Qualidade de sementes de pimenta jalapenho em função da maturação e tempo de permanência nos frutos

Ricci, N.; Pacheco, Ana Cláudia; Conde, Alysson Sfordi; Custódio, Ceci Castilho

doi:10.1590/s1983-40632013000200008

Cited by 19 publications

(23 citation statements)

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“…During formation of P. dubium seeds, the difference in moisture content observed between the first two stages of maturity ( Figure 1A) may have been due to the immaturity of the seeds, since the variation observed, which reduced over time, is typical of orthodox seeds before physiological maturity (Nakada et al, 2011;Ricci et al, 2013). Tolerance to desiccation is acquired during development and allows reduction in moisture content to occur without damage to seeds (Bewley et al, 2013;Garnczarska et al, 2009).…”

Section: Resultsmentioning

confidence: 99%

“…Metabolic events that occur during maturation have the purpose of preparing the seed for its germination and, consequently, development of the seedling (Thomas, 1993;Kalemba and Pukacka, 2008). The increase in the concentration of proteins and other compounds during development and their maintenance after physiological maturity is important, especially when dealing with seeds that remain for a long period apart from the mother plant, as in serotinous species (Santini and Martorell, 2013). Maintenance of protein content is associated with low metabolic activity, as a result of reduction in moisture content during development and by the low activity of proteases, and by maintenance of the apparatus that impedes damage caused by reactive oxygen species and free radicals (Murthy et al, 2003).…”

Section: Resultsmentioning

confidence: 99%

“…To do so, soon after collection, the seeds were dried in a controlled environment (40% RH and 20 °C) for 72 hours. After this period, the germination test was carried out, using four replications of 25 seeds (Silva et al, 2012). Seeds that were not dried were used as a control.…”

Section: Methodsmentioning

confidence: 99%

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Aspects of Peltophorum dubium Sprengel (Taubert) seeds in an aerial seed bank

et al. 2017

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-Knowledge concerning natural regeneration strategies is important due to the effect of natural regeneration on the local ecosystem. The aim of this study was to examine the ecophysiological aspects of the Peltophorum dubium aerial seed bank. Fruits were harvested monthly, before and after seed maturation, from selected trees in the municipality of Lavras, MG, Brazil, for determination of moisture content, acquisition of tolerance to desiccation, seed viability, maintenance of dormancy, and mean germination time. Physiological maturity of the species was attained in June, when low moisture content, maximum dry matter, and high germination percentage were observed. We found that there was no change in dormancy, in germination percentage, or in the protein profile of seeds during the period they remained in the aerial seed bank. The P. dubium species creates an aerial seed bank of short serotiny, with fruits remaining attached to the tree for 9 months.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Aspects of Peltophorum dubium Sprengel (Taubert) seeds in an aerial seed bank

et al. 2017

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“…Several research studies have reported the harvest season effects on species of the Solanaceae family, including tomato VIDIGAL et al, 2006), hot peppers (VIDIGAL et al, 2009a;QUEIROZ et al, 2011;VIDIGAL et al, 2011;ABUD et al, 2013;RICCI et al, 2013;PEREIRA et al, 2014), and eggplant (MARTINS et al, 2012). Vidigal et al (2009a) assessed peppers of the Amarela Comprida (C. annuum L.) variety harvested on 40, 50, 60, and 70 days after anthesis (DAA) and stored for 3, 6, 9, 12, and 15 days and found the best germination and vigor resulted in seeds from peppers harvested on 60 DAA that were not subjected to postharvest storage.…”

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Harvest season and seed physiological potential of ‘dedo-de-moça BRS Mari’ hot peppers

