Physico-Chemical Changes during Growth and Development of Three Plum Varieties

Abstract

In order to determine the physico-chemical changes during growth and development of three plum varieties, three species were analyzed (Stanley, Vânăt de Italia and Tuleu Gras) by harvesting the fruits at six different phases of development from the interior and the periphery of the crown. The changes that occurred for the studied samples were the following: the mass increased from 2.29 g to 37.16 g (Stanley 3.90 g / fruit →30.96 g / fruit, Vânăt de Italia variety 4.42 g / fruit →35.11 g / fruit, Tuleu Gras variety 2.81 g / fruit → 38.29 g / fruit), the diameter increased from 2.52 cm to 5.2 cm (Stanley 3.15 cm / fruit → 5.17 cm / fruit, Vânăt de Italia 3.00 cm / fruit → 5.20 cm / fruit ,Tuleu Gras 2.63 cm / fruit → 4.99 cm / fruit), the moisture ranged from 73.83-90.01% (Stanley 79.97%-88.52% , Vânăt de Italia 75.84%-87.80%, Tuleu Gras 79.85%-90.02%), the acidity decreased from 0.48%-0.07% (Stanley 1.27%→ 0.78%, Vânăt de Italia 1.28%→ 0.80%, Tuleu Gras 1.28%→0.75%), pH increased from 2.52 to 5.2 (Stanley 3.14 → 3.74, Vânăt de Italia 2.72 → 3.78, Tuleu Gras 2.97 → 3.94) and the total soluble solide (TSS) ranged from 6.4-23.95˚Brix (Stanley 6.4˚ → 21.3˚ Brix, Vânăt de Italia 7.05˚ → 23.35˚ Brix, Tuleu Gras 8.55˚ → 23.95˚Brix). The obtained results are helpful for the industry and consumers to choose the suitable plum fruits.

Characterization of a Florida plum introduction (USA) in Southern Brazil

“…Fruits of the cultivar Poli Rosa have an average diameter of 4.58 cm (MAnSOURI et al, 2010). In the cultivars, Stanley and Tuleu Gras the diameter of the fruits can vary between 3.6 to 5.4 and 3.0 to 4.8 cm, respectively (VLAIC et al, 2014). Demonstrating that the introduction of FLA 3-3 presents fruits with a diameter similar to cultivars recognized in the market.…”

“…Combining the need for work on the adaptation of new varieties to climatic conditions and the potential for expansion of the crop, there is a need for studies on new introductions of plum in Brazil, and their viability for rural producers. In this context, this work aimed to evaluate the Japanese plum genotype FLA3-3 of the breeding program of the University of Florida (USA) introduced in the plum breeding program of the Agronomic Institute of Paraná (IAPAR) in the climatic conditions of Ponta Grossa, Paraná, Brazil, during 2013, 2014and 2015.…”

“…Data on the number of days in the flowering and fruiting cycles of the Japanese plum genotype FLA 3-3 during the years, 2014and 2015 …”

“…Average data from physical fruit evaluations: fruit mass (MF), seed mass (MC), pulp mass (MP) and fruit diameter (DM) the Japanese plum genotype FLA 3-3 during the years, 2014and 2015 …”

Efeito Do Raleio Manual Em Frutos De Ameixeira Japonesa (Prunus Salicina Lind) Sobre Algumas Qualidades

“…A variação ocorrida nos SST dos acessos estudados ocorre principalmente pela diferença existente entre a origem dos cruzamentos que originaram frutos de ameixa das cultivares Stanley, Vânat de italia e Tuleu Gras possuem variação entre 6,40° Brix na variedade Stanley no momento inicial da colheita podendo alcançar valores de até 21.30 ° Brix nesta mesma cultivar ou valores de 23,35 e 23, 95° Brix, para as variedades Vanat de Italia e Tuleu Gras respectivamente (VLAIC et al, 2014). Na cultivar Irati os valores de SST obtidos de 9,53 ° Brix (PAVANELLO, 2012).…”