Biochemical and physiological tests on jatropha for prediction of nutritional disorders of macronutrients

• Grant number: 11/15208-0
• Support Opportunities: Scholarships in Brazil - Master
• Start date: June 01, 2012
• End date: February 28, 2014
• Field of knowledge: Agronomical Sciences - Agronomy - Soil Science
• Principal Investigator: José Lavres Junior
• Grantee: Elcio Ferreira dos Santos
• Host Institution: Centro de Energia Nuclear na Agricultura (CENA). Universidade de São Paulo (USP). Piracicaba , SP, Brazil

Abstract

Increasing demand for renewable fuels is important to stimulate the development of crops producing ethanol in Brazil, as Jatropha. However, knowledge of nutritional requirements of Jatropha is a priority, to ensure the yield of biomass and energy. The aim will be to evaluate the effects of deficiency and macronutrients uptake by Jatropha, as well as correlating its effects with the physiological and biochemical attributes in order to predict early plant nutritional status. Nutrient solutions containing all macronutrients (check) and those from which one of these elements is omitted will be the treatments used. Moreover, for the study of nutrient uptake the plants will be grown in complete solution (Experiment 1). The experimental design related to Experiment 2 is the randomized complete block with split plots arrangement, with four replications in which plots correspond to the treatments and the subplots to the assessment times. The weekly assays in Experiment 2 are: plant height, stem diameterand the indirect determination of chlorophyll content (SPAD values). Besides, biochemical assessments of nitrate reductase, acid phosphatase, and the diamine putrescina, photosynthetic rate and stomatal conductance in leaves used for leaf analysis will be made. It will be determined macronutrient accumulation in plant parts, the longdistance transport, total number of leaves, total leaf area and total dry matter production.

Scientific publications

(5)

(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)

SANTOS, ELCIO FERREIRA; MACEDO, FERNANDO GIOVANNETTI; ZANCHIM, BRUNO JOSE; PEREIRA LIMA, GIUSEPPINA PACE; LAVRES, JOSE. Prognosis of physiological disorders in physic nut to N, P, and K deficiency during initial growth. Plant Physiology and Biochemistry, v. 115, p. 249-258, JUN 2017. (11/15208-0)

DOS SANTOS, ELCIO FERREIRA; ZANCHIM, BRUNO JOSE; DE CAMPOS, ALINE GRELLA; GARRONE, RAPHAEL FLORENCIO; LAVRES JUNIOR, JOSE. Taxa fotossintética, teor de clorofila e desenvolvimento inicial do pinhão-manso cultivado com omissão de micronutrientes. Revista Brasileira de Ciência do Solo, v. 37, n. 5, p. 1334-1342, SEP-OCT 2013. (11/15208-0, 10/12411-7)

SANTOS, ELCIO FERREIRA; MACEDO, FERNANDO GIOVANNETTI; ZANCHIM, BRUNO JOSE; CAMACHO, MARCOS ANTONIO; LAVRES, JOSE. Taxa de absorção de macronutrientes e partição de biomassa durante o crescimento inicial do pinhão-manso. Rev. Ciênc. Agron., v. 48, n. 4, p. 565-575, OCT-DEC 2017. (11/15208-0)

SANTOS, ELCIO FERREIRA; MATEUS, NIKOLAS SOUZA; RABELO, FLAVIO HENRIQUE SILVEIRA; MACEDO, FERNANDO GIOVANNETTI; LAVRES, JOSE. Diagnosing early disorders in Jatropha curcas to calcium, magnesium and sulfur deficiency. JOURNAL OF PLANT NUTRITION, v. 43, n. 11, FEB 2020. (11/15208-0)

SANTOS, ELCIO FERREIRA; MACEDO, FERNANDO GIOVANNETTI; ZANCHIM, BRUNO JOSE; CAMACHO, MARCOS ANTONIO; LAVRES, JOSE. Macronutrients uptake rate and biomass partitioning during early growth of Jatropha plants. REVISTA CIENCIA AGRONOMICA, v. 48, n. 4, p. 11-pg., 2017-10-01. (11/15208-0)

Academic Publications

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

SANTOS, Elcio Ferreira dos. Physiological and biochemical assessments for prediction of nutritional macronutrient disorders in the initial development on physic nut. 2014. Master's Dissertation - Universidade de São Paulo (USP). Centro de Energia Nuclear na Agricultura (CENA/STB) Piracicaba.