Gomes

Damasceno

Costa

et al. 2017

SCA

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The cultivation of chili peppers (Capsicum spp.) plays a key role in the fresh vegetable, condiment, and preserve markets. The determination of the harvest season suitable for seed production is crucial to obtain high-quality seeds and ensure production success. Therefore, this study aimed to determine the harvest season of 'dedo-de-moça BRS Mari' hot peppers that provides the maximum seed physiological potential. The flowers in anthesis were labeled daily and the fruits were harvested 25, 40, 55, 70, 85, and 100 days after anthesis (DAA) and classified as green, yellowish green, orange, red, extreme red, and intense red, respectively. The seed physiological potential was determined by using the water content, dry matter, germination, first germination count, germination rate index, and accelerated aging tests. The seed dry matter increased steadily until 55 DAA (3.95 mg per seed), then increased slightly to 70 DAA (4.05 mg per seed), and stabilized from 85 to 100 DAA. The harvested seeds began to germinate at 55 DAA with approximately 40% germination, which peaked at 70 DAA with 87% germination; this value was maintained until 100 DAA. The highest values of the germination rate index were found at 70, 85, and 100 DAA. An increase in seed vigor was observed, based on the accelerated aging test, which peaked at 85 DAA and subsequently decreased. The peppers were harvested between 70 and 85 DAA and red to extreme red were found to be the most recommended colors to obtain 'dedo-de-moça BRS Mari' hot pepper seeds with high physiological potential. Key words: Capsicum baccatum var. pendulum. Germination. Vigor. Physiological maturity. ResumoO cultivo de pimentas (Capsicum spp.) representa um importante papel no mercado das olerícolas in natura, no segmento de condimentos, e conservas. A determinação do ponto ou intervalo adequado de colheita dos frutos para a produção de sementes é fundamental para a obtenção de sementes de qualidade e para garantir o sucesso da produção. Diante disso, objetivou-se determinar o estádio de colheita de

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“…A conservação eficiente das sementes, durante seu armazenamento, depende, dentre outros fatores, da sua qualidade inicial, a qual, por sua vez, está diretamente relacionada com a proximidade entre o momento em que as sementes atingem a maturidade fisiológica e o momento em que são colhidas (RICCI et al, 2013).…”

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Qualidade fisiológica de sementes de pimenta obtidas em frutos de diferentes estágios e armazenadas

Lima

Smiderle²

2014

Sem. Ci. Agr.

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ResumoO objetivo nesse trabalho foi avaliar a qualidade fisiológica de sementes de pimenta em frutos de diferentes maturações, submetidas ao repouso pós-colheita nos frutos e o armazenamento das sementes. As sementes utilizadas foram colhidas em julho de 2009, de plantas cultivadas em casa de vegetação da área de transferência de tecnologia da Embrapa Roraima. O delineamento experimental utilizado foi inteiramente casualizado em esquema fatorial 3x2x2 com 4 repetições. Na colheita foram retirados frutos imaturos, intermediários e maduros, totalizando 90 frutos. Em parte dos frutos colhidos, a extração das sementes foi imediata e nos demais foram mantidas por 10 dias em temperatura ambiente a 25°C. A qualidade fisiológica das sementes foi avaliada quanto a germinação (plântulas normais e anormais) e velocidade de germinação. Os testes foram repetidos três meses após a colheita para avaliar o armazenamento. A colheita de frutos de pimenta no estádio intermediário (verde alaranjado) apresentou sementes com melhor qualidade fisiológica em relação às obtidas de frutos maduros (vermelho intenso) e frutos imaturos (verdes). A permanência das sementes no interior dos frutos, por dez dias, melhora a qualidade fisiológica das sementes obtidas de frutos colhidos precocemente (intermediário). As sementes extraídas dos frutos dez dias após a colheita apresentam melhor qualidade fisiológica aos três meses, do que as sementes extraídas logo após a colheita. Palavras-chave: Capsicum frutencens L, vigor, coloração de frutos AbstractThe objective of this study was to evaluate the physiological quality of pepper seeds as a function of maturity, presence of seeds in fruits and storage. Pepper seeds used for the study were collected in July 2009, from plants grown in greenhouse belonging to Embrapa Roraima sector of technology transfer. The experimental design was entirely randomized under a (3 x 2 x 2) factorial scheme. At harvest, immature, intermediate and ripe fruits were collected, totalizing 90 fruits. Extraction of seeds was immediate in part of fruits, and therest of fruits were left for 10 days at room temperature at 25 °C. Seed physiological quality was evaluated concerning germination, germination speed. The tests were repeated three months after harvest to assess storage aspects. According to results, the maturation stages that showed better physiological quality were the seeds originated from green orange color fruits (intermediate class) as compared to those obtained from ripe (intense red color) fruits and immature (green) fruits. Seed permanence within fruits for ten days improved its physiological quality among early harvested fruits (intermediate). Seeds extracted from fruits ten days after harvest showed better physiological at three months of storage, when compared to seeds extracted immediately after harvest.

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Qualidade de sementes de pimenta jalapenho em função da maturação e tempo de permanência nos frutos

Cited by 19 publications

References 13 publications

Aspects of Peltophorum dubium Sprengel (Taubert) seeds in an aerial seed bank

Aspects of Peltophorum dubium Sprengel (Taubert) seeds in an aerial seed bank

Harvest season and seed physiological potential of ‘dedo-de-moça BRS Mari’ hot peppers

Qualidade fisiológica de sementes de pimenta obtidas em frutos de diferentes estágios e armazenadas

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