A cultura do tomateiro é uma das mais importantes hortaliças cultivadas no Brasil, sendo sua utilização muito variada e com grande número de tipos de frutos existentes. O presente trabalho teve como objetivo verificar a influência dos estádios de maturação e armazenamento pós-colheita na qualidade fisiológica das sementes de tomate cereja da variedade Carolina. O trabalho foi realizado na fazenda experimental da Universidade da Integração Internacional da Lusofonia Afro-Brasileira (UNILAB), localizada em Piroás, distrito de Redenção-CE. Foi utilizado o (DIC), em esquema fatorial 3x4 (três períodos de maturação: 40, 50 e 60 dias e quatro períodos de armazenamento pós-colheita: 0, 5, 10, 15 dias). Foram avaliadas as variáveis: emergência de plântulas (%; índice de velocidade de emergência (IVE); altura de plântulas; diâmetro de caule e comprimento de raiz. Sementes coletadas aos 40 DAA podem ser semeadas quando feito o armazenamento pós-colheita durante três dias. Sementes coletadas aos 50 DAA pode-se fazer a semeadura quando não for feito o armazenamento pós-colheita. Sementes com maior vigor foram obtidas quando coletadas aos 50 DAA e não armazenadas. O menor período de maturação e de armazenamento pós-colheita reduz os custos da produção de sementes.
In recent years, there has been a growing interest in sustainable agricultural production, aimed at cleaner production, with less soil degradation, with pollution control and greater social responsibility. In this sense, the objective of the present study was to evaluate the biometry and productivity of different cultivars of pumpkins (Cucurbita moschata) cultivated in different soil managements. The experiment was carried out in an area located in the municipality of Acarape, Ceará, where two cultivation systems were used, they were: conventional and in alleys and three pumpkin cultivars, using a completely randomized design with split and subdivided plots. The biometric analyzes contemplated the determination of the stem diameter (ST) and the height of the plants (HP) along the time of cultivation. The dry mass of shoot (DMS), stem (DMST), root (DMR) and leaf area (LA) were also evaluated. In the fruits, the number of seeds (NS), the dry mass of the seeds (DMSS) and the productivity (P) were evaluated. Higher values of root height and dry mass were found in plants cultivated under conventional management. This fact, however, was not observed analyzing the factor cultivars alone. Among the cultivars, Sergipe presented higher values of DMS. The isolated environmental factor did not influence the seed dry mass and productivity variables. However, the interaction between cultivars and soil management was significant for NS, DMSS and P. It was concluded that, for greater productivity, it is recommended to cultivate the pumpkin cultivar moranga in the conventional environment.
A cultura do girassol apresenta grande importância econômica mundial, cultivada em todos os continentes com uma área aproximadamente de 18 milhões de hectares. O presente trabalho teve como objetivo determinar a melhor cultivar de girassol no cultivo de transição agroecológico. O experimento foi realizado na fazenda experimental da UNILAB, Redenção-CE. A variedade e os híbridos avaliados foram: BR- 122; BR-323; Aguará-4 e a Olisun-3. Para as variáveis altura de plantas, número de folhas, área foliar por planta o delineamento experimental utilizado foi (DBC) em esquema fatorial 4x4 constituídos por quatro cultivares e quatro épocas de coleta (36, 51, 66 e 81 dias). Foi realizado o teste de Tukey a 5% de probabilidade. As variáveis avaliadas foram: altura de plantas, número de folhas e área foliar total. Área foliar foi estimada utilizando o modelo potencial . A Olisun apresentou maior área foliar total por planta, enquanto que a BR-323 apresentou maior número de folhas. Entretanto, a produtividade entre as cultivares foi similar. Por isso, recomenda-se a variedade BR-122/V2.000 por permitir a multiplicação de sementes pelo agricultor.
Mineral fertilization promotes good results for the components of production and quality of okra fruit; however, it raises the cost of production, making it, sometimes, unviable to the small producers. Thus, this study aimed to evaluate organic and mineral fertilization in different forms, in the components of production, productivity, and quality of okra fruits. The experiment was carried out, under full sunlight, in a completely randomized design (CRD), with six replications. The treatments corresponded to the different forms of fertilization, being: MF = mineral fertilization with NPK (100% of the recommended dose); BF = fertilization with bovine biofertilizer (100% of the NPK contents); VA = fertilization with vegetable ash (100% of NPK contents); MFBF = mineral fertilizer (50%) + bovine biofertilizer (50%); MFVA = mineral fertilizer (50%) + vegetable ash (50%); C = control (without fertilization). The variables analyzed were as follows: number of fruits per plant (NFP), average fruit mass (AFM), fruit length (FL), fruit diameter (FD), fruit skin thickness (FST), and yield (Y). Therefore, the use of bovine biofertilizer in isolation or supplemented with mineral fertilization enhances the production of okra and improves the quality of the fruits, reveling as promising alternatives for growing okra.
To mitigate the effects of conventional agriculture, aiming at the sustainability of the ecosystem, it is necessary to use techniques that preserve the environment, reconciling food production with the reduction of environmental impacts in a sustainable way. In this sense, carrying out the cultivation keeping the native forest can be an alternative for maintaining sustainability in agricultural systems. Therefore, the objective of this work was to evaluate the postharvest quality of three pumpkin varieties (Cucurbita moschata) submitted to different soil management, aiming to obtain subsidies for the establishment of a promising management of this vegetable under field conditions. The study was carried out in an area located in the municipality of Acarape, Ceará, where two cultivation systems and three pumpkin cultivars were used, distributed in a Amorim et al.
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