Considerações sobre planejamento experimental e adequabilidade do uso de testes estatísticos em Ciências Agrárias

Abstract

Todo o conteúdo expresso neste artigo é de inteira responsabilidade dos seus autores.

Caracterização morfológica, divergência genética e seleção de genitores de batata doce para cruzamentos

“…Variability was observed in all quantitative descriptors of the shoot evaluated (Table 1), especially the internode length, which ranged from 1.3 (F-15 family) to 12.3 cm (Pão variety), with a coefficient of variation of 58.3%, considered of high magnitude (Ferreira, 2018). The high coefficient of variation may be the indicator of the existence of genetic variability in segregating genotypes, according to Cavalcante & Costa (2021). Among the qualitative descriptors, petiole pigmentation, with six categories, showed the greatest variation.…”

“…Variation was observed in the type, number and shape of the leaf lobes, which, because it is an easily identifiable characteristic, can be used to differentiate hybrids from parents. Also, in high-density plantations, combined with the length of the petiole and leaf shape, the higher number of lobules can improve ventilation and allow more light to reach the base of the plant, increasing light absorption (Ni et al, 2014) For the quantitative root traits, the coefficient of variation ranged from 22.6% for root length to 69.1% for weight (Table 2), indicating wide variation in the dataset that may be related to the genetic variability of the collection (Cavalcante & Costa, 2021). Root weight ranged from 42 g (family F-05) to 2,082 g (clone CL 28), in which 18 genotypes weighed more than 500 g/plant.…”

Caracterização e divergência genética de variedades crioulas de feijão

“…O coeficiente de variação é um parâmetro que indica variabilidade genética quando se avalia genótipos divergentes (Cavalcante & Costa, 2021), a exemplo de acessos e variedades crioulas. Portanto, considerando que as espécies domesticadas de feijão (Phaseolus spp.)…”