Bacharelado em Agronomia (UAST)

URI permanente desta comunidadehttps://arandu.ufrpe.br/handle/123456789/2927

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Condições operacionais de estruturas hídricas destinadas ao armazenamento de água no Vale do Rio Pajeú
(2018) Rocha, Ana Karlla Penna; Barros Júnior, Genival; http://lattes.cnpq.br/4379675294862211; http://lattes.cnpq.br/9119539861018560
One of the problems related to water resources in Brazil, beyond the unconscious use of the water and overused by population, it’s your irregular geographical distribuition, so that only 3% of these resources are located in the Norteast, region that owns 27,3% of the population of the country and is characterized by high annual evaporations and low precipitation rates, which are even smaller in the Semiaridregion.In this context, one of the most important rivers of the state of Pernambuco and that constitutes the greater hydrographic basin is the Pajeú, which is born in the city of Brejinho -PE and flowsinto the Itaparica dam, with a river mouth located between the cities of Floresta and Itacuruba. Because it’s an intermittent river, one of the main initiatives of the public power to increase the water supply over time has been and continues to be the construction of large hydraulic works such as dams, whose purpose it’s to store water for supplying the cities and for the cultivation of land and animal breeding. Along the Pajeú River there are 30 reservoirs with a capacity of more than 1 million m³ of water, and the Serrinha dam has the highest storage potential with 311 million m³. Due to the lack of information on the current state of these water structures, the present work proposed to raise, between august and december of the 2018, the state of conservation and the operating dynamics of sixof the main water bodies of the Pajeú River and its tributaries.Therefore were done surveys in locoof the structural and operational aspectsof this dams, as well as approaches were taken with the managers of eachone.It was found that most of the structures shows a worrying derelictionscenario, with Brotas and Jazigo dams being the most serious cases and Saco I, which has the best condition among all of them, however all can be classified as high associated potential harm and high category therefore, prone to disruption if they remain without the short-term contemplation of a preventive management and maintenance plan.
Análise de satisfação do consumidor da feira agroecológica (FAST) e da feira livre de Serra Talhada
(2018) Souza, Cintya Mikaelly Pereira Gaia; Rocha Júnior, Cláudio Jorge Gomes da; http://lattes.cnpq.br/5767471085192721; http://lattes.cnpq.br/3531454440394612
The human being seeks to always choose the best product or service in the course of life. Therefore, only making a quality item available is no longer sufficient. Consumers want to have their expectations surpassed. The present work is about a research whose main objective was to measure the degree of consumer satisfaction of the AgroecologicalFair and the Free Fair of the city of Serra Talhada, in order to identify criteria that lead to satisfaction, to describe their expectations according to with the reality evaluating from the point of view of the same the quality of the products. Data collection was done through the application of forms and the Net Promoter Score to analyze and quantify customer satisfaction. Among all the criteria evaluated the worst variable analyzed by the consumers of the Agroecological Fair was the price and this result is due to not all information from the buyers, and the Free Fair was the hygiene of the place that is due to the size of the fair and the lack of awareness of those who attend and those who try to maintain the order of the place. Through this study the level of consumer satisfaction was obtained on the products of the fairs analyzed in order to make a significant contribution to the improvement of the infrastructure and the socioeconomic conditions of the farmers and merchants and to help in the conquest of new consumers.
