7 documents found, page 1 of 1
QUALIDADE PÓS-COLHEITA DE DIFERENTES ACESSOS DE INHAMES COLETADOS NOS ESTADOS D...
Menezes, Adielma Maria de; Santos, Saniel Carlos dos; Santos Neto, João Paixão dos; Noronha, Marissônia de Araujo; Costa, João Gomes daThe postharvest quality of different yam accessions was evaluated. The vegetable materials were collected in Alagoas and Sergipe, later the centesimal composition, physicochemical, and content of mineral elements were analyzed. After statistical analysis of the data, the accessions Dioscorea cayenensis and Dioscorea alata showed higher protein quality than the other genetic materials. Still, Dioscorea alata sho...
Dormancy breaking methods in Umbuzeiro seeds (Spondias tuberosa Arr. Cam.) (Ana...
Leite, Rafael de Almeida; Barbosa, João Pedro Ferreira; Santos, Daniel de Souza; Barros, Rubens Pessoa de; Araújo, Alverlan da SilvaThe umbu tree (Spondias tuberosa Arr. Cam.) (Anacardiaceae) is an exclusively Brazilian species and endemic to the Caatinga Biome, being considered a plant of great socioeconomic importance for the local population. This plant has been suffering a lot of human influence through extractivism, causing its population to wear out. The study aimed to test methods used to break seed dormancy as an alternative to over...
Phytochemical investigation, phenol content and allelopathic potential of Croto...
Silva, Chryslane Barbosa da; Silva, Kelly Barbosa da; Santana, Antônio Euzébio Goulart; Santos, Aldenir Feitosa dos; Costa, João Gomes daABSTRACT: The present study involves phytochemical investigation, phenol content and allelopathic potential of Croton heliotropiifolius Kunth extract in the germination of Digitaria insularis (L.) Fedde. with extracts ethanolic and aqueous of C. heliotropiifolius leaf; was performed prospected secondary metabolites and Ultraviolet–visible (UV–visible) spectrophotometry tests for total phenols ...
Considerations on experimental planning and suitability of using statistical te...
Cavalcante, Marcelo; Costa, João Gomes daIn scientific research, planning and carrying out experiments are common practices in Agricultural Sciences. Although the experimental methods are widely known, it is clear that their assumptions are often not verified, reflecting the low precision and quality of the results. This research aims to: 1) discuss basic concepts of experimental statistics; 2) present the main statistical models and methods used in A...
Volatile organic compounds induced by simulated herbivory in sugarcane plants
Oliveira, Demetrios José Albuquerque; Ribeiro, Thyago Fernado Lisboa; Ribeiro Junior, Karlos Antônio Lisboa; Costa, João Gomes daSugarcane is a crop of great importance for agriculture and the Brazilian economy. This crop can be attacked by several pests that cause severe economic damage in terms of productivity. This work aimed to investigate the volatile compounds released by sugarcane plants submitted to two treatments of simulated herbivory. In the Single Simulated Herbivory (SSH), the plant is mechanically damaged only once, however...
UTILIZAÇÃO DE “ALGAS ARRIBADAS” COMO ALTERNATIVA PARA ADUBAÇÃO ORGÂNICA EM CULT...
Nova, Larissa Lourenço Moura Vila; Costa, Manoel Messias da Silva; Costa, João Gomes da; Amorim, Everton Cristiano da Silva; Guedes, Élica Amara CecíliaAs algas constituem um grupo extremamente diversificado de organismos que habita predominantemente os ambientes aquáticos, bem como todos os meios com graus intermediários de salinidade, inclusive o hipersalino. Algumas espécies podem eventualmente ser arrancadas de seus substratos, devido às marés indo pararem nas praias, constituindo o que se denominam algas arribadas. Existe uma grande quantidade de algas "A...
Yield and genetic potential of sweet potato clones - DOI: 10.4025/actasciagron....
Cavalcante, Marcelo; Ferreira, Paulo Vanderlei; Paixão, Stênio Lopes; Costa, João Gomes da; Pereira, Rodrigo Gomes; Madalena, José AntônioWith the objective to evaluate the yield and genetic potential of sweet potato clones, aiming at the selection of more productive genetic material, with traits that facilitate tillage, an experiment was conducted in 2007, composed of nine clones and two local varieties, in a completely randomized block design with three replications. Six traits of the shoot and four traits of the storage roots were evaluated. C...