O ponto de colheita de Physalis angulata L., visando à obtenção de frutos para consumo humano, é indicado na literatura. Entretanto, não são estabelecidos critérios de colheita de frutos para a aquisição de sementes. O trabalho objetivou determinar o ponto de colheita de sementes de P. angulata L., de acordo com a coloração do cálice dos frutos, bem como avaliar a viabilidade do seu armazenamento. Para isso, foram colhidos frutos de plantas matrizes, em três estádios de maturação, levando-se em consideração a coloração do cálice (verde, amarelo e amarelo-amarronzado). Utilizou-se delineamento inteiramente casualizado, em esquema fatorial compreendendo dois tipos de embalagem (saco de papel e recipiente de vidro) e quatro épocas de avaliação (logo após a colheita e aos 45, 90 e 135 dias após o armazenamento - DAA), sendo isolado o fator ambiente de armazenamento. Concluiu-se que sementes de P. angulata devem ser obtidas de frutos com cálice de coloração verde e utilizadas logo após a colheita, uma vez que há perda expressiva na germinação das mesmas, após 45 DAA, tanto em câmara de armazenamento quanto em ambiente refrigerado, independentemente se utilizada embalagem de vidro ou de papel.

ABSTRACT:The increasing consumer demand for fruit quality justifies the development of researches that combine orchards management and consumers' perception of the quality of the product. The aim of this study was to evaluate the effect of nitrogen fertilization combined with green pruning intensity on fruit quality of 'Chimarrita' from high density peach trees during three consecutive harvest seasons.

The fig is one of the most perishable fruits during the postharvest phase, which has prompted studies to evaluate the effects of substances applied on figs after harvest in order to extend their postharvest life. The aim of this work was to evaluate the effects of different concentrations of 1-methylcyclopropene (1-MCP) on the postharvest quality of Roxo de Valinhos figs. The research was conducted by applying 4 concentrations of 1-MCP (0 -control, 5, 10, and 20 µg L -1 ) on figs, after which the fruits were evaluated at five different storage times (0, 4, 8, 12, and 16 days). The results showed that 20 µg L -1 of 1-MCP provided the best fruit firmness at day 12 after harvest. The 1-MCP treatments did not improve the total amount of total soluble solids (TSS), but we observed higher amount of total solids from 12 to 16 days of storage. Higher acidity was observed in the figs without a 1-MCP treatment at 8 days of storage and with 20 µg L -1 of 1-MCP after 12 days of storage. 1-MCP did not affect fruit weight loss. The figs treated with 1-MCP showed promising and rising values of firmness, acidity, and TSS at the highest dose. The TSS concentration tended to increase at the higher doses. As a result, it could be interesting to assay this substance with applications with higher concentrations than those used in the present study. Additional key words:Ficus carica, 1-MCP, firmness, soluble solids, titratable acidity, weight loss. fig, which rapidly decreases the quality of the fruit after harves, because it is subject to rapid physiological breakdown. This characteristic affects the efficiency of the commercialization and exportation of the fruit around the world (Gözlekçi et al., 2008;Paula et al., 2007;Sharma and Singh, 2013). The postharvest life of the fresh fig fruit is normally 7-10 d even when it is stored under low temperatures (Ozkaya et al., 2014).Some studies have been conducted to investigate the effects of substances applied on figs to improve its postharvest conservation, such as calcium chloride, fungicides, sodium hypochlorite, and 1-methylcyclopropene (1-MCP) (Gözlekçi et al., 2008;Irfan, 2013;Paula et al., 2007;Watkins, 2008). 1-MCP is an unsaturated cyclic olefin that acts as a competitive ethylene antagonist, i.e. it blocks ethylene receptors and can be used to control ethylene production, respiration rate, and softening and extends the shelf-life of a wide range of fruits (Freiman et al., 2012;Sozzi et al., 2005;Terra et al., 2014;Watkins, 2008). However, 1-MCP applications on fruits may not always have similar results on the postharvest quality since its effect has been shown to vary according to the climacteric fruit species, cultivar, maturation and ripening stages of the fruit, and 1-MCP application forms (Freiman et al., 2012;Sozzi et al., 2005; Watkins, 2006;Zhang et al., 2017).There are few reports on the postharvest behavior of figs treated with 1-MCP. Gözlekçi et al. (2008) showed that 10 µg L -1 of 1-MCP slowed the softening of Bardakci figs and retained fruit firmness during...

The goal of this study was to increase the fresh-cut zucchini shelf-life with glutamic acid biofertilizer. Treatments consisted of foliar applications of aqueous solutions of the bacterial fermentation containing 30% L-glutamic acid, at 14 th , 21 st , 28 th , and 35 th days after transplanting, at 0.2 and 0.4 mL L -1 , 100 mL per plant of 7 days, starting at 14 days after transplant during the whole cycle (42 days). Zucchini fruits were pre-selected, sanitized and minimally processed into strips. Fruits were weighed (100 g) and placed into plastic bags of low density polyethylene (70 μm). After sealing bags were stored. Plastic bags were kept at 6 ± 1 ºC and 95% relativity humidity. Weight loss, soluble solids content, pH, titratable acidity, and color were performed at regular intervals of two days during eight days. To increase the fresh-cut zucchini shelf-life it is recommended to apply 0.4 mL L -1 glutamic acid biofertilizer.Key words: Cucurbita pepo, summer squash, minimally processed, aminoacids, bacterial fermentation. RESUMEN El objetivo de este estudio fue evaluar el aumento de la vida útil del fruto de calabacín cortado fresco con el uso de ácido glutámico. Los tratamientos consistieron en aplicaciones foliares de soluciones acuosas de la fermentación bacteriana de ácido L-glutámico

weekly, totaling 7 evaluations. The results demonstrated that pruned plants produced higher caliber fruits. However, the plants that did not receive pruning were the most productive. Therefore, as long as the price of physalis fruit is a matter of quantity and not of quality, it is not recommended to perform maintenance pruning on the plants.

The postharvest phase is an important step in the fruit production chain. Fig is an especially perishable fruit, which has encouraged researchers to study the effects of various substances on the postharvest life of this commodity. The objective of the present work was to evaluate the effects of calcium chloride (CaCl2) and 1-methylcyclopropene (1-MCP) on the postharvest quality of the ‘Roxo-de-Valinhos’ fig cultivar. This study aimed to verify the effects of applying a 4% solution of CaCl2 and a 1% solution of 1-MCP to figs and evaluating at four different storage times (0, 2, 4, and 6 days). The results showed that a 4% solution of CaCl2 promoted better firmness, and when CaCl2 at 4% was applied in combination with 1-MCP at 10 μg l-1, the maturation index increased. In contrast, the 1-MCP treatment alone did not improve the postharvest quality of ‘Roxo-de-Valinhos’ ripe fig. We conclude that application of 4% solution of CaCl2 and 1-MPC at 10 µg l-¹ promote firmness and increase maturation index of 'Roxo-de-Valinos' figs.