Evapotranspiração e coeficiente de cultura da palma forrageira: análise comparativa de cultivos sem e com o uso de cobertura morta
(2018) Alves, Hygor Kristoph Muniz Nunes; Silva, Thieres George Freire da; Jardim, Alexandre Maniçoba da Rosa Ferraz; http://lattes.cnpq.br/9981205244282499; http://lattes.cnpq.br/0213450385240546; http://lattes.cnpq.br/4208743875293068
Due to long periods of drought and the effects of climatic changes in the Brazilian semi-arid region, it is of great importance to use management that will circumvent these impacts in the rural environment. The use of plants tolerant to water deficit and the use of supplementary irrigation may be an alternative, where for good irrigation water management practice it is necessary to know the water requirement of the crop, evapotranspiration and the crop coefficient for conditions. Soil water balance is a technique that helps in the measurement of these components. Thus, the objective of this study is to quantify the evapotranspiration and the forage cactus cultivation coefficient in crops without and with the use of mulch in the semi-arid region of Pernambuco. The experiment was carried out at the Experimental Station Lauro Ramos Bezerra, belonging to the Agronomic Institute of Pernambuco - IPA, municipality of Serra Talhada-PE, from November 2014 to November 2015. The clone used was Opuntiastricta, submitted to four slides of irrigation (25, 50, 75 and 100%) based on reference evapotranspiration plus rainfed condition, and two cropping systems (without and with mulch). The experimental design was arranged in randomized blocks, in the factorial arrangement 5x2, in four replications, where the slices represented the plots, and the cropping systems, the subplots. Over time the soil moisture was monitored. The water balance method was applied in 14-day intervals, totalizing 21 periods, which was composed of evapotranspiration (ET), precipitation (P), irrigation (I), runoff (R), vertical flow of water in the soil (Q) and variation of soil water storage (Δh). The components of the water balance were integrated and compared between the treatments within each period, applying them to the tests of normality and homoscedasticity, and once significant, the analysis of variance, if necessary, the Tukey test (5%). The irrigation events added to precipitation during the 21 periods was 764.76 mm, with the months between August and November 2015 presenting the highest values of ETo (6.18 mm). There was no difference in the components of the vertical flow of water in the soil, capillary ascension and deep drainage (CA and DP, in this order) when compared to the systems of cultivation without and with mulch over the soil. When the crop evapotranspiration (ETc) was evaluated, a significant difference was observed only for periods 10, 18, 20 and 21. The ETc accumulated for both systems was -782.01 and -771.19 (SC and CC, in this order). The highest mean ETc value corresponded to periods 6 (10-Apr-2015) for the two SC and CC systems, with averages of (-5.06 and -4.75, respectively). For the crop coefficient (kc) only the periods 10,18, 20 and 21 were significant (p <0.05), the mean values of kc for the two systems were 0.57 and 0.56 (SC and CC, in this order). The use of mulching improved the conditions of forage cactus cultivation, although it did not present a difference in water consumption, providing close kc values.
Crescimento vegetativo do gladíolo Amsterdam em diferentes condições ambientais
(2018) Xavier, Tâmela Larissa Silva; Silva, Luzia Ferreira da; http://lattes.cnpq.br/6320449537171549; http://lattes.cnpq.br/8832131021527249
The gladiolus stands out among the cut flowers cultivated in Brazil, as soon as it presents ease of cultivation and rapid financial return. However, its growth and productivity can be altered as a result of changes in the meteorological elements. This study investigated the vegetative growth of the gladiolus submitted to different shading environments in Serra Talhada -PE. The experiment was conducted at the Academic Unit of Serra Talhada \UFRPE, from June 28 to September 1, in a completely randomized design in three cultivation environments, full sun (control), under black shading 70% (sombrite) and 70% thermo-reflector(aluminet). The Amsterdam variety (Gladiolus x hortullanus L), cultivated in polyethylene containers with a volume of nine liters, was filledwith soil, sand and vermiculite (2: 1: 1) and three bulbs per container. Biometric parameters were evaluated: plant height, number of leaves, neck diameter, and biomass: leaf dry mass, dry mass of the bulb and dry mass of the root. In addition, meteorological elements were monitored: air temperature, relative air humidity, radiation and wind speed. The highest values in relation to plant height occurred in the treatment with 70% shade. There was no influence of the use of the shading screens for the number of leaves, neck diameter and root dry mass. The use of the thermo -reflector provided a greater accumulation of dry mass of the leaves at the end of the experimental period and favored the process of releasing the nutritional demand of the bulbs to theaerial part, more efficiently than the other growing environments. The screens provided reduced temperature, increased relative humidity, marked reduction in global solar radiation, and reduced wind speed. RFA values were higher in the thermo-reflector environment when compared to the sombrite environment.
