High doses of nitrogen, phosphorus and potassium in irrigated systems may lead to an increase in the productivity of industrial tomatoes, but may also alter the final quality of the fruits. The objective of this was to evaluate the agronomic yield and post-harvest quality of industrial tomatoes, under NPK doses for climatic conditions of Northern Minas Gerais state, Brazil. The study was conducted in the city of Jaíba, MG, Brazil, in randomized block design with four repetitions in a 3 x 3 factorial scheme, consisting of three doses of N (90, 135 and 180 kg ha-1), of P (270, 405 and 540 kg ha-1) and of K (225, 337 and 450 kg ha-1), corresponding to 50, 75 and 100% of the fertilization recommendation; and three tomato hybrids: BRS Sena, Heinz 9553 and BHN 0574. The following variables were evaluated: number of bunches, number and weight of fruits, productivity and fertilizer efficiency index; besides the physico-chemical characteristics: firmness, soluble solids concentration, pH and pulp industrial yield. The hybrid Heinz 9553 showed higher weight, number of fruits, productivity and industrial yield at doses of 75 and 100% of NPK recommendation. The fertilizer doses did not interfere on the soluble solids, pH and fruit firmness of the three hybrids. The hybrid BRS Sena was not influenced by the increase of NPK and there was lower weight, number of fruits, productivity and fertilization efficiency. The hybrid BHN and Heinz hybrids can be indicated for cultivation at doses of 100 and 75% of NPK recommendation, because they promote higher agronomic yield and do not alter the post-harvest quality of the tomatoes.

The italian zucchini is a much-appreciated vegetable, besides being an economically viable alternative to the farmers. Nutrition with N and P is essential to produce vegetables, however, for the italian zucchini there are few scientific studies to guide fertilizing with these nutrients. The objective of this work was to evaluate the production of italian zucchini after N and P fertilization. The study was conducted in the agricultural area of the Irrigated Perimeter of Gorutuba, in the municipality of Nova Porteirinha-MG. A randomized block design with three replications was used. The treatments were arranged in a 5 × 4 factorial, using five doses of N (0, 50, 100, 150 and 200 kg ha -1 ) and four doses of P (0, 50, 100 e 150 kg ha -1 of P 2 O 5 ), in the form of urea and monoammonium phosphate, respectively. NF was increased with N and P doses, and the combination of 150 kg ha -1 of P 2 O 5 with 100 kg ha -1 of N was responsible for the highest number of fruits, with 17.52 fruits per plot. The combination of 100 kg ha -1 of N and 150 kg ha -1 of P 2 O 5 resulted in the maximum PROD, corresponding to 10,834.67 kg ha -1 . The elevation of P and N doses leads to an increase in the agronomic yield, without a marked change in the quality of the italian zucchini.

The baby corn has been gaining ground in the market and arousing interest of producers. However, there is a barrier in its production chain due to the lack of scientific knowledge in the harvest and post-harvest strategies. Therefore, the objective of this study was to evaluate the changes in the physicochemical characteristics of the baby corn stored at different temperatures and under controlled atmosphere. The studies were performed at UNIMONTES with the 'AG 1051' baby corn spikletes. Two tests were performed, one considering the spikelets in the straw and the other with the husked spikelets. The tests were carried out under CRD, in a 2 × 2 × 6 factorial scheme, that is two storage temperatures (16 and 25 °C), two controlled atmosphere conditions (with and without PVC plastic wrap) and six evaluation periods (0, 3, 6, 9, 12 and 15 days after harvest) with four replications. The quality characteristics of the spikelets were analyzed in the post-harvest. the post-harvest quality preservation of baby corn in the straw and the husked ones was affected by temperature, controlled atmosphere and evaluation period. The best storage condition to maintain the main quality characteristics of the spikelets at post-harvest was observed at the temperature of 16 ºC with controlled atmosphere use. For the spikelets preserved with the presence of straw, the maximum storage time for maintenance of post-harvest characteristics was four days, and for spikelets stored without straw, the maximum storage time was two days and 12 hours, both at refrigerated temperature (16 °C) and under controlled atmosphere.However, this vegetable presents a short post-harvest life, due to its active metabolism, and the shelf life of the product varies inversely with the respiration rate, causing reduction in water content, weight loss, changes in aroma, flavor and darkening of spikelets, making them undesirable regarding quality and appearance of the product (Bakry, El-Shorbagy, El-Desuki, El-Behairy, & Ibrahim, 2015; Saltveit, 2016).Aiming to develop the best strategy of storage of these horticultural crops, studies are necessary to guarantee the best yield and less waste of them. Some treatments, associated to refrigeration and controlled atmosphere storage, have shown good results in delaying senescence and prolonging life during storage (Vani, Rajasekhar, & Reddy, 2013).

Passion fruit (Passiflora edulis) has aroused interest from producers, leading to an intense demand for technical information, especially for obtaining quality seedlings. The objective of this study was to evaluate passion fruit seedlings according to age and morphological characteristics. The experiment was carried out at the seedling nursery of the State University of Montes Claros, Campus Janaúba-MG, Brazil, from March to June 2017. The cultivars BRS Gigante Amarelo, BRS Rubi do Cerrado, BRS Pérola do Cerrado and Redondo Amarelo were evaluated, distributed in randomized blocks with five replications, in a split-plot scheme (4 × 4). There was an adjustment of the model (IQM = 6.3857 − 0.3892 NL + 3.3512 SD − 0.2063 SPAD + 0.0730 LA), which proposes a quality parameter of passion fruit seedlings, high level of significance and coefficient of determination, necessary for the reliability and accuracy of the results obtained. Considering the proposed model (IQM), there is no need for destructive analysis, and evaluations can be performed in the nursery itself as soon as a seedling lot reaches the recommended height of 30 cm. The evaluated characteristics contribute significantly to the quality of the seedling, and it is recommended, besides the height measurement, to evaluate the number of leaves, the stem diameter, the leaf area and the SPAD index, because the combination of these parameters will guarantee the necessary quality of the seedlings to be transplanted in the field.