Machado López Eduard, Darghan Aquiles, Flórez Roncancio Víctor Julio
Facultad de Ciencias Agrarias, Universidad Nacional de Colombia, Bogota, Colombia.
Plant Signal Behav. 2025 Dec;20(1):2465234. doi: 10.1080/15592324.2025.2465234. Epub 2025 Feb 17.
The longevity of the rose stem is often affected by the rate of respiration and the evolution in ethylene production, which also favors the development of . Silicon is involved in plant defense, and its application could be a strategy to improve disease control. This research evaluated the effect of foliar and edaphic applications of silicon on the life of the Brighton rose using three sources of liquid silicon applied every 2 weeks in three foliar and edaphic conditions and one control. After harvest, the fresh mass loss, ethylene concentration, O consumption and CO evolution were measured. The number of fallen petals was counted, and the severity of the Botrytis infection was evaluated. The biomass loss of the floral stem was analyzed with profile analysis. For the evaluation of the change in values of O, CO and ethylene, a multivariate semiparametric analysis of variance analysis was used and the generalized estimating equation methodology for the longitudinal binary response of severity. It was found that the soil treatment with lower potassium and soluble silicon was associated with a decrease in ethylene concentration as well as also turned out to be the one that best controlled in post-harvest.
玫瑰茎的寿命通常受呼吸速率和乙烯产生量变化的影响，乙烯产生量的变化也有利于[此处原文缺失相关内容]的发展。硅参与植物防御，其应用可能是改善病害控制的一种策略。本研究评估了叶面喷施和土壤施用硅对布莱顿玫瑰寿命的影响，使用三种液态硅源，在三种叶面和土壤条件下每2周施用一次，并设一个对照。收获后，测量鲜质量损失、乙烯浓度、氧气消耗和二氧化碳释放量。统计掉落花瓣的数量，并评估灰霉病感染的严重程度。用轮廓分析来分析花茎的生物量损失。为评估氧气、二氧化碳和乙烯值的变化，采用多变量半参数方差分析以及针对严重程度纵向二元反应的广义估计方程方法。结果发现，低钾和可溶性硅的土壤处理与乙烯浓度降低有关，并且在收获后对[此处原文缺失相关内容]的控制效果也是最好的。
