Carbon assimilation in rice (Oryza sativa) due soil water potential

• Grant number: 16/16533-6
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: December 01, 2016
• End date: August 31, 2017
• Field of knowledge: Agronomical Sciences - Agronomy - Agricultural Meteorology
• Principal Investigator: José Laércio Favarin
• Grantee: Caio Luiz dos Santos
• Host Institution: Escola Superior de Agricultura Luiz de Queiroz (ESALQ). Universidade de São Paulo (USP). Piracicaba , SP, Brazil

Abstract

The project will be performed in glasshouse at Luiz de Queiroz College of Agriculture with the purpose of evaluate the influence of reducing water potential on carbon assimilation on rice ( Orya sativa). Plantas of rice variety IRGA 424 will be grown in pots and the treatments 0; -30; -60; -90; -120; -150 kPa will be applied from 15 days to 70 after emergence (DAE). The plants will be cultivated in two different seasons (from September to November and January to march) in order to submit them to distinct potential evapotranspiration. The water potential will be reduced by adding polyethylene glycol (PEG 6000) to the nutrient solution. From the results it is expected defining the water level which becomes occur effect in rice yield. And so on allow further studies that aims decrease water demand in rice crop. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

DOS SANTOS, CAIO LUIZ; DE BORJA REIS, ANDRE FROES; MAZZAFERA, PAULO; FAVARIN, JOSE LAERCIO. Determination of the Water Potential Threshold at Which Rice Growth Is Impacted. PLANTS-BASEL, v. 7, n. 3, SEP 2018. (16/16533-6)