scholarly journals QUALIDADE DE ÓLEO DE PINHÃO MANSO CULTIVADO SOB DIFERENTES MANEJOS DE ÁGUA E ADUBAÇÃO POTÁSSICA

Irriga ◽  
2019 ◽  
Vol 24 (4) ◽  
pp. 817-829
Author(s):  
Adão Wagner Pêgo Evangelista ◽  
Ricardo Alexandre Florentino Barbosa ◽  
José Alves Júnior ◽  
Derblai Casaroli ◽  
Rilner Alves Flores ◽  
...  
Keyword(s):  
Jatropha Curcas ◽  
Irrigation Management ◽  
Oil Quality ◽  
Biofuel Production ◽  
Nutritional Requirement ◽  
Oil Composition ◽  
Irrigation Level ◽  
Potassium Fertilization ◽  
E Mail

QUALIDADE DE ÓLEO DE PINHÃO MANSO CULTIVADO SOB DIFERENTES MANEJOS DE ÁGUA E ADUBAÇÃO POTÁSSICA     ADÃO WAGNER PÊGO EVANGELISTA1; RICARDO FLORENTINO BARBOSA2; JOSÉ ALVES JÚNOR1; DERBLAI CASAROLI1; RILNER ALVES FLORES3 E RAFAEL BATTISTI1   1 Professor Doutor, Departamento de Engenharia de Biosssitemas, Escola de Agronomia, Universidade Federal de Goiás”- UFG, Rodovia Goiânia / Nova Veneza, Km 0, Goiânia, GO, Brasil. E-mail: [email protected], [email protected], [email protected], [email protected]. 2 Mestre, Departamento de Engenharia de Biosssitemas, Escola de Agronomia, Universidade Federal de Goiás”- UFG, Rodovia Goiânia / Nova Veneza, Km 0, Goiânia, GO, Brasil. E-mail: [email protected]. 3 Professor Doutor, Departamento de Solos, Escola de Agronomia, Universidade Federal de Goiás”- UFG, Rodovia Goiânia / Nova Veneza, Km 0, Goiânia, GO, Brasil. E-mail: [email protected] .     1 RESUMO   O pinhão manso é uma oleaginosa com alto potencial para produção de biodiesel e biolubrificantes, porém existem poucos trabalhos abordando o efeito da irrigação e demandas nutricionais sobre a qualidade e composição do óleo. Portanto, o objetivo deste trabalho foi avaliar o efeito da adubação potássica e da irrigação sobre a composição do óleo de pinhão manso. O experimento foi desenvolvido na área experimental da Escola de Agronomia da Universidade Federal de Goiás, Goiânia, Goiás. Os tratamentos consistiram de quatro doses de adubação potássica, sendo: 40, 80, 120, e 160 kg ha-1, e quatro lâminas de irrigação: 0% (sem irrigação), 40%, 80% e 120% da evaporação do tanque Classe A (ECA). O delineamento experimental foi em blocos casualizados, com 4 repetições, analisado no esquema de parcelas subdivididas. Para extração de óleo das sementes utilizou-se o método mecânico por prensagem e para obtenção da composição de óleo utilizou-se a cromatografia gasosa. Os tratamentos de adubação e irrigação promoveram alterações na qualidade do óleo de sementes de pinhão manso. Plantas adubadas com 120 kg ha-1 de K2O e irrigadas com a lâmina de irrigação de 80% da ECA obtém os melhores resultados.   Palavras-chave: biodiesel, lâminas de irrigação, nutrição de plantas, Jatropha curcas.     EVANGELISTA, A. W. P.; BARBOSA, R. F.; ALVES JÚNOR. J.; CASAROL, D.; FLORES, R. A.; BATTISTI, R. OIL QUALITY OF JATROPHA TREE CULTIVATED UNDER DIFFERENT MANAGEMENTS OF IRRIGATION AND POTASSIUM FERTILIZATION     2 ABSTRACT   Jatropha is an oilseed with high potential for biodiesel and biofuel production. However, studies are scarce about the effect of water and nutritional requirement in the oil quality and composition. Therefore, the objective of this work was to evaluate the effect of potassium fertilization and irrigation on the composition of jatropha oil. The treatments consisted of four potassium fertilization levels: 40, 80, 120, and 160 kg ha-1, and four irrigation levels: 0% (without irrigation), 40%, 80% and 120% of Class A pan evaporation (ECA). The experimental was design in randomized blocks with subdivided plots and four replicates. The mechanical method by pressing was used to extract oil from the seeds, using gas chromatography to obtain the oil composition. Fertilization and irrigation treatments promoted changes in the quality of jatropha seeds oil. Plants fertilized with 120 kg ha-1 of K2O and with  irrigation level of 80% of ECA show the best results.   Keywords: biodiesel, irrigation management, plant nutrition, Jatropha curcas.

