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- Title
Beneficial Effect of Exogenously Applied Calcium Pyruvate in Alleviating Water Deficit in Sugarcane as Assessed by Chlorophyll a Fluorescence Technique.
- Authors
Dias, Mirandy dos Santos; da Silva, Francisco de Assis; Fernandes, Pedro Dantas; Farias, Carlos Henrique de Azevedo; de Lima, Robson Felipe; da Silva, Maria de Fátima Caetano; Lima, Vitória Régia do Nascimento; de Lima, Andrezza Maia; de Lacerda, Cassiano Nogueira; Reis, Lígia Sampaio; Souza, Weslley Bruno Belo de; Silva, André Alisson Rodrigues da; Arruda, Thiago Filipe de Lima
- Abstract
The growing demand for food production has led to an increase in agricultural areas, including many with low and irregular rainfall, stressing the importance of studies aimed at mitigating the harmful effects of water stress. From this perspective, the objective of this study was to evaluate calcium pyruvate as an attenuator of water deficit on chlorophyll a fluorescence of five sugarcane genotypes. The experiment was conducted in a plant nursery where three management strategies (E1—full irrigation, E2—water deficit with the application of 30 mM calcium pyruvate, and E3—water deficit without the application of calcium pyruvate) and five sugarcane genotypes (RB863129, RB92579, RB962962, RB021754, and RB041443) were tested, distributed in randomized blocks, in a 3 × 5 factorial design with three replications. There is dissimilarity in the fluorescence parameters and photosynthetic pigments of the RB863129 genotype in relation to those of the RB041443, RB96262, RB021754, and RB92579 genotypes. Foliar application of calcium pyruvate alleviates the effects of water deficit on the fluorescence parameters of chlorophyll a and photosynthetic pigments in sugarcane, without interaction with the genotypes. However, subsequent validation tests will be necessary to test and validate the adoption of this technology under field conditions.
- Subjects
CHLOROPHYLL spectra; PYRUVATES; CALCIUM; PHOTOSYNTHETIC pigments; AGRICULTURE; DEFICIT irrigation; SUGARCANE
- Publication
Plants (2223-7747), 2024, Vol 13, Issue 3, p434
- ISSN
2223-7747
- Publication type
Article
- DOI
10.3390/plants13030434