Phenotypic correlation between leaf characters and physical and chemical aspects of cv. Vitória pineapple fruit

Abstract

By considering the few studies related to pineapple cv. Vitória, to know the relationships between the physical and chemical characteristics of the fruits, and they with the “D” leaf, is fundamental. The objective of this work was to evaluate the relationships between “D” leaf, with the physical and chemical characteristics of fruits of pineapple cv. Vitória, under the edaphoclimatic conditions in the North of the State of Espírito Santo. The experiment was carried out in a complete randomized block design in split-plot arrangement with four replications. The data obtained from 433 individually evaluated fruits were analyzed, as it follows: 84 at planting in July and induction at 8 months; 98 at planting in July and induction at 10 months; 84 at planting in July and induction at 12 months; 59 at planting in September and induction at 8 months; 50 at planting in September and induction at 10 months; 58 at planting in September and induction at 12 months. Pearson’s correlation was performed between the characteristics of “D” leaf (length and width) and the physical and chemical aspects of fruits (mass of the fruits with and without crown, fruit length and diameter, pulp volume, translucent area, soluble solids and titratable acidity) for the six treatments. Most of the relationships among the 11 characteristics evaluated were of low magnitude in the six treatments, but correlations of high magnitude and practical application of interest to plant scientists, breeders, farmers and consumers were found. The length and width of the “D” leaf should not be used as indicators of physical and chemical qualities of cv. Vitória. Fruits with higher mass, with or without crown or larger width or diameter present higher pulp content. Fruits with higher mass, with or without crown have lower content of soluble solids.

Emergence and initial growth of Celosia argentea L. cultivated under irrigation with brackish water

“…al Ornam. Hortic., v.30, e242661, 2024 Correlation is a widely used tool that allows quantitatively assessing the relevance of the characteristics of the measured variable in relation to another variable (Küster et al, 2018). All correlations presented in the present study were statistically significant.…”

Performance of 'Vitória' pineapple in response to different types of shoots and ages of floral induction

“…According to Küster et al (2018), values for length and width of the "D" leaf are strongly influenced by both genotype and environment, and they should not be used as quality indicators of pineapple fruit 'Vitória'. Pineapple leaf show a high plasticity, changing its morphological characteristics to optimize the use of environmental resources (Cheng et al, 2018).…”

Inibição do florescimento natural do abacaxizeiro com o uso de bloqueador da ação do etileno

“…Os valores de SS encontrados no trabalho foram inferiores aos observados porBarker et al (2018) que relatou maiores valores médios de 16°Brix para a cultivar 'Vitoria'. Porém superiores aos observados porKüster et al (2017) que encontrou valor médio de 14,2° Brix. O teor de sólidos solúveis observado nos frutos de abacaxis está dentro do parâmetro mínimo para comercialização de frutos de abacaxi, que são os teores de sólidos solúveis de 12°Brix(BRASIL, 2002).…”

“…O teor de sólidos solúveis observado nos frutos de abacaxis está dentro do parâmetro mínimo para comercialização de frutos de abacaxi, que são os teores de sólidos solúveis de 12°Brix(BRASIL, 2002). O valor de acidez foi superior ao encontrado porKüster et al (2017) que obteve valor médio de 0,8 e superior aos encontrados porCunha et al (2019).A relação SS/AT é um fator importante para a aceitação do consumidor, pois influencia diretamente no sabor da fruta, essa relação também é utilizada para avaliar a maturidade do fruto e o estádio de palatabilidade (; OGAWA et al, 2017). Cunha et al (2019) e Küster et al (2017) relataram valores médios de SS/AT 20,86 e 17,75 respectivamente.…”

“…Esses resultados obtidos por esses autores são superiores a encontrada neste trabalho. Quanto maior o valor da relação SS/AT menor é a acidez titulável e maior teor de sólidos solúveis.O peso de frutos foram superiores aos observados porKüster et al (2017), que obteve valores médios de peso dos frutos de 794,5 g. Em contrapartida, inferiores aos valores obtidos por Cunha et at. (2019), de 1.287 g cv.…”