Restauração florestal de ambientes degradados do bioma Caatinga por meio de banco de sementes do solo
(2018) Saraiva, Maria Monique Tavares; Silva, Luzia Ferreira da; http://lattes.cnpq.br/6320449537171549; http://lattes.cnpq.br/7157708100841122
This study analyzed the occurrence of restoration in two areas of the Federal Rural University of Pernambuco, Serra TalhadaAcademic Unit(UFRPE/UAST) with seed Bank of the State Park Mata da Pimenteira(PEMP) by means of Nucleadoras techniques and evaluated its potential when subjected to Controlled conditions. The work is organized in two chapters. The first refers to a study developed in the field in two degraded areas of UFRPE/UAST and were evaluated the seed banks of burlap and soil and burlap of two environments of the French, in the years 2016/2017 and 2017/2018, respectively. In the first year, twenty samples of burlap were collected at a depth of 5 cm and area of 1m ², constituted ten in each area of natural environment (Serra Branca and Pimenteira) of the French and transplanted to ten parcels in two areas. In the second year, five samples of more burlap soil were collected in a 10 cm layer, distributed to ten experimental units in each degraded area. The design used in both experiments was in random blocks, in the 2 x 2 factorial model with two seed bank environments and two degraded areas with five repetitions each. They were obtained in the experiment of the burlap 49 individuals, distributed in 12 families and 25 species and, in the soil and burlap experiment, 144 individuals distributed in 37 species and 18 families, with nine species in common. There was predominance of herbaceous and greater floristic diversity in the material coming from the area of natural environment two, of the park. The second chapter consisted in the evaluation of the seed bank contained in four points of the PEMP, two in each area of natural environment (Serra Branca and Pimenteira), subjected to irrigation and conditioning in two different environments of luminosity (shading and Full sun), it was also carried out tests to distinguish the soils of the studied points, by means of tests of infiltration and determination of the density and porosity. It was verified 114 individuals distributed in 31 species and 21 botanical families, with an emergency prevalence in the portions of the material from the natural environment Zone two and under shading conditions. It was concluded that the more soiled burlap transposition presents greater viability in ecological restoration, with better results when associated with soil conservation management techniques; And under controlled conditions the seed bank of the point near the water course in the Pimenteirapresented better potential restorative, optimized by shading of 70%.
Extratos da algarobeira como alternativa de controle do pulgão preto do feijoeiro Aphis craccivora
(2018) Vieira, Domingos Sávio Marques de Menezes; Evangelista Júnior, Walter Santos; http://lattes.cnpq.br/6728342264331935; http://lattes.cnpq.br/7384301568742851
The extracts of plants are recommended in family agriculture, characterized by small and medium producers, mainly related to the organic production. One way of obtaining compounds or plant substances is through the isolation of active principles or specific chemical group with insecticidal action, among them the alkaloids. The Prosopis juliflora algarobeira presents several substances with insecticidal and antifungal properties. Thus, the objective of this research was to evaluate the insecticidal effect of the alcoholic and aqueous extracts of algarobeira leaves on the black aphid of the common bean Aphis craccivora (Hemiptera: Aphididae). The experiment was carried out in the UAST experimental area. Statistical analyzes were performed by analysis of variance, using the Tukey test with significance level at 5% probability, using the Sisvar 5.6 (2011) computational package. It was observed that the dosages of FAT (100, 50, 25 and 10 mL / L) did not present significant toxicity, where there was no mortality of A. craccivora. Using the aqueous extract of the algaroba, a mortality ranging from 5.94% and 30.12% of the black aphid was observed. It is concluded that the algaroba extract presented low efficiency on the mortality of A. craccivora.
