Influence of cropping systems in the insect population and morphophysiological traits of soybean cultivars of different growth habits

• Grant number: 13/03851-1
• Support Opportunities: Scholarships in Brazil - Master
• Start date: May 01, 2013
• End date: February 28, 2014
• Field of knowledge: Agronomical Sciences - Agronomy - Plant Health
• Principal Investigator: Regiane Cristina de Oliveira
• Grantee: Marina Mouzinho Carvalho
• Host Institution: Faculdade de Ciências Agronômicas (FCA). Universidade Estadual Paulista (UNESP). Campus de Botucatu. Botucatu , SP, Brazil

Abstract

The growth, development and yield of soybean result from the interaction between the genetic potential of the cultivar with the environment. However, the practices conduction culture may give influence on production. Over the years, it has been attempted to maximize production of soybean in Brazil, by acreage increased and / or the yield per area. In this context, there is always the search for new technologies and different managements, as the advance in exploring the genetic capacity of the plants. Thus, this study aims to investigate the influence of the conduction culture in new planting arrangements in the pest population and the morphological and physiological characteristics in soybean. The experiment follow the randomized block experiment with a 4x2 factorial with eight treatments with four tillage systems (cross planting, reduced spacing of 20 cm, double row planting (20 cm/50 cm) and normal spacing of 40 cm) and two soybean cultivars, a with growth habit determined and another indeterminate, with four replications. The plots are scaled with 12 m long and 12 m in overall width, with a spacing of 10 meters apart. Will be evaluated weekly on the vegetative and reproductive, using the method of cloth beaten to quantify the population of insect pests. The morphophysiologic parameters (gas exchange, functional growth, photosynthesis) will be evaluated at different growth stages (V5, R1, R3, R5 and R7) and the final will be assessed productivity. Data will be submitted to analysis of variance. The averages in physiological analyzes will be compared by Tukey test at 5% probability.

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)

CARVALHO, MARINA MOUZINHO; CARVALHO, LEIDIANE COELHO; OLIVEIRA DE FREITAS BUENO, REGIANE CRISTINA. Quantitative impacts of different planting arrangements on the populations of natural enemies in soybean. Acta Scientiarum. Agronomy, v. 41, 2019. (13/03851-1)