PreprintArticleVersion 1This version is not peer-reviewed
Growth, Photosynthesis and Yield Responses of Common Wheat to Foliar Application of Methylobacterium symbioticum under Decreasing Chemical Nitrogen Fertilization
Version 1
: Received: 12 August 2024 / Approved: 13 August 2024 / Online: 13 August 2024 (11:30:58 CEST)
How to cite:
Valente, F.; Panozzo, A.; Bozzolin, F.; Barion, G.; Bolla, P. K.; Bertin, V.; Potestio, S.; Visioli, G.; Wang, Y.; Vamerali, T. Growth, Photosynthesis and Yield Responses of Common Wheat to Foliar Application of Methylobacterium symbioticum under Decreasing Chemical Nitrogen Fertilization. Preprints2024, 2024080878. https://doi.org/10.20944/preprints202408.0878.v1
Valente, F.; Panozzo, A.; Bozzolin, F.; Barion, G.; Bolla, P. K.; Bertin, V.; Potestio, S.; Visioli, G.; Wang, Y.; Vamerali, T. Growth, Photosynthesis and Yield Responses of Common Wheat to Foliar Application of Methylobacterium symbioticum under Decreasing Chemical Nitrogen Fertilization. Preprints 2024, 2024080878. https://doi.org/10.20944/preprints202408.0878.v1
Valente, F.; Panozzo, A.; Bozzolin, F.; Barion, G.; Bolla, P. K.; Bertin, V.; Potestio, S.; Visioli, G.; Wang, Y.; Vamerali, T. Growth, Photosynthesis and Yield Responses of Common Wheat to Foliar Application of Methylobacterium symbioticum under Decreasing Chemical Nitrogen Fertilization. Preprints2024, 2024080878. https://doi.org/10.20944/preprints202408.0878.v1
APA Style
Valente, F., Panozzo, A., Bozzolin, F., Barion, G., Bolla, P. K., Bertin, V., Potestio, S., Visioli, G., Wang, Y., & Vamerali, T. (2024). Growth, Photosynthesis and Yield Responses of Common Wheat to Foliar Application of Methylobacterium symbioticum under Decreasing Chemical Nitrogen Fertilization. Preprints. https://doi.org/10.20944/preprints202408.0878.v1
Chicago/Turabian Style
Valente, F., Yu Wang and Teofilo Vamerali. 2024 "Growth, Photosynthesis and Yield Responses of Common Wheat to Foliar Application of Methylobacterium symbioticum under Decreasing Chemical Nitrogen Fertilization" Preprints. https://doi.org/10.20944/preprints202408.0878.v1
Abstract
Current agriculture intensifies crop cultivation to meet food demand, leading to unsustainable use of chemical fertilizers. This study investigates a few physiological and agronomic responses of common wheat following the inoculation with plant growth-promoting bacteria to reduce nitrogen inputs. A field trial was conducted in 2022-23, in Legnago (Verona, Italy) on Triticum aestivum var. LG-Auriga comparing full (180 kg ha-1) and reduced (130 kg ha-1) N doses, both with and without foliar application at end tillering of the N-fixing bacterium Methylobacterium symbioticum. Biofertilization did not improve shoot growth, while it seldom increased root length density in the arable layer. It delayed leaf senescence, prolonged photosynthetic activity, amplified stomatal conductance and PSII efficiency under reduced N dose. Appreciable ACC-deaminase activity of such bacterium disclosed augmented nitrogen retrieval and reduced ethylene production, explaining ameliorated stay-green. Yield and testing weight were unaffected by biofertilization, while both glutenin-to-gliadin and HMW-to-LMW ratios increased together with dough tenacity. It is concluded that Methylobacterium symbioticum can amplify nitrogen metabolism at reduced nitrogen dose, offering a viable approach to reduce chemical fertilization under suboptimal growing conditions for achieving a more sustainable agriculture. Further research over multiple growing seasons and soil types is necessary to corroborate these preliminary observations.
Environmental and Earth Sciences, Sustainable Science and Technology
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