scholarly journals Effect of nitrogen and potassium fertilization on the production and quality of oil in Jatropha curcas L. under the dry and warm climate conditions of Colombia

2014 ◽  
Vol 32 (2) ◽  
pp. 255-265 ◽  
Author(s):  
Omar Montenegro R. ◽  
Stanislav Magnitskiy ◽  
Martha C. Henao T.
Keyword(s):  
Fatty Acids ◽  
Oleic Acid ◽  
Jatropha Curcas ◽  
Oil Content ◽  
Unsaturated Fatty Acids ◽  
Saturated Fatty Acids ◽  
Fruit Production ◽  
Biodiesel Production ◽  
Oil Composition

This study was conducted to assess fruit and seed yield, oil content and oil composition of Jatropha curcas fertilized with different doses of nitrogen and potassium in Espinal (Tolima, Colombia). The yields ranged from 4,570 to 8,800 kg ha-1 of fruits and from 2,430 to 4,746 kg ha-1 of seeds. These yields showed that the fertilizer dose of 150 kg ha-1 N + 120 kg ha-1K increased fruit production by 92% and seed production by 95%, which represents an increase of about 100% in oil production, which increased from 947 to 1,900 kg ha-1. The total oil content in the seeds ranged from 38.7 to 40.1% (w/w) with a high content of the unsaturated fatty acids oleic (> 47%) and linoleic acid (> 29%). The highest content of oleic acid in the seed oil was from the unfertilized control plants and plants with an application of 100 kg ha-1 of N and 60 kg ha-1 of K, with an average of 48%. The lowest content of oleic acid was registered when a low dose of nitrogen and a high level of potassium were applied at a ratio of 1:2.4 and doses of 50 kg ha-1 N + 120 kg ha-1 K, respectively. Low contents of the saturated fatty acids palmitic (13.4%) and stearic (7.26%) were obtained, making this oil suitable for biodiesel production. The nitrogen was a more important nutrient for the production and quality of oil in J. curcas than potassium under the studied conditions of soil and climate.

scholarly journals Effect of Irrigation and Potash Levels on Keeping Quality of Potato

2020 ◽  
Vol 6 ◽  
pp. 92-100
Author(s):  
Ram Chandra Adhikari ◽  
Mahesh Kumar Rana
Keyword(s):  
Room Temperature ◽  
Irrigation Management ◽  
Quality Parameters ◽  
Optimum Level ◽  
Irrigation Level ◽  
Ambient Room Temperature ◽  
Keeping Quality ◽  
Four Levels ◽  
Plot Design

Irrigation and fertilizer are the most dominating factors, in deciding the keeping quality of potato. It is, therefore, essential to formulate the efficient, reliable and economically viable irrigation management strategy with the use of potassium nutrient in order to produce better keeping quality. The investigation comprising four levels of irrigation (25, 30, 35 and 40 mm CPE (Cumulative pan evaporation) and four levels of potash (0, 100, 125 and 150 kg/ha) was carried out at Research Farm of the Department of Vegetable Science, CCS Haryana Agricultural University, (Haryana) Hisar, India during two years to find out the optimum level of irrigation and potash for obtaining higher yield of potatoes with better keeping quality at ambient room temperature. The potato variety used for the investigation was Kufri Bahar. The treatments were laid out in a split plot design with three replications. The increasing levels of irrigation and potash showed significant improvement in keeping quality parameters of potato. Likewise, the values for physiological loss in weight and decay loss of potato tubers (%) at 15, 30, 45 and 60 days after harvest were the lowest with irrigation level 40 mm CPE and application of potash @ 150 kg/ha. The two years results suggest that the irrigation level 40 mm CPE along with potash @ 150 kg/ha has shown the best treatment combination for the storage of potato at ambient room temperature under semiarid conditions of Hisar (Haryana).

scholarly journals Yield and quality of melon under silicon doses and irrigation management in a greenhouse

2018 ◽  
Vol 48 (2) ◽  
pp. 140-146
Author(s):  
Cláudia Salim Lozano ◽  
Roberto Rezende ◽  
Tiago Luan Hachmann ◽  
Fernando André Silva Santos ◽  
Marcelo Zolin Lorenzoni ◽  
...  
Keyword(s):  
Nutrient Management ◽  
Block Design ◽  
Irrigation Management ◽  
Soluble Solids ◽  
Irrigation Level ◽  
Yield And Quality ◽  
Randomized Block Design ◽  
Maturation Index ◽  
Irrigation Levels

