These factors need to be optimised precisely to attain best crop performance as variation in any factor could result in a swayed response. Genotypes, environments, and management practices are the factors that determine crop productivity ( Beres et al., 2020). A general account rather than a specific view on GEM reciprocity is presented. To help the decision support systems GEM interactions need precise scientific analysis and interpretation. For higher productivity a stronger linkage among researchers, extension experts, and farmers is vital. Once a productivity plateau has been reached following optimization of management practices for specified environments, then further improvement of the system can be attained through new genetic interventions. Better crop management has helped realize the genetic potential of crop cultivars in specific settings. The extension service is also crucial for feedback to researchers.
Extension experts are trained to transfer technology and help farmers optimise for better gains. In the face of new challenges plant breeding is receptive to shifts in objectives and strategy. System efficiency indicators are useful for assessing the overall system performance. The highest gains can be achieved if factors in the interaction model work complementarily. Variation in environments and management practices impacts both the quantity and quality of produce. The yield gap which is defined as the difference between yield potential and average farm yield varies in extent among regions ranging from moderately high to alarmingly high. Introduction of improved cultivars causes interactive responses within the farming system which may produce tangible benefits only in the presence of suitable environments and management practices. Crop productivity largely depends on GEM reciprocity and variation in any factor may potentially alter the overall response. Human population growth requires food production to increase at a matching pace. 3School of Life and Environmental Sciences, Plant Breeding Institute and Sydney Institute of Agriculture, The University of Sydney, Narrabri, NSW, Australia.2Environmental Science Center, Qatar University, Doha, Qatar.
0 kommentar(er)
