RESUMO -O trabalho teve como objetivo avaliar o comportamento fenológico de cagaiteiras (Eugenia dysenterica DC.), nativas e cultivadas do cerrado de Goiás. As cagaiteiras cultivadas encontram-se implantadas na área experimental da Escola de Agronomia e Engenharia de Alimentos, da Universidade Federal de Goiás (EA/UFG), em Goiânia-GO, e a população nativa localizada no município de Senador Canedo-GO. Os dados climatológicos foram obtidos da Estação Evaporimétrica da EA/UFG. Foram estudadas as fenofases de folhação, floração e frutificação da cagaiteira no período de janeiro de 2004 a novembro de 2005. As cagaiteiras, nas duas condições (cultivadas e nativas), apresentaram o mesmo comportamento em relação às variáveis estudadas. Observou-se que a folhação das cagaiteiras ocorrem durante todo o ano e em intensidade no período de renovação das folhas, nos meses de setembro a outubro. Já o florescimento foi sincrônico e abundante. A frutificação foi menor em plantas mais novas, enquanto o desenvolvimento e a maturação dos frutos ocorrem entre 30 a 40 dias da antese das flores, coincidindo com o período chuvoso. As plantas mais velhas apresentam maior produção de cagaita nas duas épocas avaliadas. Termos para indexação: cagaita, frutífera, cerrado, Myrtaceae. CAGAITEIRA (Eugenia dysenterica DC.) PHENOLOGY IN GOIÁS STATEABSTRACT -The objective of this research was to accompany and to register the phenological behavior of the cagaiteira (Eugenia dysenterica DC.), relating the frequency of the phenophases in four E. dysenterica populations to the climate conditions of the studied period. Three of those populations are located at the Escola de Agronomia e Engenharia de Alimentos, Universidade Federal de Goiás (EA/UFG), in Goiânia, Goiás State (Brazil). A fourth population comprises native E. dysenterica plants, located in the municipality of Senador Canedo, Goiás State. Climatological data were obtained from the first class station at EA/UFG. The studied cagaiteira populations presented the same behavior of the appraised phenophases. The cagaiteira leafing in the studied populations behaves in a continuous way, during the whole year and at greater intensity in the period of total leaf renewal, coinciding with the increase of the relative air humidity and temperature in the months of September and October. The cagaiteira flowering is synchronic o and abundant. The fruiting was smaller in younger plants. The development and maturation of the fruit was fast (30 to 40 days) and coinciding with the start of the rainy season. Older and more developed cagaiteiras (Senador Canedo) presented higher production, some reaching over 2,000 fruits per year.
RESUMO -Foram selecionadas 14 áreas no Estado de Goiás, Brasil, com alta densidade da espécie araticum (Annona crassiflora Mart.) e com menor ação antrópica possível. Cada área possuía 1,0ha, estando subdividida em quatro quadrantes (0,25ha). Foram levantados os dados relativos às características físicas das áreas, das plantas e dos solos (0-20cm). Os resultados demonstraram que o araticum tende a ocorrer em maior densidade em Latossolos não concrecionários dos chapadões, em formação de cerrado típico. A área basal total das plantas entre as áreas em estudo é influenciada positivamente pela concentração de Ca, Mg e K no solo. A densidade de plantas de araticum é influenciada negativamente pela concentração de Fe no solo. A distância geográfica entre as áreas não influenciou na densidade de plantas, na área basal média e na área basal total das plantas de araticum. Termos para indexação: frutífera, cerrado, caracterização ambiental. ENVIRONMENTAL CHARACTERIZATION WITH HIGH NATURAL OCCURRENCE OF ARATICUM (Annona crassiflora Mart.) IN GOIÁS STATEABSTRACT -14 areas were selected in the State of Goiás, Brazil, with high occurrence of the araticum specie (Annona crassiflora Mart.) and with smaller human being action possible. Each area had 1ha, and these areas were subdivided in four quadrants of 0,25ha. The relative data of the areas, plants and soils physical characteristics (0-20cm) was collected. The results demonstrated that the araticum tends to happen in larger density in "latossolos" in "concrecionários" of the plains in formation of typical cerrado. The total basal area of the araticum plants among the areas in study is influenced positively by the concentration of Ca, Mg and K in the soil. The density of araticum plants is influenced negatively by the concentration of iron in the soil. The geographical distance among the areas did not influence the density of plants, in the medium and total basal area of the araticum plants.
