Desponte de Cladódios de Pitaia Vermelha de Polpa Branca

Abstract

Atualmente, a diversificação de frutíferas é uma forte tendência para ampliação de oportunidades para o fruticultor. O cultivo da pitaia se tornou importante, tanto para a economia quanto para a saúde, devido ao exotismo de sua aparência, por suas características organolépticas e suas propriedades nutracêuticas. No entanto, informações sobre o cultivo desta frutífera são escassas, necessitando de pesquisas para facilitar seu manejo. Neste sentido, o presente trabalho teve como objetivo avaliar a influência do manejo do desponte nas características vegetativas e reprodutivas em diferentes tamanhos de cladódios de pitaia vermelha de polpa branca. Para execução do experimento foi utilizado o delineamento experimental inteiramente casualizado, em esquema fatorial 5 x 3, correspondente a cinco comprimento de cladódios (menores que20 cm, entre 20-40 cm, 41-60 cm, 61-80 cme maiores que80 cm) e o segundo se refere a três tipos de desponte (sem desponte do cladódio, com desponte em setembro e desponte em outubro). Utilizaram-se 6 repetições e 1 cladódio por parcela. Foram analisadas as seguintes características: comprimento das brotações, números de brotações, número total de flores, quantidade de flores abortadas e frutos, porcentagem de pegamento das flores e massa fresca dos frutos. O desponte de cladódios não influenciou na maioria das características avaliadas. No entanto, para a melhor floração e produção de frutos, recomenda-se priorizar o desponte nos cladódios superiores a60 cmde comprimento.Palavras-chave: Cactácea. Frutificação. Hylocereus undatus. Poda.AbstractCurrently the diversification of fruit is a strong tendency to increase opportunities for the fruit grower. Pitaya cultivation has become important for both economy and health, due to the exotic nature of its appearance, its organoleptic characteristics and its nutraceutical properties. However, information on the cultivation of this fruit is scarce, requiring research to facilitate its management. Therefore, the present work had as objective to evaluate the influence of the topping management in the vegetative and reproductive characteristics in different sizes of cladodes of white fleshed red pitaya. In order to carry out the experiment, the completely randomized experimental design in factorial scheme 5 x 3 was utilized, corresponding to five cladode lengths (shorter than 20 cm, between 20-40 cm, 41-60 cm, 61-80 cm and longer than 80 cm) and the second is regarding the three kinds of topping (no topping of the cladode, with topping in September and topping in October). Six replications and one cladode per plot were used . The following characteristics were investigated: length of the shoots, number of shoots, total number of flowers, amount of aborted flowers and fruits, percentage of flower set and fresh mass of fruits. The topping of cladodes did not influence the evaluated characteristics. For the best flowering and fruit production, it is advisable to prioritize the cladodes over 60 cm long.Keywords: Cactaceae. Fructification. Hylocereus undatus. Pruning.

Effect of pruning on apical dominance, agronomic traits, and post-harvest quality of pitaya in the Amazon forest biome •

“…The results presented in Table 3 are contrary to those found by [12] in a study with white-pulp pitayas. Such divergence may suggest variations derived from different genetic materials, as well as other conditions such as physiological factors, as well as climatic and nutritional conditions [13].…”

Vegetative growth and flowering of dragon fruit species according to branch pruning management and application of superabsorbent polymer

“…These results may be related to the climatic factor, such as, for Marques et al (2011), temperature, relative humidity and precipitation, which are those that most interfere in the dragon fruit's phenology. Lopez (2010), while evaluating the effect of pruning on the cultivation of dragon fruit, observed that this practice did not influence the number of shoots, as for Ramos et al (2018), corroborating the results obtained in the work. The number of shoots was higher in the red pulp dragon fruit (Figure 5A).…”

“…Revista Agrogeoambiental, v.15, e20231797, 2023 development of the fruits affected their quality. According toRamos et al (2018), monitoring annual precipitation is extremely important, because in the absence of rainfall, irrigation is fundamental for productivity and fruit quality. In addition, excessive rainfall during flowering can cause flower buds to fall and influence fruit quality.…”

Initial Growth and Nutrient Accumulation in Pitaya Plants at Different Phenological Stages1

“…Potassium increases the pitaya cladode diameter (CAJAZEIRA et al, 2018) and is related to stomatal opening and closure processes, and carbohydrate translocations (MARSCHNER, 2012). According to Laredo (2016), the size and number of buds are important characteristics for pitaya plants; plants that present higher shoot vigor can better capture light and produce photoassimilates, improving the plant nutrition and accumulation of reserves.…”