Despite the numerous advances made in our understanding of the physiology and molecular genetics of salinity tolerance, there have been relatively few applications of these to improve the salt tolerance of crops. The most significant advances have historically utilized intraspecific variation, introgression of traits from close crop wild relatives, or, less frequently, introgression from more distant relatives. Advanced lines often fail due to difficulties in the introgression or tracking of traits or due to yield penalties associated with the alleles in nonsaline environments. However, the greatest limitation is that salinity is not a primary trait for breeders. We must close the gap between research and delivery, especially for farmers who have precious few alternatives. These efforts should include a reassessment of old techniques such as grafting current crops with salt-tolerant hybrid rootstocks. Alternatively, future crops can be produced via domestication of salt-tolerant wild species—an approach that is now feasible in our lifetime.

中文翻译：

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耐盐作物：交货时间

尽管我们对耐盐性的生理学和分子遗传学的理解取得了许多进展，但这些技术在提高作物耐盐性方面的应用相对较少。历史上最重要的进展是利用种内变异、来自作物野生近缘种的性状渐渗，或者不太常见的是来自较远亲的性状渐渗。先进的品系常常由于基因渗入或性状追踪的困难或由于与非盐环境中等位基因相关的产量损失而失败。然而，最大的限制是盐度不是育种者的主要性状。我们必须缩小研究和交付之间的差距，特别是对于几乎没有其他选择的农民来说。这些努力应包括重新评估旧技术，例如用耐盐杂交砧木嫁接当前作物。或者，未来的农作物可以通过驯化耐盐野生物种来生产——这种方法现在在我们有生之年是可行的。