19
views
0
recommends
+1 Recommend
1 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      Harvest seasons and pruning management in pepper: production and pungency of the fruits Translated title: Épocas de colheita e manejo de poda na pimenta: produção e pungência dos frutos

      research-article

      Read this article at

      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          ABSTRACT Changes in plant architecture, such as apical pruning and harvesting at the right time, are management practices to obtain not only greater fruit production, but mainly quality and pungent fruits, preferred by the consumer market. We evaluated the effect of management of pruning and harvest seasons on growth, production and pungency of fruits conducted in the field. Nine seasons of harvest were studied {90, 101, 116, 131, 146, 161, 176, 191, 206 and 221 days after transplanting (DAT)} and two management systems (pruning and no pruning). The treatments were arranged in a factorial design (9x2) with split plot in a randomized block design with three replications. The agronomic traits analyzed were: height, chlorophyll, leaf area, soluble solids, number of fruits and pepper yield. The content of capsaicin and dihydrocapsaicin was determined using fruits harvested in two seasons (146 and 161 DAT) and in management systems (pruning and no pruning), in a factorial scheme (2x2), in a randomized complete block design with five replications. Growth and production traits did not differ significantly for pruning and no pruning managements, with an average of 71.8 fruits/plant and productivity of 429.7 g/plant. The agronomic traits were adjusted to the quadratic model. The maximum yield (529.09 g/plant) and the maximum number of fruits per plant (95.34) were estimated at 164.83 and 163.21 DAT, respectively. The use of pruning resulted in fruits with a higher content of capsaicin (363.89 mg/kg) and dihydrocapsaicin (198.27 mg/kg) at 161 DAT. Pruning management results in more pungent and better quality fruits for industry, and the maximum production of BRS Mari pepper was estimated at 164.83 DAT, important information for pepper producers, in order to schedule the harvests.

          Translated abstract

          RESUMO Alterações na arquitetura da planta, como a poda apical e a colheita na época certa, são práticas de manejo que podem ser adotadas com a finalidade de obter não apenas maior produção de frutos, mas principalmente frutos de qualidade e pungência, preferidos pelo mercado consumidor. Objetivou-se avaliar manejo da poda e épocas de colheita sobre o crescimento, produção e pungência de frutos de pimenta, conduzida a campo. Foram estudadas nove épocas de colheita {90, 101, 116, 131, 146, 161, 176, 191, 206 e 221 dias após o transplantio (DAT)} e dois sistemas de manejo (poda e sem poda). Os tratamentos foram arranjados em esquema fatorial (9x2), com parcelas subdivididas, no delineamento blocos ao acaso, com três repetições. As variáveis analisadas das características agronômicas foram: altura, clorofila, área foliar, sólidos solúveis, número de frutos e produtividade de pimenta. O teor de capsaicina e dihidrocapsaicina foi determinado de frutos colhidos em duas épocas (146 e 161 DAT) e nos sistemas de manejo (com e sem poda), em esquema fatorial (2x2), no delineamento blocos ao acaso, com cinco repetições. Verificou-se que as variáveis de crescimento e produção não diferiram significativamente para o manejo com poda e sem poda, com valor médio de 71,8 frutos/planta e produtividade de 429,7 g/planta. As características agronômicas ajustaram-se ao modelo quadrático. A produção máxima de 529,09 g/planta e o número máximo de frutos por planta de 95,34 foram estimados aos 164,83 e 163,21 DAT, respectivamente. A utilização da poda resultou em frutos com maior teor de capsaicina (363,89 mg/kg) e dihidrocapsaicina (198,27 mg/kg) aos 161 DAT. Conclui-se que o manejo de poda resulta em frutos mais pungentes e de qualidade para indústria, e a época de produção máxima da pimenta BRS Mari estimada aos 164,83 DAT, informação de importância para o produtor de pimenta programar as épocas de colheita.

          Related collections

          Most cited references30

          • Record: found
          • Abstract: not found
          • Book: not found

          Pós-colheita de frutas e hortaliças: fisiologia e maneseio

            Bookmark
            • Record: found
            • Abstract: not found
            • Article: not found

            FAOSTAT

            (2014)
              Bookmark
              • Record: found
              • Abstract: found
              • Article: not found

              Sink strength as a determinant of dry matter partitioning in the whole plant.

              Dry matter partitioning is the end result of the flow of assimilates from source organs via a transport path to the sink organs. The dry matter partitioning among the sinks of a plant is primarily regulated by the sinks themselves. The effect of source strength on dry matter partitioning is often not a direct one, but indirect via the formation of sink organs. Although the translocation rate of assimilates may depend on the transport path, the transport path is only of minor importance for the regulation of dry matter partitioning at the whole plant level. To understand the regulation of dry matter partitioning by the sinks, a parameter like sink strength is needed that describes a sink's ability to influence assimilate import and is independent of the rest of the plant. The term sink strength can be defined as the competitive ability of an organ to attract assimilates. However, there is much debate and confusion about the term sink strength because this term is often not clearly defined. Sink strength has been proposed to be the product of sink size and sink activity. Although cell number is often considered as a suitable measure of sink size, it appears not always to be an important determinant of sink size. Moreover, sink strength may depend on sink age rather than sink size. A model for dry matter partitioning into generative plant parts, which is based on sink strengths of the organs, is described. The potential growth rate (potential capacity to accumulate assimilates) has been shown to be an important parameter that quantitatively reflects the sink strength of an organ. The potential growth rates of the plant's organs are not static but change dynamically. The potential growth rate of a fruit is a function of both its age and temperature. For several crops it has been shown that the dry matter partitioning into an organ can be quantitatively described as a function of its potential growth rate relative to that of the other plant organs.
                Bookmark

                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                hb
                Horticultura Brasileira
                Hortic. Bras.
                Associação Brasileira de Horticultura (Vitoria da Conquista, BA, Brazil )
                0102-0536
                1806-9991
                September 2017
                : 35
                : 3
                : 434-439
                Affiliations
                [1] Dois Vizinhos Paraná orgnameUniversidade Tecnológica Federal do Paraná Brazil dalvapaulus@ 123456utfpr.edu.br
                Article
                S0102-05362017000300434
                10.1590/s0102-053620170320
                0e8e0d41-4299-4687-8031-8562606e3b64

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                : 22 February 2017
                : 14 October 2016
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 32, Pages: 6
                Product

                SciELO Brazil


                arquitetura da planta.,Capsicum annuum,capsaicin,dihydrocapsaicin,plant architecture.,capsaicina,dihidrocapsaicina

                Comments

                Comment on this article