Soil application of effective microorganisms and nitrogen alleviates salt stress in hot pepper (Capsicum annum L.) plants
Capsaicin
DOI:
10.3389/fpls.2022.1079260
Publication Date:
2023-01-18T07:00:38Z
AUTHORS (11)
ABSTRACT
The application of effective microorganisms (EMs) and/or nitrogen (N) have a stimulating effect on plants against abiotic stress conditions. aim the present study was to determine impact co-application EMs and N growth, physio-biochemical attributes, anatomical structures, nutrients acquisition, capsaicin, protein, osmoprotectant contents, as well antioxidative defense system hot pepper (Capsicum annum L.) plants. In field trials, were not applied (EMs-) or (EMs+) along with three rates 120, 150, 180 kg unit ha-1 (designated N120, N150, N180, respectively) grown in saline soils (9.6 dS m-1). high levels attenuated salt-induced damages growth yield. EMs+ either N150 N180 increased number, average weight yield fruits by 14.4 17.0%, 20.8 20.8% 28.4 27.5%, respectively, compared treated recommended dose (EMs- × N150). When individually combined accumulation capsaicin observed 16.7 20.8%, protein 12.5 16.7%, proline 19.0 14.3%, total soluble sugars 3.7 7.4%, comparison those integrative EMs- N150. addition, non-enzymatic contents (ascorbate, glutathione) enzymatic activities (catalase, superoxide dismutase, glutathione reductase) antioxidant systems significantly alone under salt Higher (N, P, K+, Ca2+) reduced Na+ acquisition also evidenced response or/and levels. Most features stems leaves recovered supplied N. is undoubtedly opening new sustainable approaches toward enhancing tolerance crops (e.g. pepper).
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