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CRESCIMENTO DE MUDAS DE MARACUJAZEIROAMARELO INFLUENCIADO POR DOSES DE NITROGÊNIO E DE SUPERFOSFATO SIMPLES Texto completo
2007
Vander Mendonça | Ester Alice Ferreira | Ylana Cláudia Medeiros Paula | Thaiza Mabelle de Vasconcelos Batista | José Darlan Ramos
In order to evaluate the response of Nitrogen and Simple super phosphate fertilization in the growth of yellow passion fruit (Passiflora edulis Sims f. flavicarpa Deneger) seedling an experiment was carried out at shady chamber (50%) at Agricultural Department of Universidad Federal de Lavras (UFLA). A randomized block design was used with factorial scheme 4x4, with four replications and five plants by plot. It was used 4 doses of Nitrogen (0; 800; 1600 and 3200 mg N dm-3 of substrate) and 4 SS doses (0; 2,5; 5,0; and 10,0 kg m-3 of substrate. It was evaluated the characteristics: high of plants ( cm), root length (cm) number of leaves/plants, dry matter of aerial part and root (g/plant). ). It was verified that the nitrogen fertilization in cover warranty best quality in production of plants of yellow passion fruit. The simple super phosphate not showed good results substrate formulation to formation of seedlings of yellow passion fruit.
Mostrar más [+] Menos [-]OCORRÊNCIA DE Hoplolaimus galeatus ASSOCIADO À RIZOSFERA DE BANANEIRA NO BRASIL Texto completo
2007
Gustavo Rubens de Castro Torres | Hugo Agripino de Medeiros | Rui Sales Júnior | Romero Marinho de Moura
This paper reports the first occurrence of Hoplolaimus galeatus associated to banana (Musa sp.) var. "Gran Naine" rhizosphere in Ceará State, Brazil.
Mostrar más [+] Menos [-]SUBSTITUIÇÃO DO FARELO DE SOJA POR URÉIA NA SUPLEMENTAÇÃO DE VACAS LEITEIRAS NO SERTÃO PERNAMBUCANO Texto completo
2007
José Nilton Moreira | Mario de Andrade Lira | Mercia Virginia Ferreira dos Santos | Marcelo de Andrade Ferreira | Airon Aparecido Silva de Melo
The objective of this experiment was evaluate the effect of nitrogen nonproteic (NNP), that is urea and ammonia sulphate, replace to soybean meal in the supplementation of milk cows fed with differed buffel grass and cactus forage. The work was carried out at IPA - Experimental Station in Serra Talhada - PE. Eight cows were fed in a 7.5 ha area, four from the Guzera race and four from the 5/8 Holstein/Zebu. They were supplied with 38 kg of cactus forage (P) and soybean meal (FS), being replaced by urea + ammonia sulphate (U+SA). The experimental design was the Latin Square, and the treatments were P + FS (1.69 kg FS); P + 2/3FS + 1/3U (1.13 kg FS + 97 g U+SA); P + 1/3FS + 2/3U (0.56 kg FS + 195 g U+SA) e P+U (292 g U+SA). The 5/8 Holstein/Zebu cows were more productive than the Guzera, with the production of 7.08 and 7.31 against 4.67 and 5.34 kg/day, respectively, for milk and corrected milk for 4% of fat. There was no difference among the treatments or interaction race x treatment, so that the NNP could substitute soybean meal in the conditions of developed experiment.
