Larissa Barbosa de Sousa

Development of Brazilian Soybean Cultivars Well Adapted to Cerrado and Rust-Tolerant

The major diseases limiting soybean growth and yield must be either controlled or mitigated. Among these, soybean rust is the most harmful; in addition, Phakopsora pachyrhizi populations less susceptible to both IDM and IQe fungicides were observed. Therefore, this invention aimed at developing a new soybean cultivar rust resistant and highly productive. Generations were advanced by single seed descent method on the Capim Branco farm, Federal University of Uberlândia. Value for Cultivation and Use were carried out during a 3-year period (2010/13) in several locations, and Distinctness, Uniformity and Stability experiments for a 2-year period (2011/13) on the Capim Branco farm. Hence, we developed the novel soybean cultivar designated UFUS 7415. UFUS 7415 has shown high contents of oil (20%) and protein (40%), and high yield potential (4.300 kg ha-1) even in environments with Asian rust.

Genetic divergence in soybeans based on phenotypic traits and microsatellite markers

Background The success of a breeding program depends on the existence of genetic variability [1]. Therefore, breeders have recommended to the formation of the population-based study, the interbreeding between superior cultivars and divergent, resulting in hybrid combinations of higher heterotic effect, so that in segregating generations it has a greater chance of obtaining transgressive genotypes [2]. Microsatellite markers or Simple Sequence Repeat (SSR) have been widely used to estimate genetic diversity in soybean due to their high degree of polymorphism, codominant inheritance, PCR-based detection, allelic diversity and the knowledge of the location of the marker in the genome the species [3]. In this report we present results of agronomic traits and microsatellite markers to evaluate the genetic diversity of 35 soybean genotypes to determine their potential as parents for breeding programs.

UFUS Riqueza: a new soybean cultivar for the state of Minas Gerais

O lancamento de cultivares tem garantido maior produtividade associada a maior tolerância as adversidades climaticas. UFUS Riqueza apresenta resistencia a deiscencia natural e as doencas: pustula bacteriana, crestamento bacteriano, mancha olho de ra, podridao parda da haste, cancro da haste e necrose da haste e um potencial produtivo alcancando 3,475 kg ha-1, 18 % de oleo e 39 % de proteina nos graos.

UFUS Guarani: new soybean cultivar for the state Minas Gerais

Day by day alternatives in genetic improvement are being been sought to ensure higher crop productivity. UFUS Guarani developed by the Federal University of Uberlandia is resistant to natural dehiscence and to the diseases: Sudden death syndrome (SDS), frogeye leaf spot, downy mildew, bacterial pustule, stem canker and stem necrosis; the potential yield is 3494 kg ha-1, the grain oil content is 18% and protein content 38%.