Desenvolvimento do sorgo forrageiro (Sorghum bicolor(L.) Moench) submetido a diferentes dosagens de adubação com manipueira
(2018) Cruz, Aloísio dos Santos; Simplício, Josimar Bento; Vieira, Maurício Luiz de Mello; http://lattes.cnpq.br/4204641633941814; http://lattes.cnpq.br/1876691945804390
In the Semi-arid region of the Northeast, goat breeding and sheep farming are relevant activities in socioeconomic aspects for rural families. However, the inadequate management of chemical fertilization in this region has added serious environmental problems, and consequently, forage production has been hampered by misapplication of mineral fertilization in production systems. Thus, the objective of this research was to evaluate the response of two genotypes of forage sorghum submitted to different doses of manipueira.The experiment was carried out in the Statistical Unit of Serra Talhada, installed in randomized blocks, in a 4x2x4 factorial scheme, composed of four blocks of two sorghum cultivars and four doses of manipueira (0.0, 12.0, 24.0 and 48, 0 m3ha-1), totaling 32 experimental units. The evaluated characteristics were stem diameter (DC); plant height (AP); number of live leaves (NFV); number of dead leaves (NFM); weight of the green mass (PMV) and weight of the dry mass (PMS). In the interactions obtained by the ANOVA of the data, it can be observed that, of the growth parameters evaluated were significantly altered by the use of manipueira doses, for these variables we observed a quadratic behavior as a function of plant height (AP), the evaluation period (mL / pot) for the two sorghum cultivars IPA 2502 and BRS Ponta Negra, at the height of the IPA 2502 plant the dose of 168.34 mL / pot provided a maximum height of 67cm at 62.51 days , and for BRS Ponta Negra it reached a maximum height of 85 cm, with a dosage of 104.76 mL / pot at 68.65 days, in Figure 2 (a) and (b). For the variable diameter of the stem (DC) Figures 3 (a)and (b), the dose of 168.06 mL / vessel provided the IPA 2502 maximum diameter of 11.82 mm at 49 days, while for the BRS Tip The dose of 101.71 mL / pot provided a maximum diameter of 13.69 mm at 64.29 days. There was no influence of the different dosagesof manipulation for the number of live and dead leaves, total green mass and total dry mass of the leaves. cultivars IPA 2502 and BRS Ponta Negra. The use of manipueira in the conditions established in this research did not promote increases in the production of sorghum forage, however, further evaluations are necessary with new studies on the influence of this fertilizer, since the plants were conditioned to water stress.
Acompanhamento agropecuário na fazenda sítio novo, município de Floresta – PE
(2019) Borja, Caique Roberto Siqueira; Leite, Maurício Luiz de Mello Vieira; http://lattes.cnpq.br/4204641633941814; http://lattes.cnpq.br/8114370310055532
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/7406808303559442
The 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.
Implantação e restauração de área agrícola na UFRPE Unidade Acadêmica de Serra Talhada
(2019) Sá, Carlos André de Souza; Nascimento, Antônio Henrique Cardoso do; http://lattes.cnpq.br/5216997634308364; http://lattes.cnpq.br/3285445362250128
Produção de tomate submetido a diferentes lâminas de irrigação em canteiros econômicos com mulching
(2019) Cruz, Rivonaldo Batista da; Nascimento, Antônio Henrique Cardoso do; http://lattes.cnpq.br/5216997634308364; http://lattes.cnpq.br/1572920750924175
The growing demand for water resources due to the difficulty of access, capture and storage, quantity and quality, minimum volume required for food production, especially in the semiarid region, has an estimate of research and practice of practices that aim to improve or use the techniques used to use low quality water as an alternative to supply the water demand of small irrigators. The tomato crop is very demanding in water, its water demand requires an irrigation practice to obtain an optimum dry crop production in the season. Through the technology of economic channels, it is possible to save water in tomato production through subsurface irrigation. The objective is to evaluate the growth and production of tomato under different irrigation depths in the economic channels with mulching, applying or increasing in family farming. The experiment was conducted in the factorial scheme (5 x 2) x 4, with subdivided plots, in the DBC, without which was the effect of 5 irrigation depths (50%, 75%, 100%, 125% and 150% of ETc) on two tomato cultivars: RIO GRANDE (Lycopersicon lycopersicum) and CALINE IPA-7 (Lycopersicones culentum Mill.), arranged in four replications. The EVALUATED characteristics were: plant diameter (DC); Plant height (H); number of leaves (NF); lateral branches (NR); number of floral branches (NRFL); weight per fruit (P / F); average fruit diameter (DIA); volume (VOL); density (DS); production (PROD) and productivity (PRODT) and water use efficiency. An IPA7 cultivar does not differ statistically in terms of water use, showing that it is possible to produce tomatoes with low water consumption and 75% undifferentiated production and use when compared to a standard that obtains, therefore, a saving of 25% of (100 % Etc). According to these results, the applied technology of economic beds with mulching is ideal for saving water in food production aiming at water use efficiency in family farming.
