Bacharelado em Agronomia (UAST)
URI permanente desta comunidadehttps://arandu.ufrpe.br/handle/123456789/2927
Siglas das Coleções:
APP - Artigo Publicado em Periódico
TAE - Trabalho Apresentado em Evento
TCC - Trabalho de Conclusão de Curso
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6 resultados
Resultados da Pesquisa
Item Produtividade, estresse e proteção oxidativa em feijão-caupi inoculado com estirpes de Alfa e Beta-Rizóbios(2022-05-27) Martim, Mayara Bernardo Tavares; Simões, Adriano do Nascimento; http://lattes.cnpq.br/1895049701533568; http://lattes.cnpq.br/1861408621908918Item Testes de vigor de resistência a estresse e bioquímicos em sementes de feijão caupi – uma revisão(2021-12-10) Araújo, Anna Beatriz Nogueira de; Silva, Monalisa Alves Diniz da; http://lattes.cnpq.br/0446410743186066; http://lattes.cnpq.br/1953643340073473Vigna unguiculata L. or cowpea beans, as it is commonly known, is one the main food sources in a lot of countries, stand out Brazil. For implementation of crops it is necessary to use seeds with high physiological quality, which understands the germination and the vigor. Between the tests of stress the best known are accelerated aging, controlled deterioration, cold test and low temperature germination. Biochemical tests stand out the electrical conductivity, potassium and tetrazolium leaching, which assess the condition of the seed. Therefore, the vigor tests make it possible to classify seed lots at different vigor levels. Represent a great help for seed producing companies, who need to make storage decisions, marketing and disposal; Even if the seeds meet the minimum germination percentage required by the Ministry of Agriculture livestock and supply to be marketed. The present work aimed to carry out a literature review on scientific articles published in the period from 2011 to 2021, regarding vigor tests, accelerated aging, electrical conductivity and tetrazolium in cowpea seeds. Graphs were drawn up regarding expressions and keywords: tetrazolium in cowpea seeds; electrical conductivity in cowpea seeds and accelerated aging in cowpea seeds; electrical conductivity in Vigna unguiculata; accelerated aging in Vigna unguiculata; tetrazolium in Vigna unguiculata and cowpea in seed vigor tests, considering the database of Google Academic , Web of Science and Scielo, year of publication and languages ( Portuguese, English and Spanish). The database that presented the most published articles was Google Academic, as it is a simple and easily accessible platform, different from platforms Scielo and Web of Science. On the occasion of the evaluation of cowpea seeds will be subjected to accelerated ageing vigor tests, electrical conductivity and the tetrazolium, one should be aware that there are several factors that influence the results; genotype and aspects of the methodology itself, but also the intrinsic seed conditions and pre- and post-harvest management.Item Avaliação da aplicação de molibdênio e nitrogênio no crescimento do feijão-caupi irrigado com água salina em ambiente semiárido(2021-12-06) Maciel, Lucas Henrique; Oliveira, Alexandre Campelo de; http://lattes.cnpq.br/8164135937542569; http://lattes.cnpq.br/3063695672625738Cowpea (Vigna unguiculata (L.) Walp.) has its center of origin located in the African continent, being introduced in Brazil around the 16th century and is still recognized today as one of the most consumed legumes in the North and Northeast regions. Its cultivation is expressive by irrigating farmers, however, the water used is of poor quality and extremely saline. This salinity can affect the absorption of nitrogen, an important macronutrient for the growth and development of the legume and associating with this condition the deficiency of molybdenum, an important micronutrient in nitrogen metabolism, which together can be an important nutritional management strategy to provide the expression of maximum productive potential of cowpea. The objective of this work was to evaluate the behavior of cowpea cv. IPA 207, when subjected to increasing doses of molybdenum associated with nitrogen doses, aiming to establish the treatment that would enable the best increment of the studied variables. The experimental design used was in randomized blocks, generating a factorial scheme, 5x2x4, totaling 40 experimental units, with the following treatments: 5 doses of molybdenum (0, 40, 80, 120 and 160 g/ha) and two doses of nitrogen ( 0, 80 kg/ha) and 4 repetitions. The molybdenum source used was sodium molybdate, and urea was nitrogen. Treatments were applied 23 days after seedling emergence. The variables studied were: plant height (cm), stem diameter (mm), number of pods per plant, number of grains per pod, mass of one hundred grains (g), fresh and dry mass of shoot (g), fresh and dry root mass (g) and the activity of the nitrate reductase enzyme. The data obtained were submitted to analysis of variance and then to polynomial regression analysis. The increasing doses of molybdenum applied via the leaves in association with nitrogen fertilization positively influenced the activity of the nitrate reductase enzyme, as well as the accumulation of fresh and dry matter of cowpea, in addition to the significant increase in the variables number of grains per pod and number of pods per plant.Item Respostas agronômicas do feijão caupi (Vigna unguiculata (L.) Walp.) sobre diferentes proporções: solo e esterco suíno em dois sistemas de cultivo(2019-07-17) Jesus, Maria da Saúde Santos de; Simplício, Josimar Bento; http://lattes.cnpq.br/1876691945804390Cowpea is a food crop grown in several Brazilian regions, rich in protein is one of the most