Mostrar más [+] Menos [-]RESPOSTAS FISIOLÓGICAS DE CAPRINOS BOER E ANGLO-NUBIANA EM CONDIÇÕES CLIMÁTICAS DE MEIO-NORTE DO BRASIL Texto completo
2007
Luís Madeira Martins Júnior | Amilton Paulo Raposo Costa | Danielle Maria Machado Ribeiro | Sílvia Helena Nogueira Nogueira Turco | Maria Christina Sanches Muratori
This work was carried out to measure the adaptability on the heart rate (HR), respiratory frequency (RF) and rectal temperature (RT) in Boer and Anglo-nubiana goats at Meio-Norte, Brazil. Fourteen male goats were used (7 = Boer and 7 = Anglo-nubiana) in the same conditions. In the same days and times were too collected the temperature and (TA) and relative humidity of the air (UR). The SNK test was used to compare the means. The results obtained to Bôer and Anglo-nubiana was, in dry period, HR (beats/minutes) = 79.3±16.1 and 97.0±18.3; RF (mov.min-1.) = 25.5±5.9 and 34.4±13.3; TR (oC) = 39.2±0.4 and 39.4±0.4. In rain period, in the same breed order HR = 75.1±6.9 and 82.5±6.0; RF (mov./min.-1) = 27.7±4.47 e 26.7±5.5; TR (oC) = 39.3±0,4 and 39.4±0,4. The TA, in oC, and UR, in %, were in the dry period 33.0±1.5 and 55.0±7.43; and in the rain period, 30.0±2.02 and 81.2±6,99. The Anglo-nubiana goats showed the highest HR, RF and RT relative to the Boer goats in the dry and in the rain periods that indicate the Boer goats are better adaptable in the hot stress conditions.
Mostrar más [+] Menos [-]QUALIDADE DO MAMÃO 'FORMOSA' SUBMETIDO A DIFERENTES TEMPERATURAS DE REFRIGERAÇÃO Texto completo
2007
Railene Hérica Carlos Rocha | Josivan Barbosa Menezes | Selma Rogéria de Carvalho Nascimento | Glauber Henrique de Souza Nunes
The objective of this work was evaluating the principal alterations of the chemical properties of quality of the papaya 'Formosa' under refrigerated storage. The harvest of fruits was accomplished in a commercial planting located in the municipal district of Baraúna-RN. The storage happened in cameras under controlled conditions of temperatures (8, 10 and 12 ºC ± 1 ºC) and relative humidity of the air (90 ±5%) during periods of 7, 14, 21 and 28 days. After each period, the papayas were transferred to environmental conditions (20 ± 1oC 60 ± 5% UR) where a period of shelf life of seven days was simulated. Then, the papayas were analyzed regarding the titratable acidity (ATT), C vitamin, total soluble solids (SS), starch, reducing and non-reducing sugars. A completely randomized experimental design was used, in a factorial 3 x 4 outline (temperatures x time of storage), with five replications and two fruits per plot. The best extension for the post harvest useful life of papaya 'Formosa' was esteemed for the fruits submitted to 10 °C and 90 ± 5% UR up to 20 days, with soluble solids above 12% and C vitamin around 40 mg×100 g-1. The fruits submitted to 8 °C, 90 ± 5% UR had the worst estimates, presenting the smallest contents of SS.
Mostrar más [+] Menos [-]SOLOS E CLASSES DE TERRAS PARA IRRIGAÇÃO NO MUNICÍPIO DE ITAPORANGA, PB Texto completo
2007
Ridelson Farias de Sousa | Marx Prestes Barbos | Severino Pereira de Sousa Júnior | Cícero Pereira Cordão Terceiro Neto | Antônio Nustenil de Lima
The irrigation practice, in a lot of situations, is the only way to guarantee agricultural productivity and economic and social development, especially in the semi-arid region of the Northeast Brazil that is characterized by rainfall irregularities. The objective of the present work was to quantify qualitatively the lands of the farm Agreste, located in the Microrregião do Alto Piranhas, Itaporanga - PB, in classes of potential aptitude for irrigation. For this was taken in consideration the soil characteristics and the available water resources. In the farm 16.80 hectares (3.29% of the lands) can be used for irrigation with restrictions. 144.96 hectares (28.38% of the lands) are irrigable, but only for special use. Finally, 349.04 hectares (68.33% of the lands) are not inapt for irrigated agriculture.
Mostrar más [+] Menos [-]POTENCIAL DE PRODUÇÃO DE CAPIM BUFFEL NA ÉPOCA SECA NO SEMI-ÁRIDO PERNAMBUCANO Texto completo
2007
José Nilton Moreira | Mario de Andrade Lira | Mercia Virginia Ferreira dos Santos | Gherman Garcia Leal de Araújo | Grecia Cavalcanti da Silva
With The experiment was carried out during the dry season in the experimental station of Serra Talhada -IPA, state of Pernambuco. The objective was to evaluate the botanical composition, the availability and the quality of the fodder and the diet of the fistulated animals grazed in a field of differed buffel grass. Twenty-four species of twenty-two genus and twelve families were found in the area of study, and the available fodder varied from 6492 kg DM/ha in the beginning of the work to 3356 kg DM/ha in the end. The buffel grass always participated with over 90% in the different period of studies. The in vitro dry matter digestibility (IVDMD) that was always inferior to 50%, allied to crude protein content, both in the pasture and in the diet of the animals were very low as expected to differed pasture grass.
