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1دورية أكاديمية
المؤلفون: Victor Maignan, Benoit Bernay, Patrick Géliot, Jean-Christophe Avice
المصدر: Frontiers in Plant Science, Vol 11 (2020)
مصطلحات موضوعية: plant biostimulants, nitrogen fertilizer, Triticum aestivum, nitrogen remobilization, senescence, phytate, Plant culture, SB1-1110
الوصف: Biostimulants could play an important role in agriculture particularly for increasing N fertilizer use efficiency that is essential for maintaining both yield and grain quality in bread wheat, which is a major global crop. In the present study, we examined the effects of mixing urea–ammonium–nitrate fertilizer (UAN) or urea with five new biostimulants containing Glutacetine® or its derivative formulations (VNT1, 2, 3, and 4) on the physiological responses, agronomic traits, and grain quality of winter wheat. A first experiment under greenhouse conditions showed that VNT1, VNT3, and VNT4 significantly increased the seed yield and grain numbers per ear. VNT4 also enhanced total plant nitrogen (N) and total grain N, which induced a higher N Harvest Index (NHI). The higher post-heading N uptake (for VNT1 and VNT4) and the acceleration of senescence speed with all formulations enabled better nutrient remobilization efficiency, especially in terms of N mobilization from roots and straw toward the grain with VNT4. The grain ionome was changed by the formulations with the bioavailability of iron improved with the addition of VNT4, and the phytate concentrations in flour were reduced by VNT1 and VNT4. A second experiment in three contrasting field trials confirmed that VNT4 increased seed yield and N use efficiency. Our investigation reveals the important role of these new formulations in achieving significant increases in seed yield and grain quality.
وصف الملف: electronic resource
العلاقة: https://www.frontiersin.org/articles/10.3389/fpls.2020.607615/fullTest; https://doaj.org/toc/1664-462XTest
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2دورية أكاديمية
المساهمون: Ecophysiologie Végétale, Agronomie et Nutritions NCS (EVA), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Via Végétale, Interactions Cellules Organismes Environnement (ICORE), Normandie Université (NU)-Normandie Université (NU)-CHU Caen, Normandie Université (NU)-Tumorothèque de Caen Basse-Normandie (TCBN)-Tumorothèque de Caen Basse-Normandie (TCBN)
المصدر: ISSN: 1664-462X ; Frontiers in Plant Science ; https://hal.inrae.fr/hal-03150285Test ; Frontiers in Plant Science, 2020, 11, ⟨10.3389/fpls.2020.607615⟩.
مصطلحات موضوعية: plant biostimulants, Nitrogen fertilizer, Triticum aestivum, Nitrogen remobilization, Senescence, Phytate, Iron bioavailability, Grain quality, [SDV.SA.AGRO]Life Sciences [q-bio]/Agricultural sciences/Agronomy, [SDV.BV]Life Sciences [q-bio]/Vegetal Biology
الوصف: International audience ; Biostimulants could play an important role in agriculture particularly for increasing N fertilizer use efficiency that is essential for maintaining both yield and grain quality in bread wheat, which is a major global crop. In the present study, we examined the effects of mixing urea–ammonium–nitrate fertilizer (UAN) or urea with five new biostimulants containing Glutacetine® or its derivative formulations (VNT1, 2, 3, and 4) on the physiological responses, agronomic traits, and grain quality of winter wheat. A first experiment under greenhouse conditions showed that VNT1, VNT3, and VNT4 significantly increased the seed yield and grain numbers per ear. VNT4 also enhanced total plant nitrogen (N) and total grain N, which induced a higher N Harvest Index (NHI). The higher post-heading N uptake (for VNT1 and VNT4) and the acceleration of senescence speed with all formulations enabled better nutrient remobilization efficiency, especially in terms of N mobilization from roots and straw toward the grain with VNT4. The grain ionome was changed by the formulations with the bioavailability of iron improved with the addition of VNT4, and the phytate concentrations in flour were reduced by VNT1 and VNT4. A second experiment in three contrasting field trials confirmed that VNT4 increased seed yield and N use efficiency. Our investigation reveals the important role of these new formulations in achieving significant increases in seed yield and grain quality.
