Seed biopriming as a promising approach for stress tolerance and enhancement of crop productivity: a review

Abstract

Chemicals are extensively used in agriculture to increase crop production to meet the nutritional needs of an expanding world population. However, their injudicious application adversely affects soil's physical, chemical, and biological properties, subsequently posing a substantial threat to human health and global food security. Beneficial microorganisms improve plant health and productivity with minimal impact on the environment; however, their efficacy greatly relies on the application technique. Biopriming is an advantageous technique that involves the treatment of seeds with beneficial biological agents. It exhibits immense potential in improving the physiological functioning of seeds, thereby playing a pivotal role in their uniform germination and vigor. Biopriming mediated molecular and metabolic reprogramming imparts stress tolerance to plants, improves plant health, and enhances crop productivity. Besides, it is also associated with rehabilitating degraded land, improving soil fertility, health, and nutrient cycling. Although biopriming has vast applications in the agricultural system, its commercialization and utilization by farmers is still in their infancy. This review aims to critically analyze the recent studies based on biopriming‐mediated stress mitigation by alteration in physiological, metabolic, and molecular processes in plants. Additionally, considering the necessity of popularizing this technique, major challenges and prospects linked to the commercialization and utilization of this technique in agricultural systems have also been discussed.This article is protected by copyright. All rights reserved.

Bio-Priming with Bacillus Isolates Suppresses Seed Infection and Improves the Germination of Garden Peas in the Presence of Fusarium Strains

“…Bio-priming integrates bacterial inoculation with seed hydration by soaking seeds in bacterial suspension for a specific amount of time, which enhances bacterial colonization, activates quicker imbibition, and triggers the metabolic processes related to germination [15]. Thus, bio-priming provides better control against plant pathogens as compared to conventional treatments and increases seed germination, seedling vigor, and plant tolerance to biotic stressors [16]. Moreover, different seed priming techniques, including bio-priming, are often used to improve germination and vigor under abiotic stresses [17].…”