Agronomic performance of Blackberry cultivars in Lapa-PR

Abstract

Phenological studies with blackberry cultivars and the physical, chemical and sensory characterization of fruits are necessary to select the best cultivar adapted to local conditions and for the correct destination of fruits. The objective of this work was to evaluate the phenological stages of different blackberry cultivars, as well as to determine the quality of fruits, focusing on the recommendation of cultivars that are more adapted to local climate conditions. Moreover, the aim was to indicate the best destination of fruits produced, for either fresh consumption or as raw material for processing. The results indicated that the cultivars studied have adequate conditions for the expression of their productive potential, being Tupy cultivar the most productive. Fruits of Tupy, Guarani and Cherokee cultivars presented dual aptitude, which means they can be consumed fresh or or as raw material for processing, whereas those of Xavante cultivar are suitable only for processing.

Antioxidant Capacity and Polyphenolic Compounds of Blackberries Produced in Different Climates

“…This cultivar stands out because of its thornless stems, which is a recessive trait. However, its greater acidity of fruits is also a characteristic of this cultivar (Croge et al, 2016;Croge et al, 2019). This high acidity occurs due to a greater amount of tannins, which are also classified as location = 13.42% / CV cultivar = 14.23% Means in the same column followed by the same small or capital letter do not differ significantly (P # 0.05) according to Tukey's test.…”

“…However, industrial research is facing the important challenge of substituting synthetic antioxidant compounds for substances derived from plants. Therefore, there is an emphasis on products that fulfill such demands, and it is necessary to find potential sources of such compounds in nature and elucidate the processes related to their production in plants (Croge et al, 2019). Blackberry presents itself as one of the most promising species due to its high level of antioxidant compounds (Moyer et al, 2002).…”

Agronomic performance of blackberry cultivars in environmental protection area

“…From August, the water requirement increases, as the plants come out of dormancy and start to sprout. Also, from September, the blackberry is starting a new growth cycle, growing the stems responsible for the production of next year, hence, the lack of water can limit next year's production (Croge et al, 2019).…”

“…The yield performance of all cultivars was very low compared to the average yield of blackberry, which, according to Antunes & Raseira (2004) is about 10,000.00 kg/ha. There are also studies, such as Croge et al (2019), which demonstrated yield values of up to 26,800.00 kg/ha for the cultivar Tupy, in the Lapa -PR (Brazil) region, in a conventional and irrigated cultivation system.…”

“…Considering the great availability of cultivars, adaptability tests must be carried out to find the most productive cultivars in each region and to scale production in order to reduce risks of loss and increase the supply period of the fruit (Antunes & Raseira, 2004;Martins et al, 2019;Croge et al, 2019).…”