العلاقة: hal-03150285; https://hal.inrae.fr/hal-03150285Test; PUBMEDCENTRAL: PMC7691253; WOS: 000592443000001
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3صورة
المؤلفون: Victor Maignan, Benoit Bernay, Patrick Géliot, Jean-Christophe Avice
مصطلحات موضوعية: Botany, Plant Biology, Plant Systematics and Taxonomy, Plant Cell and Molecular Biology, Plant Developmental and Reproductive Biology, Plant Pathology, Plant Physiology, Plant Biology not elsewhere classified, plant biostimulants, nitrogen fertilizer, Triticum aestivum, nitrogen remobilization, senescence, phytate, iron bioavailability, grain quality
الوصف: Biostimulants could play an important role in agriculture particularly for increasing N fertilizer use efficiency that is essential for maintaining both yield and grain quality in bread wheat, which is a major global crop. In the present study, we examined the effects of mixing urea–ammonium–nitrate fertilizer (UAN) or urea with five new biostimulants containing Glutacetine® or its derivative formulations (VNT1, 2, 3, and 4) on the physiological responses, agronomic traits, and grain quality of winter wheat. A first experiment under greenhouse conditions showed that VNT1, VNT3, and VNT4 significantly increased the seed yield and grain numbers per ear. VNT4 also enhanced total plant nitrogen (N) and total grain N, which induced a higher N Harvest Index (NHI). The higher post-heading N uptake (for VNT1 and VNT4) and the acceleration of senescence speed with all formulations enabled better nutrient remobilization efficiency, especially in terms of N mobilization from roots and straw toward the grain with VNT4. The grain ionome was changed by the formulations with the bioavailability of iron improved with the addition of VNT4, and the phytate concentrations in flour were reduced by VNT1 and VNT4. A second experiment in three contrasting field trials confirmed that VNT4 increased seed yield and N use efficiency. Our investigation reveals the important role of these new formulations in achieving significant increases in seed yield and grain quality.
الإتاحة: https://doi.org/10.3389/fpls.2020.607615.s005Test
https://figshare.com/articles/figure/Image_5_Biostimulant_Effects_of_Glutacetine_and_Its_Derived_Formulations_Mixed_With_N_Fertilizer_on_Post-heading_N_Uptake_and_Remobilization_Seed_Yield_and_Grain_Quality_in_Winter_Wheat_pdf/13232738Test -
4دورية أكاديمية
المؤلفون: J. Bertheloot, Q. Wu, P.H. Cournède, B. Andrieu
المصدر: Annals of Botany
مصطلحات موضوعية: common pool, functional–structural plant model, light acclimation, nitrogen, remobilization, root uptake, Rubisco turnover, senescence, Triticum aestivum, wheat
الوصف: Background and Aims Simulating nitrogen economy in crop plants requires formalizing the interactions between soil nitrogen availability, root nitrogen acquisition, distribution between vegetative organs and remobilization towards grains. This study evaluates and analyses the functional–structural and mechanistic model of nitrogen economy, NEMA (Nitrogen Economy Model within plant Architecture), developed for winter wheat (Triticum aestivum) after flowering.Methods NEMA was calibrated for field plants under three nitrogen fertilization treatments at flowering. Model behaviour was investigated and sensitivity to parameter values was analysed. Key Results Nitrogen content of all photosynthetic organs and in particular nitrogen vertical distribution along the stem and remobilization patterns in response to fertilization were simulated accurately by the model, from Rubisco turnover modulated by light intercepted by the organ and a mobile nitrogen pool. This pool proved to be a reliable indicator of plant nitrogen status, allowing efficient regulation of nitrogen acquisition by roots, remobilization from vegetative organs and accumulation in grains in response to nitrogen treatments. In our simulations, root capacity to import carbon, rather than carbon availability, limited nitrogen acquisition and ultimately nitrogen accumulation in grains, while Rubisco turnover intensity mostly affected dry matter accumulation in grains. Conclusions NEMA enabled interpretation of several key patterns usually observed in field conditions and the identification of plausible processes limiting for grain yield, protein content and root nitrogen acquisition that could be targets for plant breeding; however, further understanding requires more mechanistic formalization of carbon metabolism. Its strong physiological basis and its realistic behaviour support its use to gain insights into nitrogen economy after flowering.
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5دورية أكاديمية
المؤلفون: Bertheloot, Jessica, Cournède, Paul-Henry, Andrieu, Bruno
المساهمون: Institut de Recherche en Horticulture et Semences (IRHS), Université d'Angers (UA)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-INSTITUT AGRO Agrocampus Ouest, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), Mathématiques Appliquées aux Systèmes - EA 4037 (MAS), Ecole Centrale Paris, Environnement et Grandes Cultures (EGC), Institut National de la Recherche Agronomique (INRA)-AgroParisTech, INRIA, DigiPlante Project
المصدر: ISSN: 0305-7364.
