Análise de trilha e correlação canônica componentes do desempenho de girassol
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The Journal of Engineering and Exact Sciences – JCEC
Abstract
O girassol destaca-se pela sua adaptação a diferentes condições edafoclimáticas; no entanto, algumas regiões ainda não possuem seus próprios genótipos, logo, faz-se necessário o estudo das características que possibilitem obter rendimento para diferentes localidades. Objetivamos avaliar os componentes do desempenho agronômico de genótipos de girassol por meio da análise de trilha e correlação canônica. Dez genótipos de girassol foram avaliados quanto ao estande final, altura de plantas, diâmetro da haste, número de folhas, circunferência do capítulo, peso de 1000 aquênios e rendimento (kg ha -1 ). Os dados foram submetidos às análises de variância, multicolinearidade, análise de trilha e correlação
canônica. A circunferência do capítulo é um componente não utilizável para obter ganhos sobre o rendimento de aquênios de girassol. O número de folhas, juntamente com o efeito indireto de altura de plantas e estande, são os principais componentes de rendimento de
aquênios.
The sunflower stands out for its adaptation to different environmental conditions; however, some regions do not yet have their own genotypes. Therefore, it is necessary to study the characteristics that make it possible to obtain yield for different localities. Our objective was to evaluate the components of the agronomic performance of sunflower genotypes through path analysis and canonical correlation. Ten sunflower genotypes were evaluated for the final stand, plant height, stem diameter, leaf number, chapter circumference, weight of 1000 achenes and yield (kg ha -1 ). Data were submitted to analysis of variance, multicollinearity, path analysis and canonical correlation. The chapter's circumference is non-usable component to gains on the yield of sunflower achenes. Leaf number along with the indirect effect of plant height and stand are the main components of achenes yield.
The sunflower stands out for its adaptation to different environmental conditions; however, some regions do not yet have their own genotypes. Therefore, it is necessary to study the characteristics that make it possible to obtain yield for different localities. Our objective was to evaluate the components of the agronomic performance of sunflower genotypes through path analysis and canonical correlation. Ten sunflower genotypes were evaluated for the final stand, plant height, stem diameter, leaf number, chapter circumference, weight of 1000 achenes and yield (kg ha -1 ). Data were submitted to analysis of variance, multicollinearity, path analysis and canonical correlation. The chapter's circumference is non-usable component to gains on the yield of sunflower achenes. Leaf number along with the indirect effect of plant height and stand are the main components of achenes yield.