ABSTRACT The netted melon requires special growing conditions, including a protected environment, an adequate staking system and proper water and nutrient management. This study aimed to assess the effect of irrigation levels and silicon doses on the yield and quality of Sunrise hybrid melons, in a greenhouse. A randomized block design was used, with a 5 x 3 factorial scheme and four replications. The first factor consisted of five silicon doses (0 kg ha-1, 50 kg ha-1, 100 kg ha-1, 150 kg ha-1 and 200 kg ha-1) and the second of three irrigation levels (40 %, 70 % and 100 % of the ETc). The results demonstrated that the applied irrigation levels and silicon doses have no influence on the yield traits of melon plants. The irrigation level corresponding to 100 % of the ETc promotes higher values for soluble solids (9.86 ºBrix) and maturation index (114.9) on fruits. The increase of silicon doses up to 200 kg ha-1 also increases the maturation index in the treatment with the greatest irrigation level and reduces this index at the shallowest level applied.

scholarly journals Evaluation of water requirement, commercial quality, and yield response factor of gladiolus produced with automated irrigation in different growing periods

2020 ◽  
Vol 44 ◽  
Author(s):  
Jaqueline Jesus Santana dos Santos ◽  
Rogério Gomes Pêgo ◽  
Beatriz Rodrigues Monteiro Couto ◽  
Mateus Marques Bueno ◽  
Daniel Fonseca de Carvalho
Keyword(s):  
Irrigation Management ◽  
Total Duration ◽  
Water Requirement ◽  
Crop Water Requirement ◽  
Stem Length ◽  
Yield Response ◽  
Crop Water ◽  
Irrigation Level ◽  
Growing Period

ABSTRACT Water management and meteorological conditions during the cropping phase play an essential role in maintaining the commercial quality of cut flowers. This study evaluates water requirement, sensitivity to water deficit, and commercial quality of gladiolus ‘Amsterdam’ produced with automated irrigation in different growing periods. The experimental design was in randomized blocks with five replicates and consisted of the growing period factors (winter/spring 2018 and autumn/winter 2019) and the irrigation level factors (45% - L1, 60% - L2, 80% - L3, and 100% - L4 of crop water requirement). An automatic irrigation controller was used for irrigation management. At the harvest point, we evaluated the stems for the diameter, number of flowers, spike length, and floral stem length. We also evaluated stomatal conductance, leaf area, and duration of phenological phases on degree-days. The application of 100% crop water requirement using an automatic irrigation controller in the autumn/winter cycle results in better commercial classification. The treatment with 45% of the crop water requirement extended the total duration of the cycle. In conclusion, flower stems of better commercial classification are obtained with 100% of crop water requirement during the autumn/winter cycle.

scholarly journals Production and initial growth of forest species seedlings using sewage sludge and automated irrigation

2021 ◽  
Vol 45 ◽  
Author(s):  
Daniel Fonseca de Carvalho ◽  
Mateus Marques Bueno ◽  
Paulo Sérgio dos Santos Leles ◽  
João Felício Gonçalves Abreu ◽  
Rosaria da Costa Faria Martins ◽  
...  
Keyword(s):  
Irrigation Management ◽  
Early Growth ◽  
Quality Data ◽  
Initial Growth ◽  
Forest Species ◽  
Irrigation Level ◽  
Schizolobium Parahyba ◽  
Collar Diameter ◽  
Irrigation Levels

ABSTRACT Traditionally, irrigation management has not been used in forest nurseries, compromising the efficiency of the system and the quality of seedlings. In this study, we evaluated the quality of seedlings under different irrigation levels and the substrate composed of pure biosolid, and the initial growth of three Atlantic Forest tree species, produced with automated irrigation management. Four irrigation levels (V1 to V4) were applied by dripping on Schizolobium parahyba (Vell.) Blake, Cytharexyllum myrianthum Chamiáo and Ceiba speciosa Ravenna seedlings. After that, the seedlings were planted to evaluate their early growth in pots. The water was applied in response to species requirement and the volume was measured by water flow sensors, connected to an Arduino MEGA board. Height, collar diameter, leaf area, dry mass and chlorophyll content measurements were used to assess plant development on the seedling and early growth stages. Seedlings that received the highest average volume of water (V4) had a higher rate of growth in height and collar diameter for the three species studied. Despite this, the seedlings that received a smaller volume of water (V1) achieve similar size than V4 ones in pots. The plant growth and quality data, in the two phases analyzed, together with the aggregation of the substrate, indicate that the ideal irrigation level is linked to treatments that received the highest volumes of water (V3 and V4) in the seedling production phase. The results obtained indicate that it is possible to save water and produce seedlings of forest species with quality, ensuring their survival in the field.