Rendimento produtivo do rabanete cultivado sob diferentes lâminas de irrigação e qualidades de adubação
(2019) Sá, Carlos André de Souza; Nascimento, Antônio Henrique Cardoso do; http://lattes.cnpq.br/5216997634308364; http://lattes.cnpq.br/3285445362250128
Water stress along the radish crop cycle may interfere with its development, causing changes in morphology, interfering with the biochemical reactions of the plant. The objective of this work was to evaluate the productive yield of radish (Raphanus sativus L.) cultivated under different irrigation depths and fertilization qualities, from September to December 2019, in the Serra Talhada Academic Unit - UFRPE/UAST. The design adopted was in a factorial scheme (5 x 3) x 4 consisting of five irrigation depths (50, 75, 100, 125 and 150% of The ETc), three sources of fertilization (two organic sources and one mineral source as control treatment) and four replications, in randomized blocks with arrangement of subdivided plots. Campaigns were carried out to obtain biometric and biomass data. Of the biometric parameters, the following parameters were analyzed: shoot height, number of leaves, plant weight, commercial diameter, root system length and root weight. Biomass was performed to determine the efficiency of water use. The irrigation depth of 113.2% of the ETc provided higher production of the commercial part of the radish. It was found that the efficiency of water use is maximized with the use of smaller irrigation depths. It is feasible to partially or fully replace mineral fertilization with organic fertilization for the production of radish.
Acompanhamento das atividades de assistência técnica e extensão rural no IPA - Serra Talhada
(2019) Oliveira, Cibely Ferreira de; Simplício, Josimar Bento; http://lattes.cnpq.br/1876691945804390; http://lattes.cnpq.br/2451690212011839
Desempenho agronômico de clones de palma forrageira em consórcio com pornunça
(2019) Moura, Edvaldo Alves de; Leite, Maurício Luiz de Mello Vieira; http://lattes.cnpq.br/4204641633941814; http://lattes.cnpq.br/2567485677684755
Verificação dos tratos culturais para a produção de Macaxeira VAR. Recife e o retorno financeiro do investimento em campos de produção na Aldeia Lama, Cabrobó Pernambuco
(2019) Santos, Fernando Augusto Nascimento; Simplício, Josimar Bento; http://lattes.cnpq.br/1876691945804390; http://lattes.cnpq.br/0250060059047749
Macaxeira is one of the most cultivated crops in Brazil and in the world, it has characteristics that give it a good ease of management, being very resistant to the attack of pests and phytopathological agents. Also not very demanding in relation to the supply of water and high soil fertility rates, all these characteristics make this crop considered one of the most rustic agricultural crops cultivated for food purposes. Knowing how to manage an agricultural crop is not the only factor of importance for success in the agricultural market, another factor that should be taken into account by producers is the issue of production costs, because if there is an investment expected to be profit Satisfactory. The objective was to analyze the production costs and what management adopted in the production process of Macaxeira var. Recife, in Aldeia Lama, Cabrobó-PE. For this purpose, visits were made to the production fields where the stages of preparation, planting, management of infestants, management of insect pests, disease management, harvesting and marketing were carried out. A questionnaire was also applied to the producers, the questionnaire was applied individually, and thus it was possible to carry out a concrete survey of all the costs that had been made from soil till harvest. It is concluded that the cultivation of macaxeira (Manihot Esculenta Crantz var. Recife) in the Aldeia Lama community is a financially viable alternative because it provides good profit margin, even with low technological level of management, productions can be obtained Acceptable. Another important fact is production costs will always vary according to several aspects such as: amount of labor used for planting, infestant plants present on site, amount of labor used in the harvest.
