About this Research Topic
Multidimensional interaction of genotypes (G), environment (E), and management (M) in determining crop yields are attracting lots of focus, particularly when considering changing climates over recent decades. This is why plant breeders, soil scientists, and agronomists are now collaborating their efforts under a common domain “GxExM” to develop synergies. As a result, scientists believe that the GxExM approach would guide them in the identification and development of efficient crop varieties that perform best under diverse climatic conditions. Specifically, the impact of GxExM is focusing on the following areas of research:
• Nutrient(s) use efficiency of cereals and other crops
• Breeding for stress (temperature, CO2, metals, drought, etc.) tolerant crop varieties
• Screening of germplasm for onward development of high yielding and stress-tolerant crops
• Site-specific performance/evaluation of bio-fortified crops
Under prevailing climate change scenarios, more focus is needed on the screening and development of genotypes that are not only tolerant to environmental stresses but also improve performance in the uptake of nutrients and yields in different climatic zones under a range of management practices. For example, farmers and policymakers might be interested in understanding how newly released micronutrients-rich (or proteins, vitamin-A rich, etc.) bio-fortified cereal crops would perform on soils that are deficient, medium, or rich in these minerals. While looking into negative impacts of climate change, International Panel on Climate Change (IPCC) also realized that the approach could lead to improved agricultural productivity and suitability to particular crops (not currently being grown over) in certain regions of the world, for example, Northern Europe.
This Research Topic will draw upon research carried out by experts working on cross-disciplinary approaches to focus, among other things, on:
i) Performance of crop genotypes under multiple stress environment(s) like elevated CO2, high temperature, metals polluted environment, and drought
ii) Testing and evaluation of agronomic practices on varietal performance and yields under diverse climatic zones
iii) Interaction among genotypes (G), growth environment (E), and agronomic management (M) (GxExM) for nutrients and other minerals uptake and yields
iv) Field performance of newly introduced bio-fortified crop genotypes in reference to local varieties at scale
v) Screening of germplasm for onward development of high yielding and stress-tolerant crops
Keywords: varietal performance, stress, genotypes, growth environment, drought, climate change, agronomic management
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