Irrigation management associated with other banana agricultural practices can provide an increased productivity and improved fruit quality. This study assessed the productive characteristics of banana genotypes under different irrigation water depths. The experiment was conducted at the experimental area of the School of Agronomy (EA/UFG) in Goiânia, GO, Brazil. The experimental design was a split-plot randomized block design, in which four irrigation water depths (30, 65, 100, and 135% of crop potential evapotranspiration, ETpc) composed the plots and three genotypes (‘FHIA 18’, ‘Grande-Naine’, and ‘Prata’) the subplots, with a spacing of 2.5 × 1.6 m. During the experimental period (first production cycle), the total precipitation was 1719.20 mm. Characterization of genotype development and yield was performed with the following assessments: bunch mass (kg), number of hands, stalk mass (kg), fruit diameter of the second hand (mm), fruit length of the second hand (cm), mass of the second hand (kg), number of fruits of the second hand, total number of fruits, and number of damaged fruits. The cultivar ‘FHIA 18’, differently from the others, showed a significant response to irrigation water depths on productivity. In the genotypes ‘Grande-Naine’ and ‘Prata’, an influence of irrigation was observed only on external and visual characteristics of fruit (diameter, length, and number of damaged fruits). In the genotype ‘Prata’, the irrigation water depth of 965 mm allowed fruit production with a larger diameter. Fruit length in the genotype ‘Prata’ increased linearly as water depth increased. The use of irrigation promoted a reduction in the number of damaged fruits in the genotypes ‘FHIA 18’ and ‘Grande-Naine’.
The present study aimed to evaluate the influence of row spacing, plant density, crop year and yield in crop agronomic parameters in a ‘Cerrado’ area in Brazil. The experiments were conducted during the 2010/2011 and 2011/2012 crop years, at an experimental Farm of the IF Goiás Campus Ceres, located in the city of Ceres, Goiás, Brazil. The experiment was conducted in a complete randomized block design in a 2x3x2 factorial (two crop years: 2010/2011 and 2011/2012, three population densities: 60,000, 70,000 and 80,000 plants ha-1 and two spacing: 0.50 and 0.80 m) with four repetitions, totaling 48 plots. The observed values for plant height and cob height were higher for the 2011/2012 season with values of 2.56 and 1.26 m, respectively. The cob diameter was higher for the 2011/2012 crop year with a value of 51.92 mm. The yield was higher for the 2010/2011 harvest. Increasing plant population and reducing row spacing can lead to an increase on the grain yield due to better spatial distribution of plants per area, fact observed mainly during the 2010/2011 crop year. Corn maintains high productivity with spacing of 0.50 and 0.80m. Increases in plant density can lead to increase on yield. Increasing plant population reduced the corn stem diameter.
Avaliou-se o desempenho agronômico de híbridos de milho em três épocas de semeadura no município de Ceres-GO. O experimento foi desenvolvido na Fazenda Experimental do IF Goiano Campus Ceres. O delineamento experimental foi o de blocos completos casualizados em esquema fatorial 10x3, dez híbridos de milho (Truck, Fórmula, P30F53, P3646H, P30F35H, AGN 30A91H, AGN 30A37H, AG 8088VTPRO, DKB 390 e DKB bi 9438) semeados em três épocas (30/11/2011, 01/02/2012 e 20/02/2012), com três repetições. Os híbridos que apresentaram maior número de fileira de grãos foram Truck, Formula, P30F35H, AG8088PRO. Para altura de planta e da primeira espiga e o diâmetro do colmo houve diferença estatística nas épocas de semeadura. O híbrido DKB Bi 9438 diferiu estatisticamente dos demais para massa de 1000 grãos. Na semeadura de 30/11/2011, os diâmetros de espiga maior foram para os híbridos Truck, P3646H, P30F35H e DKB 390. O híbrido DKB Bi 9438 diferiu estatisticamente, para comprimento de espiga, dos demais na semeadura de 30/11/2012. A semeadura de 30/11/2011 diferiu das demais épocas para produtividade. Os híbridos favoráveis para produção em época de altos índices pluviométricos (30/11/2011) foram o DKB Bi 9438 e o P3646H.
