逆境胁迫下甜菜生理特性的研究进展

当前影响甜菜生长发育的主要因素有水分、温度、土地盐碱化等,因此,研究甜菜逆境条件下生长和生理特性变化是当前的热点话题。为了研究水分、温度和土地盐碱化对甜菜生长发育的影响,归纳了逆境胁迫对植物生长的影响,总结了逆境下甜菜地上部和根系的形态变化和生理指标变化趋势。叶片是植物重要营养器官之一,主要生理功能是进行呼吸作用、光合作用、蒸腾作用和养分转化作用。根系是植物生长发育的关键部位,起到固定、支撑植物、吸收运输养分的作用。由此得出甜菜对逆境胁迫的响应是通过改变外部形态和生理生化指标而完成的。建议今后进一步研究甜菜和环境间相互作用机制,加强对甜菜产业体系的管理及发展,为提高甜菜的产量和品质提供参考。

The Physiological Characteristics of Beets Under Stress: Research Progress

At present, the main factors affecting the growth and development of sugar beet are water, temperature, soil salinization, etc. Therefore, it is a hot topic to study the changes of growth and physiological characteristics of sugar beet under stress. In order to study the effects of water, temperature and soil salinization on the growth and development of sugar beet, the effects of adversity stress on plant growth were summarized, and the morphological and physiological changes of aboveground parts and roots of sugar beet under stress were reviewed. Leaf is one of the most important vegetative organs of plants, and its main physiological functions are respiration, photosynthesis, transpiration and nutrient transformation. Root system is the key part of plant growth and development, which plays a role of fixing, supporting plants and absorbing and transporting nutrients. It is concluded that the response of sugar beet to adversity stress is accomplished by changing the external morphology and physiological and biochemical indexes. It is suggested that the interaction mechanism between sugar beet and the environment should be further studied in the future, and the management and development of sugar beet industry system should be strengthened so as to improve the yield and quality of sugar beet.