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- Title
Two decades of national registry of soybean cultivars: updates and perspectives.
- Authors
Dorneles, Jardel Bazzan; Ricardo Carvalho, Ivan; da Silva Martins, Tamires; Moura, Natã Balssan; da Silva, José Antonio Gonzalez; Lautenchleger, Francine
- Abstract
The aim was to reveal the trend and the pattern of registration of soybean cultivars in Brazil in recent decades and to contrast with future perspectives. This is a study carried out in 2019 at the Regional University of Northwestern Rio Grande do Sul - UNIJUÍ, where data were collected from 1998 to 2018. The online databases of the Ministry of Agriculture, Livestock and Food Supply (MAPA) were used, Food and Agriculture Organization (FAOSTAT) and United States Department of Agriculture (USDA), for data collection, the criterion used was that the cultivar was properly registered on the National Register of Cultivars (NRC) platform. In general, the aspects according to each year of launch of the cultivars are in favor of the best performance of the crop. They are correlated in the following modifications: plant architecture, resistance, seed size, indeterminate growth habit, flower colors, pods, hilums, presence of anthocyanin, peroxidase, seed brightness, densities and registered genotypes. With neural networks it was possible to classify 1818 soybean genotypes, divided into 18 profiles, also based on the search for 68 characters presenting 19 trends. With the work it was concluded that the year of launch of the cultivar is associated with: the intrinsic characteristics of the maintainer of the cultivar, the biotechnological event, the characteristics of the growth habit and the colorations of the flower, of the seed pod and of the hypocotyl. As the forecast is that in the coming decades new cultivars will be launched in Brazil, a correct positioning of specific genotypes for different environments is needed.
- Subjects
BRAZIL; CULTIVARS; FOOD &; Agriculture Organization of the United Nations; UNITED States. Dept. of Agriculture; FOOD supply; SEED size; AGRICULTURAL policy; ONLINE databases
- Publication
Communications in Plant Sciences, 2020, Vol 10, p1
- ISSN
2237-4027
- Publication type
Article
- DOI
10.26814/cps2020012