Assessment of Community Dynamics of Arbuscular Mycorrhizal Fungi in the Rice ( Oryza sativa L.) Rhizosphere and Potential Application as Biofertilizer

Ruwanthika Kalamulla, Dhanushka Sandaruwan, Samantha C. Karunarathna, Steven L. Stephenson, Saowaluck Tibpromma, Abdallah M. Elgorban, Salim Al-Rejaie, Pinnaduwage Neelamanie Yapa () and Nakarin Suwannarach ()
Additional contact information
Ruwanthika Kalamulla: Research Center of Microbial Diversity and Sustainable Utilization, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
Dhanushka Sandaruwan: Faculty of Applied Sciences, Rajarata University of Sri Lanka, Mihintale 50300, Sri Lanka
Samantha C. Karunarathna: Center for Yunnan Plateau Biological Resources Protection and Utilization, College of Biological Resource and Food Engineering, Qujing Normal University, Qujing 655011, China
Steven L. Stephenson: Department of Biological Sciences, University of Arkansas, Fayetteville, AR 72701, USA
Saowaluck Tibpromma: Center for Yunnan Plateau Biological Resources Protection and Utilization, College of Biological Resource and Food Engineering, Qujing Normal University, Qujing 655011, China
Abdallah M. Elgorban: Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
Salim Al-Rejaie: Department of Pharmacology & Toxicology, College of Pharmacy, King Saud University, Riyadh 12211, Saudi Arabia
Pinnaduwage Neelamanie Yapa: Faculty of Applied Sciences, Rajarata University of Sri Lanka, Mihintale 50300, Sri Lanka
Nakarin Suwannarach: Research Center of Microbial Diversity and Sustainable Utilization, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand

Sustainability, 2022, vol. 14, issue 24, 1-18

Abstract: Arbuscular mycorrhizal fungi (AMF) have the potential to maintain the sustainability of rice cultivation via maintaining soil health. The objective of this study was to produce an AMF-based biofertilizer for the rice variety Bg350 using indigenous dominant species of AMF that are adapted to paddy wetland soil conditions in dry, wet, and intermediate zones in Sri Lanka and are co-inoculated with the bacterium Azospirillum . A pot experiment was carried out to evaluate the effectiveness of the produced biofertilizer using the rice variety Bg350. Treatments were inorganic fertilizer, compost, biochar, produced AMF-biofertilizer [1 kg of ground carrier material inoculated with 50 g of AMF propagules and 20 mL of 1.5 × 10 8 (CFU/mL) of Azospirillum ], and the control. A two-factor factorial, completely randomized design was used under sterilized and non-sterilized soil conditions with four replicates. The genera Glomus , Claroideoglomus , and Aculospora were identified as the most common AMFs in paddy soil in all investigated sites. In the 9th week of sampling, AMF root colonization was positively correlated ( p = 0.028) with spore density. In Sri Lanka, for the first time, the highest AMF colonization rates in rice were recorded at 36.40% in the roots of the Bg350 from the Gampaha district. AMF root colonization increased over sampling time and was different according to the interactive effect of fertilizer application and soil condition. The biometric parameters and yield-attributing characteristics were significantly higher in the rice plants grown in sterilized soil, independent of the tested treatments. The number of grains per panicle was significantly similar ( p ≤ 0.05) in the compost, AMF-biofertilizer, and inorganic fertilizer added treatments. It can be concluded that application of paddy soil adapted AMF species as a biofertilizer increased rice plant growth, productivity, and yield.

Keywords: AMF; biofertilizer; root colonization; submerged rice; yield (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/2071-1050/14/24/16537/pdf (application/pdf)
https://www.mdpi.com/2071-1050/14/24/16537/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jsusta:v:14:y:2022:i:24:p:16537-:d:999052

Access Statistics for this article

Sustainability is currently edited by Ms. Alexandra Wu

More articles in Sustainability from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().