home    about    browse    search    latest    help 
Login | Create Account

Growth of champa fruit under agroecological conditions of Miraflores, Boyacá, Colombia.

Balaguera-López, Helber Enrique; Arévalo, Aníbal Herrera and Cortés-Moreno, Daniel (2012) Growth of champa fruit under agroecological conditions of Miraflores, Boyacá, Colombia. [Crescimento de frutos de gabiroba em condições agroecológicas de Miraflores, Boyacá, Colômbia.] Pesquisa Agropecuária Brasileira, 47 (12), pp. 1722-1730.

[img]
Preview
PDF - Published Version - English
1MB

Online at: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2012001200007&lng=pt&nrm=iso&tlng=en

Summary

The objective of this work was to analyze the growth of champa fruit (Campomanesia lineatifolia) as a function of growing-degree days (GDD) in the municipality of Miraflores, in Boyacá, Colombia. Thirty trees were selected at random, and 100 flowers in full bloom were marked in each tree. From the 26th day after flowering until harvest, 10 samples were taken every 15 days to determine the fruit parameters and growth rate. Temperature was recorded to calculate the GDD. From flowering until harvest, 1,489.1 GDD were accumulated over 145 days. Dry and fresh matter mass of pulp, seed, and total fruit were fitted to a logistic growth model, and three growth stages (S1, S2 and S3) were defined. In the S1, growth was slow, and the relative growth remained nearly stable, whereas the absolute growth rate (AGR) increased slowly. In the S2, maximum growth was observed. In the S3, which corresponds to maturation, dry mass increased gradually, and the AGR decreased, while the fresh pulp and total mass did not cease to increase. The polar and equatorial diameters increased linearly, while the volume followed an exponential model. Champa fruit show a simple sigmoid growth curve.

Summary translation

O objetivo deste trabalho foi analisar o crescimento de frutos de gabiroba (Campomanesia lineatifolia) como função de graus-dia de crescimento (GDC) no Município de Miraflores, Boyacá, Colômbia. Trinta árvores foram selecionadas aleatoriamente, e 100 flores totalmente maduras marcadas em cada árvore. A partir do 26o dia após o florescimento até a colheita, 10 amostras foram colhidas a cada 15 dias, para determinar os parâmetros de crescimento dos frutos e a taxa de crescimento. A temperatura foi registrada para calcular o GDC. Do florescimento até a coleta, 1.489,1 GDC foram acumulados em 145 dias. As massas de matéria seca e fresca de polpa, sementes e total de frutos foram ajustadas a um modelo logístico de crescimento, e três estágios de crescimento (S1, S2 e S3) foram definidos. No S1, o crescimento foi lento, e o crescimento relativo permaneceu quase estável, enquanto o crescimento absoluto aumentou lentamente. No S2, foi observado o máximo crescimento. No S3, que corresponde à maturação, a massa de matéria seca aumentou gradualmente, ao passo que o crescimento absoluto diminuiu, e as massas fresca e total da polpa continuaram a aumentar. Os diâmetros polar e equatorial aumentaram linearmente, enquanto o volume seguiu um modelo exponencial. Os frutos de gabiroba apresentam uma curva sigmoidal simples de crescimento.

EPrint Type:Journal paper
Keywords:Taxa de crescimento, frutas tropicais, Campomanesia lineatifolia. Growth rate, tropical fruits, Campomanesia lineatifolia.
Agrovoc keywords:
LanguageValueURI
Englishagroecologyhttp://aims.fao.org/aos/agrovoc/c_92381
EnglishMyrtaceaehttp://aims.fao.org/aos/agrovoc/c_5052
EnglishGrowth ratehttp://aims.fao.org/aos/agrovoc/c_16130
EnglishTropical fruitshttp://aims.fao.org/aos/agrovoc/c_7974
Subjects: Crop husbandry > Production systems
Farming Systems > Buildings and machinery
Crop husbandry > Production systems > Fruit and berries
Research affiliation: Brazil > Other organizations
ISSN:0100-204X
DOI:10.1590/S0100-204X2012001200007
Related Links:http://www.scielo.br/?lng=pt
Deposited By: Baldasso, Heloísa Souza
ID Code:28502
Deposited On:09 Apr 2015 15:18
Last Modified:09 Apr 2015 15:18
Document Language:English
Status:Published
Refereed:Peer-reviewed and accepted

Repository Staff Only: item control page