Synergistic effect of Paclobutrazol and silver nanoparticles (AgNPs) control the pod shattering in canola (Brassica napus L.) via physiological interferences: a mechanistic overview

Abstract

The ever-increasing impact of global climate change has profoundly affected crop growth, physiology, and yield characteristics, making them an economic hazard. Canola, a vital crop, is particularly susceptible to environmental challenges at any stage of development, which can have a negative impact on its growth, physiology, and pod formation, ultimately resulting in pod shattering and reduced yield. Canola's rate of return is decreased by mechanical harvesting, which results in pod shattering. The establishment of an abscission layer, triggered by enzymatic and hormonal disruptions, and accompanied by a decline in cell wall stickiness, exacerbates pod shattering. In this context, the potential roles of Paclobutrazol and silver nanoparticles in reinforcing pod strength to withstand shattering. The specific doses of both AgNPs and Paclobutrazol could be done on the aerial parts of plant. These elements facilitate the physiological growth of crops by mitigating the adverse effects of stress on canola, thereby reducing pod shattering and enhancing yield output. This critical review aims to comprehensively explore the physiological, enzymatic, and hormonal-based factors contributing to pod shattering under environmental stresses, while also highlighting the potential mitigation techniques employing Paclobutrazol and silver nanoparticles, to elevate canola yield production. Based on this comprehensive review, it is recommended to organize research experiment to explore the potential of AgNPs and Paclobutrazol in mitigating the pod shattering based yield losses in canola.