亚麻耐盐碱性研究进展

Research Progress on Salt and Alkali Tolerance of Flax

土壤盐碱化严重威胁农业生产,亚麻作为一种重要的经济作物,其耐盐碱特性备受关注。本研究通过查阅国内外相关文献,综合分析亚麻耐盐碱的特性表现、机制研究、种质资源筛选、育种进展,以及在盐碱地种植的实际应用等方面。深入探讨亚麻对盐碱胁迫的响应机制和耐盐碱能力的提升途径。部分亚麻品种能够在轻度至中度盐碱环境下生长,但生长速度较正常土壤条件下有所减缓。随着盐碱程度的增加,亚麻的株高、分枝数和生物量等指标明显下降。在盐碱胁迫下与亚麻耐盐碱相关基因的表达水平发生显著变化。不同品种的亚麻在耐盐碱能力上存在较大差异。目前,已确定了若干耐盐碱能力较强的亚麻品种,这些品种在盐碱地种植中具有更大的潜力。虽然亚麻耐盐碱研究已取得一定成果,但仍面临诸多挑战。亚麻耐盐碱机制尚未完全明确,育种技术有待进一步提高,且环境因素对亚麻耐盐碱性影响较大。未来需要深入研究耐盐碱机制,创新育种技术,加强多学科合作,加大耐盐碱亚麻品种的推广应用,以实现亚麻在盐碱地的高效种植和盐碱地的可持续开发利用,为农业可持续发展做出贡献。

Soil salinization seriously threatens agricultural production.Flax,as an important economic crop,its salt-tolerant and alkali-tolerant characteristics have attracted much attention.This research aims to comprehensively review the research progress of flax's tolerance to salt and alkali,providing a theoretical basis for improving the adaptability of flax in saline-alkali soil and promoting the development and utilization of saline-alkali land.By consulting relevant domestic and foreign literature,a comprehensive analysis was conducted on aspects such as the characteristic performance,mechanism research,germplasm resource screening,breeding progress of flax s tolerance to salt and alkali,and practical application in planting in saline-alkali land.The response mechanism of flax to salt-alkali stress and the ways to enhance its salt and alkali tolerance were deeply discussed.Some flax varieties can grow in mild to moderate saline-alkali environments,but the growth rate slows down compared to normal soil conditions.With the increase of salinity and alkalinity,indicators such as plant height,branch number,and biomass of flax decrease significantly.Under salt-alkali stress,the expression levels of genes related to flax s salt and alkali tolerance change significantly.Different varieties of flax have significant differences in salt and alkali tolerance.Currently,several flax varieties with strong salt and alkali tolerance have been identified,and these varieties have greater potential in planting in saline-alkali land.Some progress has been made in the research of flax s salt and alkali tolerance,but it still faces many challenges.The mechanism of flax′s salt and alkali tolerance is not yet fully clear,breeding techniques need to be further improved,and environmental factors have a great influence on flax's salt and alkali tolerance.In the future,it is necessary to conduct in-depth research on the salt and alkali tolerance mechanism,innovate breeding techniques,strengthen multidisciplinary cooperation,increase the promotion and application of salt and alkali-tolerant flax varieties,to achieve efficient planting of flax in saline-alkali land and the sustainable development and utilization of saline-alkali land,and contribute to the sustainable development of agriculture.