مصطلحات موضوعية: senescence, wheat, rubisco turnover, remobilization, functional-structural plant model, nitrogen, light acclimation, common pool, ECOPHYSIOLOGIE, Triticum aestivum, root uptake, [SDV.BV.BOT]Life Sciences [q-bio]/Vegetal Biology/Botanics
الوصف: Models simulating nitrogen use by plants are potentially efficient tools to optimize the use of fertilizers in agriculture. Most crop models assume that a target nitrogen concentration can be defined for plant tissues and formalize a demand for nitrogen, depending on the difference between the target and actual nitrogen concentrations. However, the teleonomic nature of the approach has been criticized. This paper proposes a mechanistic model of nitrogen economy, NEMA (Nitrogen Economy Model within plant Architecture), which links nitrogen fluxes to nitrogen concentration and physiological processes. A functional-structural approach is used: plant aerial parts are described in a botanically realistic way and physiological processes are expressed at the scale of each aerial organ or root compartment as a function of local conditions (light and resources). NEMA was developed for winter wheat (Triticum aestivum) after flowering. The model simulates the nitrogen (N) content of each photosynthetic organ as regulated by Rubisco turnover, which depends on intercepted light and a mobile N pool shared by all organs. This pool is enriched by N acquisition from the soil and N release from vegetative organs, and is depleted by grain uptake and protein synthesis in vegetative organs; NEMA accounts for the negative feedback from circulating N on N acquisition from the soil, which is supposed to follow the activities of nitrate transport systems. Organ N content and intercepted light determine dry matter production via photosynthesis, which is distributed between organs according to a demand-driven approach. NEMA integrates the main feedbacks known to regulate plant N economy. Other novel features are the simulation of N for all photosynthetic tissues and the use of an explicit description of the plant that allows how the local environment of tissues regulates their N content to be taken into account. We believe this represents an appropriate frame for modelling nitrogen in functional-structural plant models. A companion paper ...
العلاقة: hal-01019789; https://hal.science/hal-01019789Test; PRODINRA: 50646; PUBMEDCENTRAL: PMC3189836; WOS: 000295885900010
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6
المؤلفون: Jessica Bertheloot, Paul-Henry Cournède, Bruno Andrieu
المساهمون: Institut de Recherche en Horticulture et Semences (IRHS), Université d'Angers (UA)-AGROCAMPUS OUEST-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Mathématiques Appliquées aux Systèmes - EA 4037 (MAS), Ecole Centrale Paris, Environnement et Grandes Cultures (EGC), AgroParisTech-Institut National de la Recherche Agronomique (INRA), INRIA, DigiPlante Project, Université d'Angers (UA)-AGROCAMPUS OUEST, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Institut National de la Recherche Agronomique (INRA)-AgroParisTech
المصدر: Annals of Botany
Annals of Botany, Oxford University Press (OUP), 2011, 108 (6), pp.1085-1096. ⟨10.1093/aob/mcr119⟩مصطلحات موضوعية: 0106 biological sciences, senescence, Time Factors, Light, functional-structural plant model, Plant Science, 01 natural sciences, Plant Roots, light acclimation, Soil, wheat, Photosynthesis, root uptake, Triticum, 2. Zero hunger, rubisco turnover, food and beverages, 04 agricultural and veterinary sciences, ECOPHYSIOLOGIE, [SDV.BV.BOT]Life Sciences [q-bio]/Vegetal Biology/Botanics, Nitrogen, Adaptation, Physiological, Model description, remobilization, Protein Transport, Economy, Root uptake, common pool, Ribulose-Bisphosphate Carboxylase, Triticum aestivum, chemistry.chemical_element, Flowers, Biology, Models, Biological, Economy model, Computer Simulation, Desiccation, Nitrogen cycle, Plant roots, business.industry, fungi, Original Articles, 15. Life on land, Plant Leaves, chemistry, Agriculture, 040103 agronomy & agriculture, 0401 agriculture, forestry, and fisheries, business, 010606 plant biology & botany
الوصف: Models simulating nitrogen use by plants are potentially efficient tools to optimize the use of fertilizers in agriculture. Most crop models assume that a target nitrogen concentration can be defined for plant tissues and formalize a demand for nitrogen, depending on the difference between the target and actual nitrogen concentrations. However, the teleonomic nature of the approach has been criticized. This paper proposes a mechanistic model of nitrogen economy, NEMA (Nitrogen Economy Model within plant Architecture), which links nitrogen fluxes to nitrogen concentration and physiological processes. A functional-structural approach is used: plant aerial parts are described in a botanically realistic way and physiological processes are expressed at the scale of each aerial organ or root compartment as a function of local conditions (light and resources). NEMA was developed for winter wheat (Triticum aestivum) after flowering. The model simulates the nitrogen (N) content of each photosynthetic organ as regulated by Rubisco turnover, which depends on intercepted light and a mobile N pool shared by all organs. This pool is enriched by N acquisition from the soil and N release from vegetative organs, and is depleted by grain uptake and protein synthesis in vegetative organs; NEMA accounts for the negative feedback from circulating N on N acquisition from the soil, which is supposed to follow the activities of nitrate transport systems. Organ N content and intercepted light determine dry matter production via photosynthesis, which is distributed between organs according to a demand-driven approach. NEMA integrates the main feedbacks known to regulate plant N economy. Other novel features are the simulation of N for all photosynthetic tissues and the use of an explicit description of the plant that allows how the local environment of tissues regulates their N content to be taken into account. We believe this represents an appropriate frame for modelling nitrogen in functional-structural plant models. A companion paper will present model evaluation and analysis.
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7d6670d7ed8c40e5bb4bd5ab5793e263Test
https://pubmed.ncbi.nlm.nih.gov/21685431Test
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