TCC - Bacharelado em Agronomia (UAST)
URI permanente para esta coleçãohttps://arandu.ufrpe.br/handle/123456789/2928
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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.