O objetivo do presente trabalho foi avaliar a emergência das espécies de Crotalaria juncea e Crotalaria ochroleuca, em condição de campo, em função da profundidade de 1 a 4 cm semeadura. O experimento foi conduzido na área experimental do Centro de Ciências Agrárias e da Biodiversidade (CCAB) da Universidade Federal do Cariri (UFCA), Crato-CE. O delineamento inteiramente casualizado, em esquema fatorial 2x4, com quatro repetições, totalizando 48 observações. O primeiro fator foram as duas espécies de crotalária (C. juncea e C. ochroleuca) e o segundo foi a profundidade de semeadura (1; 2; 3 e 4 cm). A irrigação utilizada foi por meio de rega (com regadores). Os fatores avaliados foram a porcentagem de emergência aos 7 dias após a semeadura (DAS), o número de dias necessários para estabilizar a emergência (NDE), o índice de velocidade de emergência (IVE) e a altura das plantas aos 7 DAS. É interessante que seja feita a escolha correta da profundidade utilizada, não sendo recomendado o plantio em 1 cm, embora essa profundidade facilite o índice de velocidade de emergência, no entanto, as sementes ficam mais expostas a maiores temperaturas e pode ocorrer rápida falta de água, comprometendo o crescimento e desenvolvimento ideal da planta. A pesquisa mostrou que, para obter a melhor emergência das espécies (C. juncea e C. ochroleuca) recomenda-se a profundidade de 4 cm.

A família Poaceae é constituída de plantas popularmente conhecidas por gramíneas e possui elevado número de espécies adaptadas a diferentes habitats. Com vista nisso, o presente trabalho objetivou analisar a influência dos estresses hídricos e salinos no teor de aminoácidos totais em plantas de Pennisetum glaucum. Para o estresse salino, as plantas foram submetidas ao tratamento com 60 mM de NaCl, enquanto que para o estresse hídrico usou-se 8% de polietilenoglicol nas soluções nutritivas. O delineamento experimental utilizado foi o inteiramente casualizado com três tratamentos (estresse hídrico, salino e controle) e sete repetições. O teor de aminoácidos como uma resposta à deficiência hídrica e à salinidade teve um maior registro nas folhas novas, onde apenas a salinidade influenciou no teor de aminoácidos. De modo geral, o teor de aminoácidos em folhas novas, intermediárias e raízes não foram influenciadas pelos estresses estudados. Com isso, destaca-se que a espécie mostrou-se bem adaptada às condições de estresse hídrico e salino aumentando o teor de aminoácidos nos seus tecidos.

Changes in the population's eating habits have expanded the French fries market. However, the need for refrigerated storage to supply sprouts and maintain a constant supply to the industry has led to a reduced number of cultivars suitable for processing due to the accumulation of sugars and browning after frying. Because of this, the objective of this study was to evaluate the suitability of the Donata and BRS F132 cultivars for use in the pre-fried potato processing industry. The tubers were stored at 6 and 8 °C for up to 180 days and the analysis of sprouting, total soluble sugar (TSS), reducing sugar (RS), non-reducing sugar (NRS), post-frying color by scale visual color used by the industry and L* and b* parameters. The sprouting was higher at 8 °C and in the BRS F 132 cultivar. The sugar content was high in both cultivars, however, the color remained adequate. It is concluded that the Donata and BRS F132 cultivars are suitable for the potato processing industry, and Donata presented better quality parameters. Conditioning at 8 °C is recommended in both cultivars that maintained the quality for 180 days.

Resumo: O desenvolvimento de técnicas que proporcionem maiores produtividades é necessário para atender a crescente demanda por orgânicos. Portanto, objetivou-se avaliar a produtividade de tomate cereja em função do uso de mulching, calcário e esterco bovino em sistema orgânico. A pesquisa foi realizada no Centro de Ciências Agrárias e da Biodiversidade da Universidade Federal do Cariri, Crato-Ceará. Foram avaliados o comprimento e o diâmetro dos frutos, o número de frutos por planta, a massa por fruto, massa de frutos por planta e a produtividade. Os resultados evidenciaram efeito positivo do uso do calcário para elevação da saturação por bases a 80%, enquanto que o mulching não teve efeito significativo. Quanto à adubação orgânica com esterco bovino, apresentou resposta linear até a dose de 5 L por cova, com valores crescentes de produtividade. Conclui-se que o uso de calcário e esterco bovino beneficiam o desenvolvimento e produtividade do tomate cereja, enquanto o uso de mulching não melhorou o desempenho da cultura. Palavras-chave: Solanum lycopersicum var. cerasiforme ; Adubação orgânica; Proteção do soloAbstract: The development of techniques that provide greater productivity is needed to meet the growing demand for organic. Therefore the objective of the present work was to evaluate the productivity of cherry tomatoes due to the use of mulching, limestone and bovine manure in the organic system. The research was carried out at the Center of Agrarian Sciences and Biodiversity (CCAB) of the Federal University of Cariri, Crato-Ceará. The length and diameter of the fruits, the number of fruits per plant, the mass per fruit, the fruit mass per plant and the productivity were evaluated. The results showed a positive effect of the use of limestone to raise base saturation to 80%, while mulching did not have a significant effect. Regarding organic fertilization with bovine manure, a linear response up to the dose of 5 L per pit, with increasing values of productivity. It was concluded that the use of limestone and bovine manure benefited the development and productivity of cherry tomatoes, while the use of mulching did not improve crop performance.