Mostrar más [+] Menos [-]NIVEIS DE SÓDIO NA RAÇÃO DE FRANGAS DE REPOSIÇÃO DE 12 A 18 SEMANAS DE IDADE Texto completo
2007
Marcelo Luís Gomes Ribeiro | José Humberto Vilar da Silva | Alex Martins Varela de Arruda | Janaína Maria Batista de Sousa | Fernando Guilherme Perazzo Costa
The experiment were carried out to determine sodium requirements for egg-white (EW) and egg-brown (EB) strain pullets from 12 to 18 weeks of age. It was used a completely randomized design according to a 6x2 factorial (sodium levels: 0.04; 0.10; 0.16; 0.21; 0.27 and 0.32%; with 2 strains), content five replicates of six pullets per experimental unit. The standard basal diet was formulated to contain 2,900 kcal AMEn/kg and 14.0 % CP. Feed intake, water intake, daily weight gain, feed: gain ratio, rectal temperature, and comb size were evaluated, as well as feces dry matter and humidity. In the experiment, there was no interaction between sodium levels and strains on the studied variables. The sodium levels had significant effects on feed intake, daily weight gain and feed: gain ratio according to the quadratic model and increased water intake and feces humidity linearly, whereas the feces dry matter and rectal temperature decreased linearly. For EW and EB strain, it is recommended 0.18 % sodium or daily intake of 131 and 148 mg of sodium from 12 to 18 weeks of age.
Mostrar más [+] Menos [-]GERMINAÇÃO E DESENVOLVIMENTO INICIAL DE PLÂNTULAS DE MELOEIRO EM DIFERENTES NÍVEIS DE SALINIDADE DA ÁGUA DE IRRIGAÇÃO Texto completo
2007
Gilvania de Souza Ferreira | Salvador Barros Torres | Andréa Raquel Fernandes Carlo da Costa
The effects of salinity on the plant are first noticed during the germination process. Therefore, the aim of this work was to evaluate germination and initial development stage of melon plants hybrids (Mandacaru and Vereda) in different levels of salinity of irrigation water. Research was conduted at the Seed Analysis Laboratory of the Department of Crop Science of the UFERSA from February to April 2007. The treatments were organized in a completely randomized design in factorial scheme 2 x 6 (two hybrids of melon plant Mandacaru and Vereda, and six levels of electrical conductivity of irrigation water: 0,45; 1,95; 3,45; 4,95; 6,45 and 7,95 dSm-1), with four replicates. Evaluation of speed of emergence-index, height of the aerial part of the seedling, dry mass of the aerial part of the seedling and seedling emergence. Compared to the Vereda Hybrid, the Mandacaru proved to be the most tolerant to salinity due to higher estimates of the speed of emergenceindex, height of the aerial part of the seedling, dry mass of the aerial part of the seedling and seedling emergence in different levels of salinity of irrigation water.
Mostrar más [+] Menos [-]EFEITO DA TEMPERATURA E DA LUZ NA GERMINAÇÃO DE SEMENTES DE ALFAVACA (Ocimum basilicum L.) Texto completo
2007
Maria Lucilene de Sousa Lima | Brígida Savana de Souza | Antonio Marcos de Oliveira | Salvador Barros Torres
This study evaluated the effect of different temperatures and light conditions on Ocimum basilicum L. seed germination. The treatments were the temperatures of 20ºC, 25ºC and 30ºC and two different light expositions (constant dark and 8h of light plus 16h of dark). The tested variables were first count germination and germination percentage. The treatments consisted of 200 seeds, with four replications of 50 seeds each, sown on filter of paper for 14 days on germination chamber. The completely randomized design was used and the averages compared by Tukey test at 5% probability. The specie of Ocimum basilicum is positive photoblastic and temperature of 30ºC was the best condition for seed germination.
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