A5071561260- Soil Carbon and Nitrogen Dynamics
- Plant tissue culture and regeneration
- Crop Yield and Soil Fertility
- Plant nutrient uptake and metabolism
- Seed Germination and Physiology
- Plant Genetic and Mutation Studies
- Legume Nitrogen Fixing Symbiosis
- Mycorrhizal Fungi and Plant Interactions
- Microbial Community Ecology and Physiology
- Plant Molecular Biology Research
- Plant Stress Responses and Tolerance
- Plant-Microbe Interactions and Immunity
- Weed Control and Herbicide Applications
- Pesticide and Herbicide Environmental Studies
- Transgenic Plants and Applications
- Plant Water Relations and Carbon Dynamics
- Chromosomal and Genetic Variations
- Plant Reproductive Biology
- Silicon Effects in Agriculture
- GABA and Rice Research
- Gut microbiota and health
- Plant Micronutrient Interactions and Effects
- Plant Disease Management Techniques
- Agriculture, Plant Science, Crop Management
- Potato Plant Research
Centre National de la Recherche Scientifique
2016-2023
Université de Picardie Jules Verne
1990-2023
Ecologie et Dynamique des Systèmes Anthropisés
2016-2023
Agroécologie
2016-2019
Laboratoire Amiénois de Mathématique Fondamentale et Appliquée
1987-1988
In this review, we present the recent developments and future prospects of improving nitrogen use efficiency (NUE) in crops using various complementary approaches. These include conventional breeding molecular genetics, addition to alternative farming techniques based on no-till continuous cover cropping cultures and/or organic (N) nutrition. Whatever mode N fertilization, an increased knowledge mechanisms controlling plant economy is essential for NUE reducing excessive input fertilizers,...
Journal Article Hormonal Control of Organogenesis and Somatic Embryogenesis inBeta vulgarisCallus Get access T. TÉTU, TÉTU Université de Picardie, U.F.R. Sciences fondamentales et appliquées, Laboratoire d'Androgenése Biotechnologie33, rue Saint-Leu, 80039 Amiens Cédex France Search for other works by this author on: Oxford Academic PubMed Google Scholar R. S. SANGWAN, SANGWAN B. SANGWAN-NORREEL Experimental Botany, Volume 38, Issue 3, March 1987, Pages 506–517,...
Detrez, C., Tetu, T., Sangwan, R. S. and Sangwan-Norreel, B. S., 1988. Direct organogenesis from petiole thin cell layer explants in sugar beet cultured vitro.—J. exp. Bot. 39: 917–926. Plant regeneration was obtained by direct bud formation as well taken (Beta vulgaris L.) plants grown vitro. The buds were mainly induced the blade-petiole transition zone of explants. High frequency observed 10 different breeding lines tested. Organogenesis resulted when excised 8-d-old seedlings on...
A two-year experiment was conducted in the field to measure combined impact of tilling and N fertilization on various agronomic traits related nitrogen (N) use efficiency grain yield maize cultivated presence a cover crop. Four years after conversion no-till, significant increase harvest index, remobilization observed both under no high conditions. Moreover, we that content were higher no-till conditions only when fertilizers applied. Thus, practices based continuous appear be promising for...
Nitrogen (N) is one of the most limiting nutrients for cereal production, especially in wheat, which main crops cultivated globally. To achieve high yields, wheat requires a certain amount nitrogen (N), as N deficiency can lead to decrease yield and thus reduce income farmers. In contrast, excessive applications fertilizer be detrimental both terrestrial aquatic environments. optimize three-year field experiment was conducted evaluate impact different fertilization strategies on various...
Although the physiological role of enzyme glutamate dehydrogenase which catalyses in vitro reversible amination 2-oxoglutarate to remains be elucidated, it is now well established that higher plants preferentially occurs mitochondria phloem companion cells. The Nicotiana plumbaginifolia and Arabidopis thaliana encoded by two distinct genes encoding either an alpha- or a beta-subunit. Using antisense mutants impaired expression genes, we showed leaves stems both beta-subunits are targeted In...
Abstract Reducing the deleterious effects of intensive tillage and fertilization on ecosystem integrity human health is challenging for sustainable agriculture. The use cover crops has been advocated as a suitable technique this purpose, but scientific evidence to support scarce. After four years complete rotation, including wheat, maize, green pea main in ploughing system, we investigated respective combined nitrogen soil chemical biological properties using controlled experiment combining...
A field study was conducted in northern France over two consecutive years to evaluate the combined effect of conventional tillage (CT) vs no till (NT) with or without cover crops (cc) and nitrogen (N) fertilization on various agronomic traits related N use efficiency winter wheat. Five after conversion CT NT, significant increases efficiency, utilization partial factor productivity, apparent recovery fraction remobilization were observed under three regimes (0, 161, 215 kg ha−1). It also...
Salinity is one of the most important stresses that reduces plant growth and productivity in several parts world. Nine Tunisian durum wheat genotypes grown under hydroponic conditions were subjected to two levels salt stress (100 170 mM NaCl) for 21 days. An integrative analysis revealing impact salinity on key phenotypic physiological marker traits was then conducted. Principal component grouped these into three different clusters corresponding absence stress. This also allowed...
Arbuscular mycorrhizal fungi (AMF) play major roles in nutrient acquisition by crops and are key actors of agroecosystems productivity. However, agricultural practices can have deleterious effects on plant–fungi symbiosis establishment soils, thus inhibiting its potential benefits plant growth development. Therefore, we studied the impact different soil management techniques, including conventional moldboard ploughing no-till under an optimal nitrogen (N) fertilization regime absence N...
Arbuscular mycorrhizal fungi (AMF) play a major role in the uptake of nutrients by agricultural plants. Nevertheless, some practices can interrupt fungal-plant signaling and thus impede establishment symbiosis. A field experiment performed over 5-year period demonstrated that both absence tillage nitrogen (N) fertilization improved AMF colonization wheat roots. Moreover, under no-till conditions, N aboveground biomass production did not vary significantly between N-fertilized N-unfertilized...
Abstract In order to improve regenerative potential in Beta vulgaris L. cultural conditions were established for efficient plant regeneration from cotyledon‐derived calli. Organogenic calli initiated at frequencies of 8–59 % with six sugarbeet lines. N6‐benzyl‐ammopurine (1 mg/1) associated 2,3,5 triiodobenzoic acid (0.5 was found be the best combination alter endogenous phytohormonal balance 21 ± 1 day‐old seedlings. Flow cytometry used determine nuclear DNA Content (ploidy) cotyledons, and...
The use of nitrogen (N) fertilizer and glyphosate-based herbicides is increasing worldwide, with agriculture holding the largest market share. agronomic socioeconomic utilities glyphosate are well established; however, our knowledge potential effects applied in presence or absence long-term N fertilization on microbial functional activities availability soil nutrients remains limited. Using an ex situ approach soils that did (N+) not (N0) receive synthetic for 6 years, we assessed impact...