Silicon mitigates boron deficiency and toxicity in cotton cultivated in nutrient solution

• DOI: 10.1002/jpln.201800398
• Publication Date: 2019-07-09T14:56:49Z
• Authors: Jonas Pereira de ...; Renato de Mello P...; Marcilene Machado...; Guilherme Felisberto
• Keywords: Hydroponics; Dry weight; Gossypium

Abstract Silicon (Si) application, both via foliar application and roots, may be promising to improve plant growth under different biotic or abiotic stresses. In the present study, we investigated whether of Si can also mitigate harmful effects boron (B)‐related nutritional disorders, such as B deficiency, when is inefficient insufficient, toxicity, soil presents high levels B. This enable producers apply preventively, if there a low availability in environment deficiency induced during season due water deficit reducing plant's absorption. The objective this study was investigate influence leaf root on alleviating toxicity cotton. Three experiments were carried out with cotton plants ( Gossypium hirsutum cv. Bayer FM910®), using soilless system. first experiment, determined that highest concentrations obtained stabilized sodium potassium silicate at 0.8 g L −1 (foliar) 0.056 (roots). Experiment 2 indicated nutrient solution associated moderate sufficiency 33.7, 83.6, 130.5 µM , respectively. 3 evaluated effect optimum applications physiology dry weight production subjected sufficiency, toxicity. mitigated by increasing whole‐plant biomass chlorophyll a, b, total chlorophyll, reduced initial maximum fluorescence, thereby improving quantum efficiency photosystem II. Collectively, these results indicate greatest benefit mitigating occurred while supplied more effective against