The effect of ascorbic acid and bio fertilizers on basil under drought stress

Abstract

Evaluate the effect of ascorbic acid application and coexistence of Mycorrhiza fungus and Azospirillium on basil (Ocimum basilicum L.) under drought stress. This experiment was performed as a split factorial in a randomized complete block design with three replications in the crop year 2017-2018 in Shahriar, Iran. In this experiment, irrigation was the main factor in three levels, including drought stress based on 40-70-100 mm from the evaporation pan of class A. Biofertilizer including growth-promoting bacteria (Azospirillium) and mycorrhiza fungus in four levels, including a(Non-consumption) B (Seeds of growth-promoting bacteria (Azospirillium)) C (Consumption of mycorrhiza fungus as seeds) D (Concomitant use of growth-promoting bacteria Azospirillium with mycorrhiza fungi as seeds) and ascorbic acid in two levels of foliar application, including A (Absence Application of ascorbic acid) and B (Application of ascorbic acid (two days after irrigation treatment)) was considered as a factorial factor. The results showed that the highest biological yield was obtained in drought stress of 40 mm and application of biological fertilizers in the form of mycorrhiza application with an average of 3307.1 kg/ha, which was about 70% more than 100 mm evaporation stress and no application of biological fertilizer. The use of ascorbic acid under drought stress conditions improved by 10%, the essential oil using ascorbic acid evaporated under drought stress conditions of 100 mm. As a general conclusion, the use of ascorbic acid and Mycorrhiza + Azospirillium biological fertilizer improved the quantitative and qualitative characteristics of basil under drought stress.

Pyruvic acid as attenuator of water deficit in cotton plants varying the phenological stage

“…After perceiving water stress, plants release a series of metabolites that act coordinately to minimize damage to their cells, storing amino acids, sugars, mineral ions, hormones and proteins, to try to deal with stress (Hamidi et al, 2024). The agility of response to minimize the production of reactive species and accelerate the synthesis and accumulation of compatible osmoprotectants and solutes is what differentiates a drought-sensitive from a drought-tolerant genotype (Barbosa et al, 2021;Osakabe et al, 2014;Lisar et al, 2012).…”

Dehydrin CaDHN2 Enhances Drought Tolerance by Affecting Ascorbic Acid Synthesis under Drought in Peppers

“…Augmenting the endogenous AsA levels with genetic engineering or exogenous application has been demonstrated as an effective strategy to alleviate the deleterious effects of environmental stress on plant physiology [21][22][23]. Notably, the application of AsA has been shown to significantly enhance parameters such as the germination rate, germination percentage, and seedling fresh biomass [20,[24][25][26]. Furthermore, AsA has been observed to enhance several physiological aspects of plants, which improves proline levels, relative water content (RWC), leaf anatomical characteristics, and chlorophyll concentration.…”