RESUMO -Este estudo teve como objetivo avaliar o comportamento vegetativo de cultivares de bananeira sob lâminas de irrigação. As lâminas de irrigação corresponderam à testemunha, 40; 80 e 120% da evapotranspiração potencial da cultura estimada a partir da evaporação do tanque classe A. O experimento foi conduzido no período de 24 de janeiro de 2004 a 23 de janeiro de 2006, com as cultivares: falsa FHIA 18, Grande Naine, Prata e Thap Maeo. As quatro cultivares apresentaram respostas significativas às lâminas de irrigação, no entanto falsa FHIA 18 teve o maior número de variáveis influenciadas. O uso da irrigação influenciou de forma diferenciada no comportamento das cultivares. O efeito de lâminas dentro de cultivares, aos quatro meses após o plantio, ocorreu apenas na cultivar Prata para a altura de plantas, aos oito meses do plantio em todas as cultivares e variáveis. Na ocasião da colheita, houve efeito das lâminas de irrigação dentro das quatro cultivares. No segundo ciclo, não se verificou resposta à irrigação aos quatro e oito meses da escolha do primeiro seguidor; ocorreu o efeito de cultivares e resposta à irrigação no número de folhas viáveis aos quatro meses dentro de Grande Naine, e na altura de plantas e no diâmetro aos oito meses. O crescimento e o desenvolvimento vegetativo das cultivares falsa FHIA 18, Grande Naine, Prata e Thap Maeo, nas condições do Cerrado, são influenciados positivamente com o uso da irrigação. O ciclo total das quatro cultivares diminui com o uso da irrigação. Termos para indexação: Musa sp., bananeira, crescimento, desenvolvimento, irrigação. GROWTH AND DEVELOPMENT OF IRRIGATED BANANA ORCHARD CULTIVARSABSTRACT -This study had the objective of evaluating the vegetative cultivars behavior of banana orchard under levels of irrigation. The irrigation levels indicated the control 40, 80 and 120% of the evaporation-transpiration potential of the culture based on evaporation in a classe-A tank. The experiment was lead in the period of January 24, 2004 through January 23, 2006, with the cultivars of: false FHIA 18, Grand Naine, Prata and Thap Maeo. The four cultivars presented significant answers to the irrigation levels, however false FHIA 18 had the biggest number of variables influenced by the irrigation levels. The use of the irrigation levels influenced the behavior of the cultivars in a differentiated manner. The effect of levels inside the cultivars, four months after the plantation, affected only the height of plants in the Prata cultivars. By eight months, every cultivars and variables were affected. At the time of harvest, the levels of irrigation had affected all the four cultivars. During the second cycle, a feedback to the irrigation levels was not observed in the four and eight months of the first follower; the effect occurred to the cultivars and the feedback to the irrigation in the number of viable leaves by four months of the cultivars Grand Naine, and in the height of plants and in the diameter by eight months. The growth and the vegetative development of the fals...
Dipteryx alata Vogel (“baru tree”) is a fruit species native to the Brazilian Cerrado and presents a multiplicity of uses, constituting a priority species for domestication and cultivation studies. The objective of the current study was to characterize fruit and seeds of D. alata from several regions of the Brazilian Cerrado biome to support strategies for ex situ conservation and utilization of the genetic variability of the species. Fruits were collected from 25 subpopulations, sampling six mother plants per subpopulation, with collection of at least 25 fruits per plant. The physical trait data of the fruits and seeds were submitted to descriptive analysis, analysis of variance and correlation among traits. There was significant variation for all traits among subpopulations and among individuals within subpopulations. The highest proportion of variability was observed among individuals within subpopulations. The phenotypic differentiation among subpopulations was higher for fruit traits compared to seed traits. The correlation analysis showed the existence of significant correlations for most of the traits pairs in the different hierarchical levels. It was concluded that D. alata presents phenotypic variability to support germplasm collection programsand formation of base populations for breeding programs, recommending the sampling in several locations to ensure an adequate representativeness of the phenotypic variability.
The Cerrado has fruit species of great potential of use in commercial systems of agricultural production. They are obliged to carry out studies on the production of seedlings, contributing to a perpetuation of these species. The objective of this study was to evaluate the effect of different substrates and different doses of Basacote® on the emergence and early development of B. gaudichaudii plants. The experiment was conducted in a greenhouse in the experimental area of the Goiano Federal Institute-Campus Ceres. Experiment 1 was composed of six treatments (six compositions) and experiment 2 consisted of 5 treatments (five doses of Basacote®). The experimental design was a randomized complete block with four replicates and 12 plants per experimental plot. The variables analyzed were emergence, height, lap diameter, number of leaves, root system length, survival rate and fresh and dry matter of the aerial part and root system. The substrate composed of bovine manure + Plantmax® + soil provides better conditions for growth and development of mamacadella plants. The mamacadela seedlings do not tolerate high levels of organic matter in the substrate. For the production of Brosimum gaudichaudii seedlings the use of the 6.48 g dose of Basacote® plant-1 is indicated.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
334 Leonard St
Brooklyn, NY 11211
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.