important legumes and even in soils of low fertility, regions of high temperatures and conditions of water stress produces well. The area cultivated with cowpea in Brazil for the 2017/2018 harvest was approximately 1,440,000 ha, with the Northeast region having the largest planting area, 404,20 thousand ha. Given its great importance for the Northeast region and considering a crop that presents rapid expansion throughout Brazil, it is also considered as one more option for export culture. The creation of confined animals grows every year and this growth favors a considerable volume of waste that if thrown into the environment, can cause damage to this environment. In this sense, the present research proposed to evaluate in a 2x3x2 factorial scheme the behavior of two Creole varieties of cowpea, LA2017 and CB2017, originating from communities of rural producers in the municipality of Santa Cruz da Baixa Verde - PE, The authors present three proportions of pork soil and manure, in two culture conditions, with and without dead cover, in experimental design of casualized blocks, in the experimental area of the Academic Unit of Serra Talhada (UAST), in the Sertão do Pajeú micro-region. By means of the results observed, it was concluded that LA2017 presented superior behavior in the cultivation system with dead cover of 35% for the weight of pods per plant. While the CB2017 presented more significant performance in the cultivation system without dead cover. The proportion with 100% pig manure increased by up to 27% the weight of seeds when compared to the control, proportion 100% soil. Overall, the presence of manure increased the development of cowpea plants.Item Desenvolvimento inicial do feijão-caupi em função de crescentes doses de molibdênio(2019) Sousa, José Victor Lessa de; Oliveira, Alexandre Campelo de; http://lattes.cnpq.br/8164135937542569; http://lattes.cnpq.br/7406808303559442The cultivation of cowpea began with the advance of colonization of the country, being introduced in the state of Bahia and spread by routes in the interior of the Northeast, becoming highly adapted to edaphoclimatic conditions and characterizing as the main source of protein of the sertanejo until nowadays. Even when it is a legume, the bean can not supply its nitrogen demand only with what is produced by biological fixation, and associated with this condition, the deficiency of molybdenum, an important element in nitrogen metabolism can be an important strategy of nitrogen. nutritional management that provide the expression of their maximum productive potential. The objective of this work was to evaluate the behavior of cowpea cv. Paulistinha, when subjected to increasing doses of molybdenum associated with nitrogen doses, seeking to determine the treatment that provided the best development for the studied variables. The experimental design was in blocks, in a 5x2x3 factorial arrangement, with the following treatments: 5 doses of molybdenum (0, 40, 80, 120 and 160 g / ha), and 2 doses of nitrogen (0, 80 kg / ha). , with 3 repetitions, totaling 30 experimental units. The source of molybdenum used was sodium molybdate, and nitrogen, urea. The treatments were applied 20 days after seedling emergence. The studied variables were: plant height (cm), stem diameter (mm), leaf area (cm²) and fresh matter mass (g). The data were submitted to variance analysis and later to polynomial regression analysis. Increasing doses of molybdenum applied via leaf provided higher plant height, stem diameter and leaf area in cowpea. The variable fresh matter mass was not influenced by the applied treatments.Item Avaliação de extratos de mamona Ricinus communis e do coité Crescentia cujete L. no controle de Aphis craccivora Koch (Hemiptera: Aphididae) em feijão caupi(2019) Ferreira, Vandeilson Bezerra; Evangelista Júnior, Walter Santos; Nascimento, Antônio Henrique Cardoso do; http://lattes.cnpq.br/5216997634308364; http://lattes.cnpq.br/6728342264331935; http://lattes.cnpq.br/2799857312943263Controlling agricultural pests is a practice that has been undergoing innovations constantly. The use of plant extracts appears as an alternative of pest control and is recommended mainly in family agriculture, and in fields of production mainly in organic agriculture, being a low cost product, easy to obtain and high effectiveness in pest control. The extracts of the plants of MamoneiraRicinuscommunisand CoitéCrescentiacujeteL. are promising in the natural control of pests, as they have toxic substances such as ricin, phenolic compounds and flavonoids, respectively. The objective of this work was to evaluate the effect of the extracts of these plants on the black aphid mortality of the common bean Aphis craccivora(Hemiptera: Aphididae). Mamona and Coité extracts caused a high mortality on black bean aphid with rates of 74.69% and 70.23%, respectively. Comparing the black aphid mortality in the different extracts per day after the application of the extracts, it was verified that the Mamona extract had a higher mortality rate (84.86%) on the first day of evaluation and the second day had a coefficient of 81.3%. However, there was no difference between the plant extracts during the five days of evaluation and they differed from the control throughout the evaluation period, which reinforces the efficiency of the use of these extracts in the control of this pest, as well as the necessity of use of control methods. It is concluded that the plant extracts of Mamona and Coité are efficient in controlling the mortality of black aphid A. craccivoraand contribute to the management of this pest in family agriculture, organic and agroecologicalcrops.