Physiological changes in old and modern soybean cultivars

• Grant number: 17/14889-0
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: September 01, 2017
• End date: June 30, 2018
• Field of knowledge: Agronomical Sciences - Agronomy - Crop Science
• Principal Investigator: José Laércio Favarin
• Grantee: Vanessa Mendes de Queiroz
• Host Institution: Escola Superior de Agricultura Luiz de Queiroz (ESALQ). Universidade de São Paulo (USP). Piracicaba , SP, Brazil

Abstract

Soybean (Glycine max (L) Merrill) is the most sown crop in Brazil today, and its productivity increased by about 72% between 1973 and 2015. This increase is due to new agricultural technologies and management, and to the genetic gain provided by plant breeding. Several studies in soybean-producing countries have evaluated the physiological changes that occurred in their cultivars; however, it is not known how the traditional improvement altered the physiological aspects of the Brazilian soybean cultivars. The objective of this work is to evaluate how the physiological aspects were altered in different soybean cultivars over time. In this study, 25 Brazilian cultivars throughout 1960 to 2015 will be used. Will be evaluated the stomatal conductance, liquid photosynthesis, leaf temperature, leaf chlorophyll and nitrogen content. As results, it is expected to have information that can support guidelines for the selection of new and even more productive cultivars. (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)

UMBURANAS, RENAN CALDAS; DONEGA, VICTORIA CORDESCHI; DE QUEIROZ, VANESSA MENDES; FONTANA, DANIELE CRISTINA; BAMPI, DAIANA; DOURADO-NETO, DURVAL; REICHARDT, KLAUS. Root attributes and seedling biomass of old and modern soybean cultivars under water deficit. EMIRATES JOURNAL OF FOOD AND AGRICULTURE, v. 31, n. 9, p. 688-696, SEP 2019. (10/11744-2, 17/14889-0, 17/24059-5, 16/06310-0)