Arbuscular Mycorrhizal Fungi Colonization in Upland Rice as Influenced by Agrochemical Application

查看全文 作　　者：Velu [1]RAJESHKANNAN;Chettipalayam Samiappan [1]SUMATHI;Sellamuthu [2]MANIAN

机构地区：[1]Rhizosphere Biology Laboratory,Department of Microbiology,Bharathidasan University,Tiruchirappalli 620 024,India;[2]Department of Botany,Bharathiar University,Coimbatore 641 046,India

出　　处：《Rice science》索引2009年第16卷第4期,共7页

摘　　要：Mycorrhizal status of rice under upland conditions was studied using potted seedlings. Percentage of arbuscular mycorrhizal fungi (AMF) root colonization varied between 17.35% and 37.18% over an age series of 7 to 70 days old rice plants. AMF root colonization was increased up to 35-42 days, beyond which the root colonization steadily declined. The vesicles appeared after two weeks and reached their maximum intensity on the 35th day. The arbuscules were formed late on the 42nd day (2.93%) and slightly varied up to the 70th day (3.03%). Higher dosage of urea application suppressed plant growth whereas the superphosphate treatment had no marked impact on plant growth. Generally, application of these agrochemicals registered less influence on the hyphal colonization of AMF in rice plants, whereas arbuscular colonization was adversely affected by higher dosages of fertilizers. There were pronounced decreases in both the plant growth and their AMF colonization due to the application of systemic fungicides, carbendazim and thiophanate methyl. The application of single sprays of fungicides was less deleterious over multiple sprays. 关键词：丛枝菌根真菌应用农药旱稻定植植物生长甲基托布津金组织

相关文献

参考文献（20）
引证文献（4）
耦合文献（0）

参考文献(20)

引证文献(4)

互联网出版许可证新出网证(渝)字10号全国400电话 - 免长途话费

Arbuscular Mycorrhizal Fungi Colonization in Upland Rice as Influenced by Agrochemical Application

参考文献(20)

引证文献(4)

用户提示