Phosphorus use efficiency by coffee cultivars and magnesium supply in phosphorus absorption

• Grant number: 10/11745-9
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: November 01, 2010
• End date: December 31, 2013
• Field of knowledge: Agronomical Sciences - Agronomy - Crop Science
• Principal Investigator: José Laércio Favarin
• Grantee: Ana Paula Neto
• Host Institution: Escola Superior de Agricultura Luiz de Queiroz (ESALQ). Universidade de São Paulo (USP). Piracicaba , SP, Brazil

Abstract

Agricultural systems seek more and more the efficiency use of available natural resources. Phosphorus (P) plays an important role as essential to agricultural production, although finite and irreplaceable. Low source of P is related to its low availability in tropical soils and the strong interaction with soil, which reduces the soluble portion. The varieties of coffee, having different growth and development, might have patterns of absorption and transportation of P in various tissues and thus change in the efficiency of utilization of available P in the soil. One factor that can increase the efficiency of phosphorus is the supply of magnesium (Mg), since this nutrient acts as the carrier of P for plants, for his role in the activation of membrane ATPase involved in absorption, production of ATP, photosynthesis and respiration. The objective of this work is to identify the most efficient and/or responsive cultivars to P, P fractions present in the cultivars and to verify the dose of magnesium that would increase the efficiency of phosphate fertilization. (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)

NETO, ANA P.; FAVARIN, JOSE L.; HAMMOND, JOHN P.; TEZOTTO, TIAGO; COUTO, HILTON T. Z.. Analysis of Phosphorus Use Efficiency Traits in Coffea Genotypes Reveals Coffea arabica and Coffea canephora Have Contrasting Phosphorus Uptake and Utilization Efficiencies. FRONTIERS IN PLANT SCIENCE, v. 7, MAR 31 2016. (10/11744-2, 10/11745-9)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

PAULA NETO, Ana. Phosphorus use efficiency by coffee cultivars and morphological adaptation of the root system under nutrient deficiency. 2014. Doctoral Thesis - Universidade de São Paulo (USP). Escola Superior de Agricultura Luiz de Queiroz (ESALA/BC) Piracicaba.