Rice Genomics and Genetics 2024, Vol.15, No.3, 142-152 http://cropscipublisher.com/index.php/rgg 149 Figure 2 Ion homeostasis pathways and nitrogen metabolism of rice under saline-alkali stress (Adopted from Ganapati et al., 2022) Image caption: The figure shows the regulatory mechanism of rice under saline-alkali stress to maintain ion homeostasis and growth throughNa+/K+ transport, calcium signaling, antioxidant mechanisms and nitrogen metabolism pathways (Adopted from Ganapati et al., 2022) The study of the literature on nutrient content and yield in rice highlights several critical findings. Genetic relationships between grain yield and nutrient contents, such as protein and fat, have been identified, with significant negative correlations observed between nutrient contents and yield traits like brown rice recovery and grain yield (Inthapanya et al., 2000). Nitrogen utilization efficiency (NUE) has been shown to have significant positive effects on grain yield, with variations in NUE among different rice genotypes. Quantitative trait loci (QTL) mapping has revealed numerous QTLs associated with both grain yield and micronutrient contents, suggesting potential for biofortification breeding (Yu et al., 2009).
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