Distúrbios fisiológicos associados à sensibilidade ao estresse hídrico em plantas de arroz
(2019) Patriota, Maiany Alves; Silva, Sergio Luiz Ferreira da; http://lattes.cnpq.br/0173411400092352; http://lattes.cnpq.br/4876916391191452
Rice (Oryza sativa L.) is one of the most produced cereals in the world, together with maize and wheat, and when exposed to various adverse conditions, with water deficit, have its productivity compromised. Therefore, the present work aimed to characterize mechanisms indicating damage and oxidative protection that may be present in rice varieties São Francisco, BRS Sertaneja, BRS Primavera and BRS Pepita, when subjected to water deficit conditions. The experiment under greenhouse conditions is divided into three stages. The seeds of the varieties (BRS Sertaneja, BRS Primavera, BRS Pepita and São Francisco in the first phase and BRS Sertaneja and São Francisco varieties in the second and third phase) were disinfected with 5% sodium hypochlorite and sown in four liter pots. . A few days after seedling emergence, nutrient solution applications and biometric analyzes were started. After a certain time, the analysis of gas exchange, physiological and biochemical, as well as grain yield were made. The experiment was conducted in IHD in all stages, except for the first one, arranged in 2 x 2 factorial treatments, consisting of two water treatments (control treatment and water stress). The data of the analyzed variables were submitted to the F test at 0.05 probability and the means compared by the Tukey test at the same significance level. Different behaviors were obtained under optimal conditions due to the different genotypes showing that BRS Sertaneja and São Francisco are more efficient in the use of resources than the others under optimal conditions. In response to water stress, we obtained differences between varieties and between treatments in the same variety, since each one presents degree of sensitivity and response to external stimuli, so that the BRS Sertaneja variety was more resistant to drought and as a better option for use in semiarid region.
Manejo e caracterização de acessos e variedades de videira nas condições do Vale do São Francisco
(2019) Sobral, Yuri Rafael Alves; Ataíde, Elma Machado; http://lattes.cnpq.br/2422663252620574; http://lattes.cnpq.br/2741550066670500
Fracionamento físico do carbono no solo em função da irrigação e adubação nitrogenada
(2019) Espindola, Vitor Augusto Silva; Oliveira, Alexandre Campelo de; http://lattes.cnpq.br/8164135937542569; http://lattes.cnpq.br/4334208597286391
Variations in the carbon stock are not individual risk factors, these are natural and anthropic, as the natural islands are associated as characteristics of the region, such as climate and temperature of the region, the characteristics of textures, soil C concentrations. The anthropological factor is related to the performance standards of a strategy of changing characteristics of a business that is not before, such as the process of doing its initial business, the struggle for machines and leaching through an irrigation action. Such classes can be occasioned in reducing C concentrations in soil as a problem of soil quality, since this is a resource as a non-renewable resource. Because of this, a number of studies are focused on measuring stock concentrations through practical actions in a way that can lead to loss of inventory. From the total zero hours, from the total hours, from the zero. in the semi-arid region of Pernambuco. The experiment was conducted at the Serra Talhada Academic Unit (UAST) under field conditions, with a randomized block design, evaluation of forage sorghum and millet in consecutive cycles, applied to 4 irrigation slides (28, 36, 44 and 52 %). and 4 levels of nitrogen fertilization (0, 100, 200, 300 kg ha-1). In terms of results, the analysis of the needs of all cycles was made during the first year, showing the potential of applying the local experimental impact in its dynamics. There is a relationship between the COAM and the nitrogen so that an increase of its bases by the provision of soil N alone in the first cycle. There is a reduction in COP concentrations as a first time when doing a man's action when he does not interfere in the other. So, a dynamics of C not having alone in contact with the fact of being under the effect of nitrogen fertilization and irrigation, does not offer significant effects of the interaction between the two on TOC, but rather the action of both managements isolated form. Studies on the higher depths may also be needed because of soil characteristics.
