8 documents found, page 1 of 1
Melatonin Improves Drought Tolerance in Zinnia elegans Through Osmotic Adjustme...
Coêlho, Ester dos Santos; Ribeiro, João Everthon da Silva; Silva, Elania Freire da; Lima, John Victor Lucas; Gomes, Ingrid JustinoWater stress is the main abiotic factor that limits the development and commercial quality of ornamental plants, such as Zinnia elegans. This study aimed to evaluate the ability of exogenous melatonin (MEL) to attenuate the deleterious effects of water deficit by modulating stomatal physiological, biochemical and structural parameters. Z. elegans plants were subjected to four water regimes (80% FC, 20% FC, earl...
Economic indicators of nitrogen fertilization in sunflower cultivars
Souza, Almir Rogerio Evangelista de; Souza, Ênio Gomes Flôr; Tartaglia, Francilene de Lima; Santos, Allysson Pereira dos; Barros Júnior, Aurélio PaesSunflower is one of the most important oilseeds in the world. However, cultivation in semi-arid regions requires analysis of production costs and profitability, ensuring effective decision-making, focused on farming procedures and techniques. In two agricultural crops, 2016 and 2017, experiments were conducted to evaluate the economic indicators of sunflower cultivars (‘Aguará 06’, ‘Altis 99’, ‘Multissol’ and ‘...
Accumulation of macronutrients in cowpea and weeds in competition and under soi...
Oliveira, Fernando Sarmento de; Sousa Sarmento, Erivanessa Costa; Dombroski, Jeferson Luiz Dallabona; Silva, Daniel ValadãoThe ability of a plant species to succeed in colonization of agroecosystem depends on its efficiency in the use of growth resources even in deficient conditions. The present study aimed to evaluate the effects of competition and water deficit in the soil on the accumulation of macronutrients of Vigna unguiculata L. Walp., Commelina benghalensis L. and Waltheria indica L. The study was conducted in a greenhouse,...
Nutrient uptake in sesame cultivars under cultivation in semiarid conditions
Ribeiro, Rayanne Maria Paula; Albuquerque, José Ricardo Tavares de; Pereira, Carla Caroline Alves; Pereira, Luiz Aurélio FreitasSesame is considered the oldest oleaginous seed in use by mankind. It is a culture of high morphophysiological complexity with great variability in growth habit. The accumulation of nutrients in the sesame crop is, in relative terms, proportional to its average productivity. It is a crop that requires the availability of sufficient amounts of nitrogen, phosphorus and potassium to obtain a desired yield. T...
ECONOMIC EVALUATION OF LETTUCE FERTILIZED WITH BIOMASS OF Calotropis procera IN...
Flor Souza, Enio Gomes; Sousa Santana, Falkner Michael de; Menezes Martins, Bruno Novaes [UNESP]; Leal, Ygor Henrique; Barros Junior, Aurelio PaesMade available in DSpace on 2019-10-04T12:36:50Z (GMT). No. of bitstreams: 0 Previous issue date: 2019-01-01. Added 1 bitstream(s) on 2019-10-09T18:34:02Z : No. of bitstreams: 1 S1983-21252019000100027.pdf: 1801378 bytes, checksum: e4e0e3c86fe1a7797fe90c24973508bf (MD5); Vegetable production is an impactful activity, characterized by intensive land use, high input demand, and it requires strategic management ad...
Productivity of lettuce cultivars as a function of the harvest age in semiarid ...
Souza, Ênio Gomes Flôr; Ribeiro, Rayanne Maria Paula; Pereira, Luiz Aurélio Freitas; Silva Neto, José Sisenando de Sênna; Barros Júnior, Aurélio PaesIn the Brazilian Northeast, lettuce cultivation is restricted to small areas, with the use of cultivars not adapted to the climatic conditions of the region, promoting early flowering and low productivity. Therefore, the objective of the research was to evaluate the agronomic responses of lettuce cultivars according to the age of harvest when cultivated in semi-arid conditions. The experiment was conducted in f...
Agronomic performance of carrot fertilized with roostertree [Calotropis procera...
Souza, Almir Rogério Evangelista de; Souza, Gomes Flôr; Santos, Manoel Galdino dos; Cerqueira Júnior, Euvaldo Pereira de; França, Rafaela FélixBecause vegetables have a fast production cycle, they require fertilization in quantities and at ideal times to obtain maximum productivity, and green manure is an alternative practice to the use of mineral fertilizers. This study was conducted to evaluate the effects of different amounts of roostertree [Calotropis procera (Ait.) R. Br.] biomass and its incorporation times in two growing seasons, in the agronom...
Rentabilidade do rabanete adubado com flor-de-seda em duas épocas de cultivo no...
Silva, Antonia Francilene Alves da; Souza, Enio Gomes Flôr; Santos, Manoel Galdino dos; Barros Júnior, Aurélio Paes; Bezerra Neto, FranciscoPara obter produtos de qualidade e em quantidade ao longo do ano, é necessário o planejamento do plantio, observando a produtividade esperada, o preço praticado no comércio e os custos relativos aos fatores de produção, como despesas com mão de obra e aquisição de fertilizantes, os quais ditam o sucesso do investimento. O objetivo deste trabalho foi avaliar a rentabilidade do rabanete cv. Crimson Gigante adubad...