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- Title
Linear relationships in sunflower genotypes in the state of Rio Grande do Sul, Brazil.
- Authors
Follmann, Diego Nicolau; Cargnelutti Filho, Alberto; Crestani Pereira, Anderson; Vieira Loro, Murilo; dos Santos, Emilso Damm; Bergeijer da Rosa, Guilherme
- Abstract
The state of Rio Grande do Sul (RS) is the third largest sunflower producer in Brazil. This study verified the existence of linear relationships between grain yield, oil content, and oil yield in sunflower (Helianthus annuus L.) genotypes evaluated in RS. The data on grain yield (GY), oil content (OC), and oil yield (OY) were obtained from 73 sunflower cultivar trials in 21 municipalities in RS from 1999 to 2018. Scatter diagrams were createdto investigate the relationships between the variables GY, OC, and OY. Then, Pearson's linear correlation coefficient (r) was calculated between the variables, and the Student's t-test was performed at a 5% significance level. There is a positive and significant linear relationship between PG and OY. However, no linear relationship was found between grain yield and oil content in sunflower genotypes. Additionally, a positive linear association of high magnitude (r = 0.9672) was observed between grain yield and oil yield, while a low magnitude (r = 0.2245) was found between oil content and oil yield.
- Subjects
RIO Grande do Sul (Brazil : State); BRAZIL; PEARSON correlation (Statistics); SUNFLOWERS; COMMON sunflower; SUNFLOWER seed oil; GRAIN yields; GENOTYPES; SCATTER diagrams
- Publication
Ciência Rural, 2024, Vol 54, Issue 9, p1
- ISSN
0103-8478
- Publication type
Article
- DOI
10.1590/0103-8478cr20230201