯钾吸收的影响，以徐薯28为供试植物材料，以摩西斗管囊霉和幼套近明球囊霉为供试丛枝菌根真菌，设置施钾和不施钾2个处理，以不接种丛枝菌根菌根为对照，利用盆栽试验分析甘薯生物量、根系形态、钾和磷的吸收、根际土壤速效钾和有效磷含量。结果表明，2种丛枝菌根真菌均能够与甘薯建立共生关系，且施钾对丛枝菌根真菌的定殖率没有显著影响。在施钾条件下，接种丛枝菌根真菌（尤其是幼套近明球囊霉）能够协调甘薯地上部分和根部生长，降低干物质向叶片和叶柄的分配，有利于干物质向根部的分配，通过优化甘薯根系形态促进甘薯根系干物质的积累，并且促进根部钾的积累。因此，在施钾条件下接种丛枝菌根真菌（尤其是幼套近明球囊霉）是优化甘薯苗期根系形态、促进根系生长的有效手段，有利于后期甘薯根系的生长及膨大，发挥甘薯的增产潜能。
Abstract:
To investigate the effects of arbuscular mycorrhizal fungi on potassium absorption of sweet potato, sweet potato Xu28 was used as the experimental plant material, and Funneliformis mosseae and Claroideoglomus etunicatum were used as the experimental arbuscular mycorrhizal fungi. Two treatments of potassium application and no potassium application were set up in the experiment. The treatments without inoculation of arbuscular mycorrhizal fungi were used as the control. The biomass, root morphology, potassium and phosphorus absorption, and the contents of available potassium and available phosphorus in rhizosphere soil were analyzed by pot experiment. The results showed that the two arbuscular mycorrhizal fungi could establish symbiotic relationship with sweet potato, and potassium application had no significant effect on the colonization rate of arbuscular mycorrhizal fungi. Under the condition of potassium application, inoculation of arbuscular mycorrhizal fungi (especially C. etunicatum) could coordinate the growth of aboveground parts and roots of sweet potato, reduce the distribution of dry matter to leaves and petioles, and facilitate the distribution of dry matter to roots. By optimizing the root morphology of sweet potato, the dry matter accumulation and potassium accumulation in root were promoted. Therefore, inoculation of arbuscular mycorrhizal fungi (especially C. etunicatum) under the condition of potassium application is an effective means to optimize the root morphology and promote the root growth of sweet potato at seedling stage, which is beneficial to the growth and expansion of roots at later stage, and has the potential to improve the yield of sweet potato.

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备注/Memo

备注/Memo:
收稿日期：2022-04-05基金项目：财政部农业农村部国家现代农业产业技术体系项目(CARS-10-B10-2021、CARS-10-B08-2021)；江苏省农业科技自主创新基金项目[CX(21)-1009];常州市科技支撑计划项目(CE20202032)作者简介：周晓月（1997-），女，江苏扬州人，硕士研究生，主要从事植物生长和养分吸收研究。（E-mail）1428261945@qq.com通讯作者：汪吉东，(E-mail)jdwang66@163.com；周其良，(E-mail)1521259531@qq.com
更新日期/Last Update: 2022-09-06