scholarly journals Comparative Yeild and Oil Quality of Toxic and Non-Toxic Mexican <i>Jatropha curcas</i> Grown in the Same Agroclimatic Conditions

2014 ◽  
Vol 05 (02) ◽  
pp. 230-234 ◽  
Author(s):  
Khandual Sanghamitra ◽  
Ramirez Victorin Oramas ◽  
Rout Nutan Prasad
Keyword(s):  
Jatropha Curcas ◽  
Oil Quality

scholarly journals On-farm evaluation of seed yield and oil quality of linseed (Linum usitatissimum L.) in inland areas of Tuscany, Central Italy

2016 ◽  
Vol 11 (3) ◽  
pp. 199 ◽  
Author(s):  
Luciana G. Angelini ◽  
Silvia Tavarini ◽  
Daniele Antichi ◽  
Lara Foschi ◽  
Marco Mazzoncini
Keyword(s):  
Seed Yield ◽  
Linum Usitatissimum ◽  
Cropping Systems ◽  
Oil Quality ◽  
Economic Value ◽  
Central Italy ◽  
Weather Conditions ◽  
Oil Composition ◽  
Valuable Alternative

Traditional oilseed crops, such as linseed (<em>Linum usitatissimum</em> L.), may represent valuable alternative crops in cropping systems dominated by cereals, due to their adaptability to poor soils and to their high economic value related to the interesting quality of the oil, which is being increasingly appreciated by consumers and industry. The aim of this study was to test the adaptability of linseed to the inland marginal areas of Tuscany, and to explore the levels of crop yield and oil quality which can be achieved in hilly and lowland environments. For three years (2011-2014), experimental open fields (1- 5 ha each) were established and monitored in six commercial farms located in the inland countryside of Pisa province, Tuscany, Central Italy. The effect of environment (hilly and plain areas) was assessed in terms of yield and yield components as well as oil content and composition. Interestingly, seed yield and biomass production were very stable over years in the two areas of cultivation, irrespectively of yearly differences in weather conditions. As expected, higher yields were obtained in plain than in hilly areas. Regarding oil composition, oil extracted from linseed grown in plain environments was richer in linolenic acid, while, oppositely, both oleic and linoleic acids were more abundant in oil from hilly areas. Definitively, our results demonstrated that linseed might be a valuable alternative to cereal crops for marginal lands of Tuscany and, more in general, of Central Italy.

scholarly journals Construction for Δ-12 Fatty Acid Desaturase (FAD2) Silencing to Improve Oil Quality of Jatropha curcas Linn

2015 ◽  
Vol 65 ◽  
pp. 36-41 ◽  
Author(s):  
Condro Utomo ◽  
Andrea Putri Subroto ◽  
Chris Darmawan ◽  
Roy Hendroko Setyobudi ◽  
Yogo Adhi Nugroho ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Jatropha Curcas ◽  
Oil Quality ◽  
Fatty Acid Desaturase

Response of Wild Oat (Avena fatua), Flax (Linum usitatissimum), and Rapeseed (Brassica campestrisandB. napus)to Diclofop-methyl

Weed Science ◽  
1979 ◽  
Vol 27 (2) ◽  
pp. 212-215 ◽  
Author(s):  
P. N. P. Chow ◽  
D. G. Dorrell
Keyword(s):  
Protein Content ◽  
Iodine Number ◽  
Linum Usitatissimum ◽  
Oil Content ◽  
Oil Quality ◽  
Avena Fatua ◽  
Wild Oat ◽  
Oil Composition ◽  
Untreated Check

Diclofop-methyl {methyl ester of 2-[4-(2,4-dichlorophenoxy)phenoxy] propanoic acid} applied as postemergence treatment at rates of 0.84 to 1.68 kg/ha controlled 65 to 87% of the wild oat (Avena fatuaL.) without injuring flax (Linum usitatissimumL.) or rapeseed (Brassica campestrisL. andB. napusL.) Yields of both crops were significantly increased because wild oat competition was minimized. Wild oat control was further improved when adjuvants were added with the herbicide at a concentration of 0.5% (v/v) to the spray mixture. Oil content, iodine number, and linolenic acid concentration of flax, and oil content of rapeseed were increased with the application of the herbicide, while the protein content of meal from both crops was unaffected. When flax was grown in the greenhouse under weed-free conditions, the 0.84 and 1.12 kg/ha rates of the herbicide did not affect seed and oil composition, whereas the 1.68 kg/ha rate decreased protein content, and slightly increased oil content, but had no significant effect on iodine number when compared with the untreated check. The change in seed and oil quality of flax appears to be related to a reduction in weed competition by the herbicide.

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