Evaluation of soybean varieties physiological and agronomic traits under different iron concentrations and under ideal hydric conditions and waterlogging

• Grant number: 18/17380-4
• Support Opportunities: Scholarships in Brazil - Master
• Start date: July 01, 2019
• End date: December 31, 2019
• Field of knowledge: Agronomical Sciences - Agronomy - Crop Science
• Principal Investigator: Ana Carolina Firmino
• Grantee: Allan de Marcos Lapaz
• Host Institution: Faculdade de Ciências Agrárias e Tecnológicas. Universidade Estadual Paulista (UNESP). Campus de Dracena. Dracena , SP, Brazil

Abstract

Soils with lower or higher iron concentrations show lots of problems for crop cultivation. Higher iron concentrations associated with waterlogging makes this mineral phytotoxic to the plant. Another harmful factor is the filling of the soil porous spaces by water, restricting the supply of O2 to the root and its nodules. Given that, this work aims to evaluate the soybean varieties agronomic and physiological traits in order to investigate the behavior of the crop under increasing soil iron concentrations and under ideal water conditions and waterlogging. The experiment will be carried out in a greenhouse, in the Experimental Area of the Faculdade de Ciências Agrárias e Tecnológicas - UNESP, Campus of Dracena, SP. It will considered a completely randomized design with three replicates. Treatments will be organized in factorial scheme 3x3x6; three (03) soil iron concentration levels (0, 50, 500 mg/kg); three (03) waterlogging levels (0, 50 and 100%); and six (06) soybean varieties (Potência, Agroeste 3730, Agroeste AS 3797, Agroeste AS 38200, Pionner 95R51 and Dow AgroSciences 5G8015IPRO). The evaluations will be carried out during the phenological stages V2, R1, R3 and R5, most susceptible to the waterlogging condition. Plants will be kept under waterlogging conditions for a period of 8 days. The following parameters will be evaluated: nutritional status; photosynthetic pigments; ureides content, nitrate and ammonia; glutamine synthetase and allantoinase enzyme activity; sugar total content, sucrose and starch concentration; hydrogen peroxide content and MDA. Also, will be evaluated agronomic traits: plant height, first pod insertion height, number of pods per plant, number of seeds per plant, weight of 100 seed, number of stems, seed yield, shoot and root dry matter and number of nodules per plant.

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)

LAPAZ, ALLAN DE MARCOS; PEREIRA YOSHIDA, CAMILA HATSU; PEREIRA BOGAS, CARLOS LEONARDO; DE CAMARGOS, LILIANE SANTOS; MONTEIRO DE FIGUEIREDO, PAULO ALEXANDRE; AGUILAR, JAILSON VIEIRA; LIMA, RONALDO CINTRA; TOMAZ, RAFAEL SIMOES. Soil waterlogging associated with iron excess potentiates physiological damage to soybean leaves. NATIVA, v. 10, n. 3, p. 8-pg., 2022-05-01. (20/12421-4, 18/01498-6, 18/17380-4)

LAPAZ, ALLAN DE MARCOS; DE CAMARGOS, LILIANE SANTOS; PEREIRA YOSHIDA, CAMILA HATSU; FIRMINO, ANA CAROLINA; MONTEIRO DE FIGUEIREDO, PAULO ALEXANDRE; AGUILAR, JAILSON VIEIRA; NICOLAI, ARTUR BERNARDELI; DE PAIVA, WESLLER DA SILVA; CRUZ, VICTOR HUGO; TOMAZ, RAFAEL SIMOES. Response of soybean to soil waterlogging associated with iron excess in the reproductive stage. PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS, v. 26, n. 8, JUL 2020. (18/17380-4)

Academic Publications

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

LAPAZ, Allan de Marcos. Physio-biochemical behaviour of soybean in response to soil waterlogging associated with excess iron. 2019. Master's Dissertation - Universidade Estadual Paulista (Unesp). Faculdade de Engenharia. Ilha Solteira Ilha Solteira.