Role of nanosilicab to boost the activities of metabolites in Triticum aestivum facing drought stress

Abstract

Drought stress is a threat to agriculture which is decreasing the yield of crops and creating a considerable loss. This research focused on the part played by silicon dioxide nanoparticles (SiO 2 NPs), biofertilizers, and nanosilicab on Triticum aestivum under control and drought stress. Nanosilicab enhanced the germination percentage, germination index, and germination vigor index by 23.07%, 14.49% and, 93.10% under control and 14.42%, 10.52%, and 46.15% under drought. In the pot experiment, the soil was treated with 150 mg/kg SiO 2 NPs, 1% biofertilizer and, 1% nanosilicab before sowing. Nanosilicab increased shoot length and root length by 9.39%, 10.76%, 22.41%, 18.76%, 30.58%, and, 21.56% under control and drought stress conditions. It also increased photosynthetic pigments, osmolytes content, relative water content, membrane stability index, phenol, and avonoid content. The increase in antioxidant activity was signi cantly high by the application of nanosilicab i.e. the augmentation in catalase, peroxidase, and superoxide dismutase was 68.65%, 83.69% and, 85.99% respectively. It also increased the indole acetic acid and cytokinin to 22.28% and 14.79% in comparison to control. The improvement in hundred grain weight and grains per spike by the use of nanosilicab was 36.25%, 38.76%, 27.47%, and 22.59% as compared to control. The positive interaction of nanosilicab with the roots of plants in the rhizosphere improved the growth of plants signi cantly and a potential candidate for application on crops. The novelty of this study lies in the formulation of nanosilicab and its role in drought amelioration.

Nano‐silicon fertiliser increases the yield and quality of cherry radish

“…Recent studies have shown that Si‐based NMs modulate the effect of ABA on plants. For example, soil exposure to 150 mg/kg SiO 2 NPs significantly reduced the ABA content by 44.1% in wheat ( Triticum aestivum L.) as compared to the control 53 . Similar findings were reported with 100 mg/L SiO 2 NP‐treated cotton 33 .…”

“…For example, soil exposure to 150 mg/kg SiO 2 NPs significantly reduced the ABA content by 44.1% in wheat (Triticum aestivum L.) as compared to the control. 53 Similar findings were reported with 100 mg/L SiO 2 NP-treated cotton. 33 In addition, GA 3 can positively regulate plant growth.…”

Improvement of Plant Responses by Nanobiofertilizer: A Step towards Sustainable Agriculture

“…Nanobiofertilizer has been prepared in Iran, and its application increased the amount of proline, carbohydrate, and anthocyanin in Hibiscus sabdariffa [ 124 ] and Foeniculum vulgare [ 144 ] under drought stress [ 145 ]. Jahangir et al [ 125 ] carried out their experiments in Pakistan to show that the combined application of PGPR and Ag NPs increases the weight of Allium cepa facing high salinity. They also reported that the co-application increased the sugar content and the expression of some new proteins in plants.…”

Changes in the Physiological and Morphometric Characteristics and Biomass Distribution of Forage Grasses Growing under Conditions of Drought and Silicon Application

“…Si is beneficial for the growth, development, and yield of many plant species [ 17 ]. The positive effects of Si applications have been reported, including improvements in the intensity of the physiological and metabolic processes [ 18 , 19 ], an increased insect and disease resistance [ 20 ], an improvement in the nutrient imbalance [ 21 ], and an improved tolerance to salt [ 22 ] and droughts [ 23 , 24 ]. In response to droughts, plants stimulate the production of reactive oxygen species (ROS), which causes membrane injuries, protein degradation, and enzyme inactivation, therefore triggering oxidative stress [ 25 ].…”