Interaction silicon and aluminum in upland rice and castor oil plant

• Grant number: 11/22182-8
• Support Opportunities: Regular Research Grants
• Start date: April 01, 2012
• End date: September 30, 2014
• Field of knowledge: Agronomical Sciences - Agronomy - Soil Science
• Principal Investigator: Dirceu Maximino Fernandes
• Grantee: Dirceu Maximino Fernandes
• Host Institution: Faculdade de Ciências Agronômicas (FCA). Universidade Estadual Paulista (UNESP). Campus de Botucatu. Botucatu , SP, Brazil
• Associated researchers: Lucas Barbosa de Freitas

Abstract

The aluminum toxicity is a major limiting productivity in acid soils and Si is an interesting way to minimize the Al3+ toxicity in plants, however, not yet know the mechanism involved in the interaction between Si and Al3+. The objectives underlying this work are: describe the sensitivity to Al3+ by rice cultivars currently used by upland farmers in Brazil; identification and quantification of organic acids of low molecular weight exudates of rice cultivars, measuring the effect of acid exudates in the complexation of Al3+; evaluate the interaction between Si and Al3+ by means of absorption kinetics of Si and Al3+ (Vmax, Km and Cmin) in plants of upland rice (culture accumulator Si) and castor bean (culture is not accumulating Si). Will be installed in three greenhouse experiments conducted in nutrient solution. All use a randomized block design with four replications. Experiment 1 - 2x10 arranged in factorial design, the treatments will be with and without Al3+ and 10 cultivars of upland rice. Experiment 2 - arranged in factorial design 2x4, treatments are two cultivars of upland rice (tolerant and not tolerant to Al3+) and combinations of Si and Al3+ (1-without Si and without Al3+; 2-with Si and without Al3+; 3- without Si and with Al3+, 4-with Si and with Al3+). Experiment 3 - arranged in factorial design 2x4, treatments are two cultivars of castor beans (tolerant and not tolerant to Al3+) and combinations of Si and Al3+ (1-without Si and without Al3+; 2-with Si and without Al3+; 3- without Si and with Al3+, 4-with Si and with Al3+). (AU)

Scientific publications

(7)

(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)

LUCAS BARBOSA DE FREITAS; DIRCEU MAXIMINO FERNANDES; SUELEN CRISTINA MENDONÇA MAIA; LAERTE GUSTAVO PIVETTA; MAURÍCIO DUTRA ZANOTTO. Tolerância de linhagens de mamona a alumínio. Pesqui. Agropecu. Trop., v. 48, n. 3, p. 299-305, 2018-12-00. (11/09283-0, 11/22182-8)

DE FREITAS, LUCAS B.; FERNANDES, DIRCEU M.; PIVETTA, LAERCIO A.; MAIA, SUELEN C. M.. Tolerance of upland rice cultivars to aluminum and acidic pH. Revista Brasileira de Engenharia Agrícola e Ambiental, v. 20, n. 10, p. 886-890, OCT 2016. (11/09283-0, 11/22182-8)

DE FREITAS, LUCAS BARBOSA; FERNANDES, DIRCEU MAXIMINO; MENDONCA MAIA, SUELEN CRISTINA; PIVETTA, LAERTE GUSTAVO; ZANOTTO, MAURICIO DUTRA. Aluminum tolerance in castor bean lines. PESQUISA AGROPECUARIA TROPICAL, v. 48, n. 3, p. 299-305, JUL-SEP 2018. (11/09283-0, 11/22182-8)

DE FREITAS, LUCAS BARBOSA; FERNANDES, DIRCEU MAXIMINO; MAIA, SUELEN CRISTINA MENDONCA; MAZZIERO, BEATRIZ GALLUCCI. Aluminum in mineral nutrition of upland rice plants. REVISTA BRASILEIRA DE CIENCIAS AGRARIAS-AGRARIA, v. 12, n. 1, p. 9-pg., 2017-01-01. (11/22182-8)

DE FREITAS, LUCAS B.; FERNANDES, DIRCEU M.; MAIA, SUELEN C. M.; MONIZ, ARIANNE; MAZZIERO, BEATRIZ G.; STEINER, FABIO. Fontes e doses de alumínio para utilização em experimentos com arroz em solução nutritiva. Revista Brasileira de Engenharia Agrícola e Ambiental, v. 23, n. 7, p. 511-517, JUL 2019. (11/22182-8, 11/09283-0)

DE FREITAS, LUCAS BARBOSA; FERNANDES, DIRCEU MAXIMINO; MENDONCA MAIA, SUELEN CRISTINA; FERNANDES, ADALTON MAZETTI. Effects of silicon on aluminum toxicity in upland rice plants. PLANT AND SOIL, v. 420, n. 1-2, p. 263-275, NOV 2017. (11/09283-0, 11/22182-8)

DE FREITAS, LUCAS B.; FERNANDES, DIRCEU M.; PIVETTA, LAERCIO A.; MAIA, SUELEN C. M.. Tolerance of upland rice cultivars to aluminum and acidic pH. REVISTA BRASILEIRA DE ENGENHARIA AGRICOLA E AMBIENTAL, v. 20, n. 10, p. 5-pg., 2016-10-01. (11/22182-8, 11/09283-0)