An individual‐based model of seed‐ and rhizome‐propagated perennial plant species and sustainable management of Sorghum halepense in soybean production systems in Argentina
Abstract Perennial plants which propagate through both seeds and rhizomes are common in agricultural and nonagricultural systems. Due to their multifaceted life cycle, few population models are available for studying such species. We constructed a novel individual‐based model to examine the effects...
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doaj-24713af69be5422486365c6b9b41fd572021-03-02T09:05:05ZengWileyEcology and Evolution2045-77582019-09-01917100171002810.1002/ece3.5578An individual‐based model of seed‐ and rhizome‐propagated perennial plant species and sustainable management of Sorghum halepense in soybean production systems in ArgentinaChun Liu0Julio A. Scursoni1Raúl Moreno2Ian A. Zelaya3María Sol Muñoz4Shiv S. Kaundun5Herbicide Bioscience Syngenta Ltd Bracknell UKDepartamento de Producción Vegetal, Facultad de Agronomía Universidad de Buenos Aires Buenos Aires ArgentinaProduct Biology Syngenta Argentina Buenos Aires ArgentinaProduct Biology Syngenta Colombia Santa Fé de Bogotá ColombiaDepartamento de Producción Vegetal, Facultad de Agronomía Universidad de Buenos Aires Buenos Aires ArgentinaHerbicide Bioscience Syngenta Ltd Bracknell UKAbstract Perennial plants which propagate through both seeds and rhizomes are common in agricultural and nonagricultural systems. Due to their multifaceted life cycle, few population models are available for studying such species. We constructed a novel individual‐based model to examine the effects of ecological, evolutionary, and anthropogenic factors on the population dynamics of perennial species. To exemplify the application of the model, we presented a case study of an important weed, Sorghum halepense (L.) Pers. (Johnsongrass), in soybean productions in Argentina. The model encompasses a full perennial weed life cycle with both sexual (seeds) and asexual (rhizomes) propagations. The evolution of herbicide resistance was modeled based on either single genes or quantitative effects. Field experiments were conducted in the species' native environment in Argentina to parameterize the model. Simulation results showed that resistance conferred by single‐gene mutations was predominantly affected by the initial frequency of resistance alleles and the associated fitness cost. Population dynamics were influenced by evolved resistance, soil tillage, and rhizome fecundity. Despite the pivotal role of rhizomes in driving the population dynamics of Johnsongrass, most herbicides target the aboveground biomass, and chemical solutions to control rhizomes are still very limited. To maintain effective (short‐term) and sustainable (long‐term) weed management, it is recommended to combine soil tillage with herbicide applications for suppressing the rhizomes and delaying the evolution of resistance. This novel model of seed‐ and rhizome‐propagated plants will also be a useful tool for studying the evolutionary processes of other perennial weeds, cash crops, and invasive species.https://doi.org/10.1002/ece3.5578ACCase‐inhibiting herbicidesevolution of herbicide resistanceglyphosateJohnsongrassno‐tillagepopulation models |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Chun Liu Julio A. Scursoni Raúl Moreno Ian A. Zelaya María Sol Muñoz Shiv S. Kaundun |
spellingShingle |
Chun Liu Julio A. Scursoni Raúl Moreno Ian A. Zelaya María Sol Muñoz Shiv S. Kaundun An individual‐based model of seed‐ and rhizome‐propagated perennial plant species and sustainable management of Sorghum halepense in soybean production systems in Argentina Ecology and Evolution ACCase‐inhibiting herbicides evolution of herbicide resistance glyphosate Johnsongrass no‐tillage population models |
author_facet |
Chun Liu Julio A. Scursoni Raúl Moreno Ian A. Zelaya María Sol Muñoz Shiv S. Kaundun |
author_sort |
Chun Liu |
title |
An individual‐based model of seed‐ and rhizome‐propagated perennial plant species and sustainable management of Sorghum halepense in soybean production systems in Argentina |
title_short |
An individual‐based model of seed‐ and rhizome‐propagated perennial plant species and sustainable management of Sorghum halepense in soybean production systems in Argentina |
title_full |
An individual‐based model of seed‐ and rhizome‐propagated perennial plant species and sustainable management of Sorghum halepense in soybean production systems in Argentina |
title_fullStr |
An individual‐based model of seed‐ and rhizome‐propagated perennial plant species and sustainable management of Sorghum halepense in soybean production systems in Argentina |
title_full_unstemmed |
An individual‐based model of seed‐ and rhizome‐propagated perennial plant species and sustainable management of Sorghum halepense in soybean production systems in Argentina |
title_sort |
individual‐based model of seed‐ and rhizome‐propagated perennial plant species and sustainable management of sorghum halepense in soybean production systems in argentina |
publisher |
Wiley |
series |
Ecology and Evolution |
issn |
2045-7758 |
publishDate |
2019-09-01 |
description |
Abstract Perennial plants which propagate through both seeds and rhizomes are common in agricultural and nonagricultural systems. Due to their multifaceted life cycle, few population models are available for studying such species. We constructed a novel individual‐based model to examine the effects of ecological, evolutionary, and anthropogenic factors on the population dynamics of perennial species. To exemplify the application of the model, we presented a case study of an important weed, Sorghum halepense (L.) Pers. (Johnsongrass), in soybean productions in Argentina. The model encompasses a full perennial weed life cycle with both sexual (seeds) and asexual (rhizomes) propagations. The evolution of herbicide resistance was modeled based on either single genes or quantitative effects. Field experiments were conducted in the species' native environment in Argentina to parameterize the model. Simulation results showed that resistance conferred by single‐gene mutations was predominantly affected by the initial frequency of resistance alleles and the associated fitness cost. Population dynamics were influenced by evolved resistance, soil tillage, and rhizome fecundity. Despite the pivotal role of rhizomes in driving the population dynamics of Johnsongrass, most herbicides target the aboveground biomass, and chemical solutions to control rhizomes are still very limited. To maintain effective (short‐term) and sustainable (long‐term) weed management, it is recommended to combine soil tillage with herbicide applications for suppressing the rhizomes and delaying the evolution of resistance. This novel model of seed‐ and rhizome‐propagated plants will also be a useful tool for studying the evolutionary processes of other perennial weeds, cash crops, and invasive species. |
topic |
ACCase‐inhibiting herbicides evolution of herbicide resistance glyphosate Johnsongrass no‐tillage population models |
url |
https://doi.org/10.1002/ece3.5578 |
work_keys_str_mv |
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