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Composition and decomposition of rhizoma peanut (Arachis glabrata Benth.) belowground biomass
Roots and rhizomes can play an important role in nutrient cycling, however, few studies have investigated how their decomposition pattern is affected by defoliation and time of the year. This 2-year study evaluated root-rhizome composition and decomposition of a warm-season rhizomatous perennial leg...
Autores principales: | , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9200743/ https://www.ncbi.nlm.nih.gov/pubmed/35705653 http://dx.doi.org/10.1038/s41598-022-14001-7 |
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author | S. Santos, Erick R. B. Dubeux, José C. Sollenberger, Lynn E. B. Siqueira, Michelle C. O. S. van Cleef, Flávia M. Jaramillo, David Q. S. D. Zagato, Luana D. Queiroz, Luana M. Garcia, Liza V. Garcia, Carlos C. Ruiz-Moreno, Martin |
author_facet | S. Santos, Erick R. B. Dubeux, José C. Sollenberger, Lynn E. B. Siqueira, Michelle C. O. S. van Cleef, Flávia M. Jaramillo, David Q. S. D. Zagato, Luana D. Queiroz, Luana M. Garcia, Liza V. Garcia, Carlos C. Ruiz-Moreno, Martin |
author_sort | S. Santos, Erick R. |
collection | PubMed |
description | Roots and rhizomes can play an important role in nutrient cycling, however, few studies have investigated how their decomposition pattern is affected by defoliation and time of the year. This 2-year study evaluated root-rhizome composition and decomposition of a warm-season rhizomatous perennial legume [rhizoma peanut (RP; Arachis glabrata Benth.)] under continuous stocking or when defoliated by clipping every 56 days. A 168-days incubation trial was performed to determine disappearance of biomass and N and changes in acid detergent fiber (ADF), acid detergent insoluble N (ADIN), and C:N ratio. Additionally, three 56-days incubations were performed each year to evaluate the disappearance coefficient (B(0)) and relative decay rate (k). There were no treatment differences in any response for the 168-days incubation. After 168 days, 21 and 60% of initial biomass and initial N remained, respectively. Relative decay rate for OM and N were 0.0088 and 0.0035 g g(−1) day(−1), respectively. Carbon-to-N ratio decreased from 29 at day 0 to 17 at day 168. Concentration of ADIN increased from 6.9 to 19.3 g kg(−1), plateauing at day 79. The B(0) and k for remaining OM and N were greater in late than early season and could be explained by greater N concentration and lesser C:N ratio. Rapid decomposition, difference in C:N ratio from day 0 to 168, and the increase in ADIN concentration during incubation indicate large amounts of root-rhizome-soluble C at initiation of incubation. These data indicate that RP root-rhizome turnover is more responsive to season than defoliation frequency. |
format | Online Article Text |
id | pubmed-9200743 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-92007432022-06-17 Composition and decomposition of rhizoma peanut (Arachis glabrata Benth.) belowground biomass S. Santos, Erick R. B. Dubeux, José C. Sollenberger, Lynn E. B. Siqueira, Michelle C. O. S. van Cleef, Flávia M. Jaramillo, David Q. S. D. Zagato, Luana D. Queiroz, Luana M. Garcia, Liza V. Garcia, Carlos C. Ruiz-Moreno, Martin Sci Rep Article Roots and rhizomes can play an important role in nutrient cycling, however, few studies have investigated how their decomposition pattern is affected by defoliation and time of the year. This 2-year study evaluated root-rhizome composition and decomposition of a warm-season rhizomatous perennial legume [rhizoma peanut (RP; Arachis glabrata Benth.)] under continuous stocking or when defoliated by clipping every 56 days. A 168-days incubation trial was performed to determine disappearance of biomass and N and changes in acid detergent fiber (ADF), acid detergent insoluble N (ADIN), and C:N ratio. Additionally, three 56-days incubations were performed each year to evaluate the disappearance coefficient (B(0)) and relative decay rate (k). There were no treatment differences in any response for the 168-days incubation. After 168 days, 21 and 60% of initial biomass and initial N remained, respectively. Relative decay rate for OM and N were 0.0088 and 0.0035 g g(−1) day(−1), respectively. Carbon-to-N ratio decreased from 29 at day 0 to 17 at day 168. Concentration of ADIN increased from 6.9 to 19.3 g kg(−1), plateauing at day 79. The B(0) and k for remaining OM and N were greater in late than early season and could be explained by greater N concentration and lesser C:N ratio. Rapid decomposition, difference in C:N ratio from day 0 to 168, and the increase in ADIN concentration during incubation indicate large amounts of root-rhizome-soluble C at initiation of incubation. These data indicate that RP root-rhizome turnover is more responsive to season than defoliation frequency. Nature Publishing Group UK 2022-06-15 /pmc/articles/PMC9200743/ /pubmed/35705653 http://dx.doi.org/10.1038/s41598-022-14001-7 Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article S. Santos, Erick R. B. Dubeux, José C. Sollenberger, Lynn E. B. Siqueira, Michelle C. O. S. van Cleef, Flávia M. Jaramillo, David Q. S. D. Zagato, Luana D. Queiroz, Luana M. Garcia, Liza V. Garcia, Carlos C. Ruiz-Moreno, Martin Composition and decomposition of rhizoma peanut (Arachis glabrata Benth.) belowground biomass |
title | Composition and decomposition of rhizoma peanut (Arachis glabrata Benth.) belowground biomass |
title_full | Composition and decomposition of rhizoma peanut (Arachis glabrata Benth.) belowground biomass |
title_fullStr | Composition and decomposition of rhizoma peanut (Arachis glabrata Benth.) belowground biomass |
title_full_unstemmed | Composition and decomposition of rhizoma peanut (Arachis glabrata Benth.) belowground biomass |
title_short | Composition and decomposition of rhizoma peanut (Arachis glabrata Benth.) belowground biomass |
title_sort | composition and decomposition of rhizoma peanut (arachis glabrata benth.) belowground biomass |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9200743/ https://www.ncbi.nlm.nih.gov/pubmed/35705653 http://dx.doi.org/10.1038/s41598-022-14001-7 |
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