| Journal: | Acta scientiarum. Agronomy |
| Database: | PERIÓDICA |
| System number: | 000460128 |
| ISSN: | 1679-9275 |
| Authors: | Vieira, Daniel Amorim1 Mesquita, Alessandro Carlos1 Marinho, Lígia Borges1 Souza, Vanuza de1 Aidar, Saulo de Tarso2 Carvalho, Marília Mickaele Pinheiro1 |
| Institutions: | 1Universidade do Estado da Bahia, Departamento de Tecnologia e Ciencias Sociais, Juazeiro, Bahia. Brasil 2Empresa Brasileira de Pesquisa Agropecuaria, Semiarido, Petrolina, Pernambuco. Brasil |
| Year: | 2019 |
| Volumen: | 41 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Experimental, analítico |
| English abstract | The current scenario of increased water scarcity is due to climate change and directly affects food production. It is thus necessary to develop strategies to mitigate the impacts of low water availability. Therefore, the goal of the present study is to evaluate the physiological behaviour of melon cultivars under water stress. The experiment was conducted in a protected environment in the experimental Submedium region of the São Francisco River Valley in the period ranging from October to December. In this study, we used the melon cultivars 'Amarelo' and 'Piel de Sapo'. The experiment was conducted in a randomized block design with three replicates that were subdivided into plots, where the plots were comprised of four irrigation rates (50, 75, 100, and 125% of crop evapotranspiration - CET), subplots were comprised of the two melon cultivars, and sub-subplots were comprised of samplings for physiological analyses (15, 30, and 45 days after transplanting). The parameters evaluated were stomatal conductance, transpiration, net photosynthesis, relationship CI/CA, and accumulated dry matter. Water stress reduced the stomatal conductance, transpiration, net photosynthesis, CI/CA, and accumulated dry matter. 'Piel de Sapo' showed a higher photosynthetic adjustment than 'Amarelo' melon due to the gas exchange behaviour of the former, and it was, therefore, more tolerant to water stress |
| Disciplines: | Agrociencias, Biología |
| Keyword: | Plantas para uso industrial, Frutas, Fisiología vegetal, Melón, Fotosíntesis, Estrés hídrico, Intercambio de gases, Brasil |
| Keyword: | Plants for industrial use, Plant physiology, Melon, Photosynthesis, Water stress, Gas exchanges, Tolerance, Dry matter, Cucumis melo L |
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