Efeito da intensidade de poda na produção e qualidade de frutos de pessegueiro

Abstract

). A interação 'Riograndense' e poda curta proporcionou maior percentual de frutos colhidos (91,02 %), maior massa média de frutos (141,62 g) e maior volume de massa fresca na poda de frutificação (3.188,14 g.planta -1 ), já a maior produtividade foi obtida em plantas de 'Riograndense', que receberam poda sem desponte (10,82 t.ha -1). Os diferentes tipos de poda influenciam no desenvolvimento das plantas, afetando o número de flores e frutos. Nas condições em que o experimento foi conduzido, podemos concluir que características como frutificação efetiva, firmeza de polpa e sólidos solúveis não são alteradas pelos diferentes tipos de poda, já as variáveis relacionadas à produtividade estão intimamente relacionadas com as variações de intensidade de poda de ramos. Termos para indexação: Prunus persica, frutificação, poda. THE EFFECT OF PRUNING INTENSITY IN THE PRODUCTION AND QUALITY OF PEACH FRUITSABSTRACT -The present study aimed to evaluate the vegetative and productive behavior of peach trees when subjected to variations in the intensity of lopping the branches during pruning. We used plants of two cultivars 'Riograndense' and 'Leonense', and three pruning intensities, heavy pruning (removal of 2/3 of the length of the branches), pruning (removing 1/3 of the length of the branches) without lopping and pruning (maintenance of the branches intact). The 'Riograndense' plants showed larger fruits in diameter, since 'Leonense' had a higher percentage of fruit set (40,91 %), greater firmness (7,70 kgf), soluble solids (11,12 brix) and more fruits per plant (70,11). Pruning called heavy pruning provided greater fruit diameter and greater volume of fresh mass retreated in the summer pruning (3,193.75 g.plant -1 ). The interaction 'Riograndense' x heavy pruning provide a greater percentage of fruits (91.02 %), higher fruit mass (141.62) and higher volume of fresh mass in pruning (3,188.14 g.plant -1 ), now highest yield was obtained in 'Riograndense' plants received without lopping pruning (10.82 t.ha -1). The different types of pruning influence the development affecting the number of flowers and fruits of the plants. In the conditions of the experiment was conducted we conclude that characteristics such as effective fruit firmness and soluble solids, are not altered by different types of pruning, since the variables related to production are closely linked to variations of pruning branches intensity.

Cycle pruning programmed on the grain yield of arabica coffee

“…However, intense use of these pruning techniques may have drastic effects on plants, such as decreased yield in the year following the practice, leading to absent yield ("zero harvest"), and reduction in the root system, which in some cases may result in plant death due to the great removal of the vegetative part (Kumar et al, 2010;Gonçalves et al, 2014;Silva et al, 2016). Besides those problems, the use of traditional pruning in Arabica coffee culminates in disarray in the plant architecture, hindering cultivation practices such as harvesting as well as causing the "naked neck" effect.…”

The effect of rootstocks on the vigor, yield, and fruit quality of Maciel peach trees

“…Silva et al (2014) showed that high temperatures during the day and mild temperatures at night, especially during the maturation period, provide increased sugar content in peaches, which may favor mainly late cultivars harvested in December and January. According to Picolotto et al (2009) and Gonçalves et al (2014), the SS content of peaches are more influenced by some factors, such as position of the fruit in the plant, light interception into the canopy, branch and pruning type, than by the rootstock, and therefore may vary from one production cycle to another, being dependent on by 'Maciel'/'Industry', and 'Maciel'/'Capdeboscq', which did not differ between them (Figure 1). Finally, the results showed that the rootstocks evaluated induce distinct characteristics in the Maciel cultivar, such as differences in vigor, yield, and fruit quality (fruit size and sugar content in the pulp).…”

Solar radiation absorption according to the tree crown conduction and the effects on peach cultivars production

“…However, the peach produced in the southern region of Brazil, although of great flavor, often do not achieve the size, appearance and firmness desired by international standards (Wagner Junior et al, 2011;Gonçalves et al, 2014). Thus, orchard Com.…”

“…Sci., Bom Jesus, v.8, n.2, p.367-374, Abr./Jun. 2017 and plant management practices are important to reach these quality attributes (Gonçalves et al, 2014).…”

“…In order to promote the best utilization of the productive area and the anticipation of the return of the invested capital, the fruit growers tend to implant more compact orchards and adopt different management systems for the crop. Studies regarding pruning (Trevisan et al, 2006, Rodrigues et al, 2009Galarça et al, 2013;Gonçalves et al, 2014) and orchards spacing (Giacobbo et al, 2003;Mathias et al, 2008;Mayer & Pereira, 2011) were developed, but all with limitations on the evaluation of the interception of solar radiation, since the evaluated characteristics were fruit production, color and quality.…”