Light color after frying and sprouting are the main quality parameters evaluated by the pre-fried potato processing industry. Therefore, the objective of this study was to evaluate the suitability for use by the pre-fried potato processing industry, the cultivars Asterix, Corsica, Edison, Lionheart and Markies through the sprouting and post-frying color of the sticks. For this, the tubers were stored at 8 °C (RH 90% ± 2) for up to 180 days. Sprouting started at 60 days with the exception of ‘Lionheart’, which started sprouting at 120 days. At 150 and 180 days, all cultivars showed large sprouts, but still suitable for the processing industry. Visually, the Asterix cultivar remained in category 3 and the most cultivars in 2. The parameter L * reduced with the storage time in all cultivars, indicating the browning of the sticks, which was accompanied by the reduction of parameter b *, indicating less yellowing. It is concluded that All cultivars can be used by the processing industry after storage at 8 °C for 180 days. These results are important to the process industry due to difficult from storage of tubers under refrigeration in reason of browning during fried.

Aims: Evaluate four potato genotypes in terms of sprouting and coloring depending on the storage time at 8 °C and their potential for use by the potato processing industry.Study Design: The experiment was carried out in a completely randomized design, in a split-plot scheme with five replications, each replication consisting of two tubers.Place and Duration of Study: Tubers were obtained from the production area of Perdizes, Minas Gerais, Brazil (Latitude 19º 21’ 10’’ N and Longitude 47º 17’ 34’’ E and 1000 m).Methodology: The genotypes Alibaba, Arsenal, Antartica and Babylon were stored at 8° C for up to 180 days, with the analysis of sprouting, visual coloration before and after frying, parameters L*, b* and c*. Results: All potato genotypes were light colored before frying, category 1 (USDA). Babylon obtained the best parameters of b * and c *. Antartica and Babylon potato genotype showed low sprouting.Conclusion: The Arsenal and Antartica potato genotype have potential for use by the processing industry due to the color of the sticks before and after frying and low sprouting.The Alibaba potato genotype was darkly colored after frying. Babylon was the potato genotype with the best color of the sticks after frying and less germination.

The physical characteristics of cashew-dwarf peduncles were evaluated to later indicate the best clones for natural consumption and/or processing, considering that consumers appreciate products for their visual attractiveness. The objective of this study was to analyze peduncles of dwarf cashew clones obtained from the Genetic Improvement Program of Embrapa Agroindústria Tropical, Cruz-CE experimental area, in order to make inferences about the physical characteristics and indicate the best clones for natural consumption and/or processing. The analyzed variables were: total mass of the cashew (MT), chestnut mass (MC), peduncle mass (MP), apical diameter (DA), basal diameter (DB), length and firmness. The experiment design was a randomized complete block design with 25 treatments (clones) with 3 replications and up to 12 cashews per plot (four plants in total). The analysis of variance and the comparison of the means by the Scott and Knott test was realized. When analyzing the MT values, it was found that 100% of the clones were classified as types 4 (approximately 150 g), 5 (approximately 100 g) and 6 (approximately 150 g) cashews/tray. As for MC, there was a variation from 8.18 to 15.08 g. General averages of 95.16, 50.07 and 41.38 mm were found for the variables length, DB and DA of peduncle, respectively. It is concluded that, in general, all clones presented good characteristics; however, clone 108-6 is the preference for most consumers since it has red staining, as did the control (CCP 76). Therefore, all clones presented desirable characteristics for natural consumption and/or processing.

The Northeast region of Brazil is most affected by the reduction in water availability, contributing directly to the accumulation of salts at the soil surface. Therefore, this study aimed to evaluate the adaptive responses of Pennisetum glaucum and Pennisetum purpureum submitted to salinity. Seeds of two gramineous species, submitted to the saline treatment of 60 mM NaCl, were used in the nutrient solutions. K + absorption, accumulation of organic solutes and ions were measured as tolerance indicators. The experimental design was completely randomized, in a factorial 2x2 scheme (P. glaucum and P. purpureum and two control treatments and saline stress). The soluble carbohydrate content as a response to salinity had a greater effect on P. purpureum plants grown in solution. Regard to the stress, the species that most stood out was P. purpureum, presenting a lower accumulation of salts, and increasing the carbohydrate content in the plant tissues, making the P. purpureum plants have a tolerance greater than P. glaucum.