A romã é conhecida por seus efeitos benéficos a saúde, principalmente por suas propriedades antioxidantes e é amplamente cultivada em diferentes regiões do mundo, o que reflete na grande diversidade de composição dos frutos. Desta forma o objetivo do presente trabalho foi avaliar as características físicas, físico-químicas, bioquímicos e composição centesimal da romã cv. Comum cultivada no Oeste Paulista. Os frutos utilizados foram colhidos no estádio de maturação comercial, no município de Alvares Machado, região de Presidente Prudente, estado de São Paulo e avaliados quando ao peso, firmeza, coloração, pH, sólidos solúveis (SS), acidez titulável (AT), Ratio (SS/AT), compostos fenólicos totais, atividade antioxidante por DPPH, antocianina monomérica total, composição mineral, umidade, cinzas, proteínas, lipídeos, fibras, açúcares redutores e valor calórico total. Os frutos de romã cv. Comum apresentaram a casca de coloração laranja e polpa (sarcotesta) vermelho-violeta. O potássio (K) foi o macronutriente predominante na casca e na polpa. A polpa apresentou alto teor de sólidos solúveis e baixo teor de acidez titulável, caracterizando sabor adocicado. A casca apresentou maior teor de compostos fenólicos totais e atividade antioxidante em relação a polpa. A polpa apresentou maior valor calórico total.

Modified atmosphere packaging (MAP) was evaluated for respiration rate, color, total phenolic content (TPC), antioxidant activity DPPH, flavonoids and pigments of fresh-cut Tropic Beauty peach. Modified atmospheres (21% O2 [Control], 5% CO2 [MAP1], 8% CO2 [MAP2] and 0% O2 [MAP3]) were evaluated for storing fresh-cut peaches for up to 10 days in temperatures of 5ºC. MAP significantly (p<0.05) affected the proprieties investigated as compared to control. Peaches with MAP3 have higher respiration(p<0.05) respiration rate than the peaches with the other treatments. Fresh-cut peaches in MAP2 showed more stable (p<0.05) carotenoid and anthocyanin contents, better attributes in the bioactive compounds. MAP1 and MAP2 exhibited better antioxidant proprieties at low storage temperature (5ºC) for up to 10 days storage and similar result was verified by principal component analysis used where modified atmosphere was observed as major factor.

Constant changes during the seed maturation process affect its final quality and the post-harvest fruit resting, which can improve seed physiological quality. Therefore, the objective of this study was to evaluate the physiological and enzymatic activities of eggplant seeds extracted from fruits harvested at different ages and resting periods after harvest. Fruits were harvested presenting different colors at 40, 50, 60, and 70 days after anthesis (DAA) and rested for 0 (freshly harvested fruits), 10, and 20 days. The experimental design was set as completely randomized, with four replications and evaluated seeds extracted from six fruits per plot. The resting periods in eggplant fruits harvested at less than 60 DAA improved the mass of 1000 seeds, germination, vigor, and protein content. Seeds with higher germination and vigor presented lower dismutase (SOD), catalase (CAT), and peroxidase (POX) enzymatic activity. The results indicated that the ideal moment of eggplant harvest for seed production is when the fruit reaches the yellowish-brown color corresponding to about 60 DAA; however, if the eggplant fruit is harvested earlier (40 or 50 DAA), it has to rest for about 10 to 20 days to achieve high physiological quality (germination and vigor).

The growth process and root quality. However, few studies are evaluating the influence of the interaction between nutrients in this culture. The objective of this work was to evaluate the effects of the combination of nitrogen fertilization with boron on the production characteristics and quality of the beet Tall Top Early Wonder. The experiment was carried out at the São Manuel Experimental Farm (FCA/Unesp), located in São Manuel-SP. The experimental design was in randomized blocks, with four replications. The evaluated factors were: nitrogen and boric fertilization, in the factorial scheme (2 x 2), totaling 4 treatments: T1 (0 kg ha-1 of N and 0 kg ha-1 of B), T2 (0 kg ha-1 of N and 4 kg ha-1 of B), T3 (90 kg ha-1 of N and 0 kg ha-1 of B) and T4 (90 kg ha-1 of N and 4 kg ha-1 of B). The results showed that there was a positive interaction between nitrogen and boron when applied together, providing increases in productivity and greater uniformity in beetroots.