Doses e épocas de aplicação de cloreto de mepiquat em algodão colorido brs topázio
(2019) Sá, Guilherme Augusto dos Santos; Alves, Gibran da Silva; http://lattes.cnpq.br/7278351291260092; http://lattes.cnpq.br/4840879791678518
Colored cotton is a genetic material still little cultivated in Brazil, having advantages such as the color of the fiber, which remains until the final product, so it is not necessary to use chemicals to dye it and promoting textile production with less environmental impact. However, it is a material that, in general, has low fiber quality and low productivity. It is up to the research to work on the improvement of the characteristics of the referred genetic material and that consequently would stimulate the increase of its cultivation. The objective of this study was to evaluate the growth and development of BRS Topázio cotton as a function of the application of the mepiquat chloride growth regulator at different doses and times. The experiment was conducted in a greenhouse at the Federal Rural University of Pernambuco, Serra Talhada Academic Unit (UFRPE-UAST). A completely randomized design was used in a 5x2 factorial arrangement, with 3 replications, 5 doses of mepiquat chloride (0.0; 0.07; 0.14; 0.21; 0.28 L ha-1) were applied at two different times (30 and 60 days after the emergency). Plant height, internode length, stem diameter, leaf area, number of nodes, number of bolls, number of flowers, number of apples, insertion height of the first flower bud, insertion height of the first flower were studied. , cottonseed mass, fiber mass, stone mass, aerial fresh matter mass, aerial dry matter mass, root fresh mass, root dry matter mass, total fresh matter mass and total dry matter mass. For data analysis we used the statistical software Sisvar 5.6, in which the results were submitted to analysis of variance and regression analysis. The variables, plant height, leaf area, stem diameter, node number, internode length, number of flowers, apple number, number of bolls, shoot fresh matter, root fresh matter, total fresh matter, shoot dry matter, total dry matter, root dry matter, fiber production, stone production and stone cotton production, responded to the effects corresponding to different doses and application times. The variables insertion height of the first flower and the insertion height of the first flower bud were not significantly influenced by mepiquat chloride. BRS Topázio cotton presents higher sensitivity to mepiquat chloride when applied at 30 DAE;
Produção de amarílis em diferentes recipientes e sombreamento nas condições do Semiárido Pernambucano
(2019) Santos, Bruna Kaline de Lima; Silva, Luzia Ferreira da; http://lattes.cnpq.br/632044953717154; http://lattes.cnpq.br/8892618369396659
Amaryllis is a bulbous plant commonly sold in pots. Among the flowering plants it has evidence for its umbellated inflorescences consisting of two to twelve flowers positioned on a smooth and hollow green scape with large flowers. However, amaryllis is not cultivated commercially in the Northeast and studies are lacking to guide production, especially for small producers. Thus, the objective of this study was to evaluate the viability of commercial cultivation of amaryllis under Pernambuco semiarid conditions. The experiment was conducted at the Serra Talhada-UAST Academic Unit of the Federal Rural University of Pernambuco-UFRPE between June and August 2019. It consisted of a 4X2 bifactor, in which 4 levels of shading (0, 30, 50 and 70 were tested). %) and two types of recipient(1.10 and 3.6 liters). The vegetative parameters analyzed were: leaf length (cm), number of leaves, number of floral leaves, diameter of the floral leaves (cm), length of the floral leaves (cm) and the reproductive parameters were: days for flower opening, number of leaves. flowers, flower crosssectional diameter (cm) and flower longevity. Data were submitted to the mean and regression test in the R statistical program. The best development of leaf length was in the 70% shading mesh and in the 3,6 liter recipient. The length of the floral scape obtained better results in the 70% shading mesh and there was no difference between the recipient volumes. There was greater uniformity in the number of days in the 70% shading mesh, with floral opening within 32 days. For the diameter of the floral scape, the flower cross-sectional diameter, the number of flowers and the number of leaves there was no statistical difference between the analyzed factors. Therefore, the commercial cultivation of amaryllis bulbs of the Minerva variety is viable in Pernambuco semiarid conditions from June to August in 70% shading mesh and in the types of recipient.