Nano ZnO and Bioinoculants Mitigate Effects of Deficit Irrigation on Nutritional Quality of Green Peppers
| Title: | Nano ZnO and Bioinoculants Mitigate Effects of Deficit Irrigation on Nutritional Quality of Green Peppers |
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| Authors: | Bruna Lorrane Rosendo Martins, Kaikí Nogueira Ferreira, Josinaldo Lopes Araujo Rocha, Railene Hérica Carlos Rocha Araujo, Guilherme Lopes, Leônidas Canuto dos Santos, Francisco Bezerra Neto, Francisco Vaniés da Silva Sá, Toshik Iarley da Silva, Whashington Idalino da Silva, Geovani Soares de Lima, Francisco Jean da Silva Paiva, José Zilton Lopes Santos |
| Source: | Horticulturae, Vol 10, Iss 9, p 969 (2024) |
| Publisher Information: | MDPI AG, 2024. |
| Publication Year: | 2024 |
| Collection: | LCC:Plant culture |
| Subject Terms: | Capsicum annuum, drought stress, fruit quality, mineral nutrients, Plant culture, SB1-1110 |
| More Details: | Green peppers (Capsicum annuum L.) are a fruit vegetable with great culinary versatility and present important nutritional properties for human health. Water deficit negatively affects the nutritional quality of green peppers’ fruits. This study aimed to investigate the influence of zinc oxide nanoparticles (ZnONPs), associated with plant growth-promoting bacteria (PGPB), on the post-harvest nutritional quality of green peppers subjected to water deficit. In an open-field experiment, two irrigation levels (50 and 100% of crop evapotranspiration (Etc)), four treatments composed of a combination of ZnONPs, zinc sulfate (ZnSO4), and PGPB (T1 = ZnSO4 via leaves, T2 = ZnONPs via leaves, T3 = ZnONPs via leaves + PGPB via soil, T4 = ZnSO4 via soil + PGPB via soil), and a control treatment (Control) were tested. Water deficit or water deficit mitigation treatments did not interfere with the physical–chemical parameters (except vitamin C content) and physical color parameters (except the lightness) of green peppers. On average, the water deficit reduced the levels of Ca (−13.2%), Mg (−8.5%), P (−8.5%), K (−8.6%), Mn (−10.5%), Fe (−12.2%), B (−12.0%), and Zn (−11.5%) in the fruits. Under the water deficit condition, ZnONPs or ZnSO4 via foliar, associated or not with PGPB, increased the levels of Ca (+57% in the T2 and +69.0% in the T2), P, Mg, and Fe in the fruits. At 50% Etc, the foliar application of ZnONPs in association with PGPB increases vitamin C and mineral nutrients’ contents and nutritional quality index (+12.0%) of green peppers. Applying Zn via foliar as ZnONPs or ZnSO4 mitigated the negative effects of water deficit on the quality of pepper fruits that were enhanced by the Bacillus subtilis and B. amyloliquefaciens inoculation. The ZnONPs source was more efficient than the ZnSO4 source. The water deficit alleviating effect of both zinc sources was enhanced by the PGPB. |
| Document Type: | article |
| File Description: | electronic resource |
| Language: | English |
| ISSN: | 2311-7524 05778948 |
| Relation: | https://www.mdpi.com/2311-7524/10/9/969; https://doaj.org/toc/2311-7524 |
| DOI: | 10.3390/horticulturae10090969 |
| Access URL: | https://doaj.org/article/f0eccd0577894889927e55b86649c3ba |
| Accession Number: | edsdoj.f0eccd0577894889927e55b86649c3ba |
| Database: | Directory of Open Access Journals |
| ISSN: | 23117524 05778948 |
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| DOI: | 10.3390/horticulturae10090969 |
| Published in: | Horticulturae |
| Language: | English |