【摘要】 【目的】为了深入探究甘蔗发芽阶段的生理变化规律。【方法】研究甘蔗在不同发芽阶段中营养物质和激素含量等重要生理特性的变化。【结果】甘蔗的发芽阶段一般需要11 d的时间来完成。在这一过程中，甘蔗的发芽速度呈现出先上升后下降的趋势。在发芽阶段，甘蔗内部的多种激素如脱落酸(ABA)、水杨酸(SA)、赤霉素(GA7)和吲哚乙酸(IAA)等与发芽时期有极显著的正相关性。这表明这些激素在甘蔗发芽过程中扮演着重要的角色。与此同时，细胞分裂素类激素与发芽速度呈极显著或显著的负相关，这表明它们在发芽阶段的不同时期可能具有不同的作用。研究还发现蔗糖和淀粉的含量随着发芽时期的推进而下降，而还原糖的含量则呈先升高后降低的趋势。多种相关酶类也发挥了重要作用，表明在甘蔗发芽过程中，糖类的代谢和积累可能受到精细地调控，以满足发芽阶段不同时期的需求。【结论】甘蔗发芽需要11 d,在此期间，多种激素、糖代谢相关酶类和生理指标与甘蔗发芽进程和发芽速度呈显著相关性。更多还原

【Abstract】 【objective】In order to deeply explore the physiological changes in the sprouting stage of sugarcane, 【Methods】our study investigated in detail the changes of important physiological characteristics, such as nutrient and hormones contents, in different sprouting stages of sugarcane. 【Results】The sprouting stage of sugarcane generally takes 11 days to complete. During this period, the sprouting rate of sugarcane showed an ascending and subsequently descending trend. During the sprouting stage, a number of hormones such as abscisic acid(ABA), salicylic acid(SA), gibberellin(GA7) and indole acetic acid(IAA) within sugarcane had highly significant positive correlations with the sprouting period. This suggests that these hormones play an important role in the sprouting process. Meanwhile, cytokinin-like hormones showed highly significant or significantly negative correlation with the sprouting rate, suggesting that they may have different roles at different periods within the sprouting stage. It was also found that the content of sucrose and starch decreased with the advancement of the sprouting period, while the content of reducing sugar content tended to increase and then decrease. A variety of related enzymes also played important roles, suggesting that the metabolism and accumulation of sugars during sugarcane sprouting may be finely regulated to meet the demands at different periods within the sprouting stage.【Conclusion】Sugarcane germination requires 11 days, during this period a variety of hormones, sugar metabolism-related enzymes, and physiological indicators are significantly correlated with the process and speed of sugarcane sprouting.更多还原