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UM6P CEDOC-AgBS: Defining "water use-ideotypes" in crop mixtures - Benguerir

Enseignement - Secteur Enseignement / Formation

  • Moins de 1 an
  • 1 poste(s) sur Marrakech et région - Maroc
  • Bac +5 et plus Minimum

Extraversion Organisation Respect des règles Besoin de réflexion Recherche de nouveauté

  • CDD
  • Télétravail : Non
Publiée il y a 229 jours sur ReKrute.com - Postulez avant le 12/09/2023

Entreprise :

Mohammed VI Polytechnic University is an institution dedicated to research and innovation in Africa and aims to position itself among world-renowned universities in its fields The University is engaged in economic and human development and puts research and innovation at the forefront of African development. A mechanism that enables it to consolidate Morocco’s frontline position in these fields, in a unique partnership-based approach and boosting skills training relevant for the future of Africa. Located in the municipality of Benguerir, in the very heart of the Green City, Mohammed VI Polytechnic University aspires to leave its mark nationally, continentally, and globally.

Poste :

Water deficits are the major limitation in increasing crop yields in many regions of the world. Various plant traits that might result in yield increases in water-limited environments have been vigorously discussed for decades (Ray & Sinclair, 1998; Ghanem and Sinclair, 2020). Changing plant water use patterns in order to conserve more water in the soil and delay the occurrence of water stresses later in the crop cycle is a physiological strategy that allows increased yield in drought-prone environments. Only recently, have two specific traits received major attention to achieve conservative soil water use. Both traits are based on partial stomatal closure under specific environmental conditions to limit transpiration rate (TR). The first trait is partial stomatal closure at high levels of soil water contents when soil water content decreases (Sinclair and Ludlow, 1986; Sinclair and Muchow, 2001; Sinclair et al., 2010, Ghanem and Sinclair, 2020), and the other trait is partial stomatal closure under elevated atmospheric vapor pressure deficit (VPD) (Sinclair et al., 2005, 2017; Guiguitant et al., 2017). Both traits, leading to conservative phenotypes regarding soil water use (“Water-saving” phenotypes) are susceptible to modify soil water use dynamics along the crop cycle and to result in higher amounts of soil moisture available during critical reproductive phases in comparison to more ‘consumptive’ risk-taker phenotypes (“Risk-taking” phenotypes). So far, these two traits have been studied in plants growing in monospecific and monovarietal cropping systems and it has not been established if such phenotypes are determined only by genotypes or by their environment. Indeed, it has been shown that the dynamic of processes related to transpiration could be modified when the neighboring plants are genetically different (Bacsó et al., 2008; Grossiord et al., 2014, Yu et al., 2019). However, these studies have only been performed on trees (oak and poplar) or non-crop species (Arabidopsis). Transpiration response to VPD or soil drying has never been studied in plant communities and analyzed in the framework of plant-plant competition or facilitation interactions. Main Objectives: By combining high throughput physiological phenotyping, and field trials the thesis aims at: 1. Estimating water behavior/water budget of contrasting genotypes (water-saving and risk-taking) on both cereal and legume species grown growing in monocropping using high throughput precision phenotyping platforms. 2. Investigating if water-saving traits are conserved under intercropping/mixed cropping scenarios. 3. Inferring proxies for water use behaviors obtained under a high throughput close-to-field precision phenotyping platform (objective #1) that would be used under field conditions. Responsibilities and tasks planned: The work will focus on: ­ Field screening and evaluation of large germplasm collection for agronomic and physiological target traits ­ Controlled conditions’ experiments under different nutrients/water treatments ­ Lab. experiments and evaluation of physiological traits in response to different water/nutrients treatments. ­ Bibliographic review ­ Data collection, treatment and analysis ­ Reports and scientific publications. Skills required for the position: The candidate must have: • Master's degree or equivalent degree in agronomy, plant physiology, abiotic stress resistance, • Minimum knowledge in principals of phenotyping for abiotic stress resistance, • Experience in using R software for data analysis, • An appropriate scientific background allowing him/her to deal with research questions, being able to mobilize the main experimental approaches available in the field and under controlled conditions • Sufficient scientific and methodological insight to understand the level of relevance of research approaches and to be able to combine them in an astute way in the analysis, definition, and resolution of project problems • A minimum experience allowing him/her to move forward quickly and efficiently in a bibliographic analysis on a given theme and in the writing of scientific journals and articles. • Have experience in carrying out research and ability to learn • Rigor / motivation, good communication skills, Teamwork • Fulfil the English language requirement.

Applications and selection procedure: The application folder must contain: ­ * Cover letter outlining research experience, achievements, research interests and how the candidate’s scientific profile relates to the required position, ­ * Curriculum vitae, ­ * Names and contact information of two reference persons

Profil recherché :

Skills required for the position:

The candidate must have:

• Master's degree or equivalent degree in agronomy, plant physiology, abiotic stress resistance,

• Minimum knowledge in principals of phenotyping for abiotic stress resistance,

• Experience in using R software for data analysis,

• An appropriate scientific background allowing him/her to deal with research questions, being able to mobilize the main experimental approaches available in the field and under controlled conditions

• Sufficient scientific and methodological insight to understand the level of relevance of research approaches and to be able to combine them in an astute way in the analysis, definition, and resolution of project problems

• A minimum experience allowing him/her to move forward quickly and efficiently in a bibliographic analysis on a given theme and in the writing of scientific journals and articles.

• Have experience in carrying out research and ability to learn

• Rigor / motivation, good communication skills, Teamwork

• Fulfil the English language requirement.

Adresse de notre siège :

Lot 660, Hay Moulay Rachid, Ben Guerir 43150

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Extraversion Organisation Respect des règles Besoin de réflexion Recherche de nouveauté

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