scholarly journals Desempenho de cultivares de mamona no Semiárido paraibano: componentes de crescimento e teor de óleo

2015 ◽  
Vol 10 (5) ◽  
pp. 127
Author(s):  
R. R. A. Lacerda ◽  
A. S. Souza ◽  
G. F. Frutado ◽  
I. S. Queiroga ◽  
W. A. Lacerda
Keyword(s):  
Experimental Design ◽  
Castor Bean ◽  
Oil Content ◽  
Precision Farming ◽  
The Other ◽  
Raw Material ◽  
Production Yield ◽  
Third Order ◽  
The Third ◽  
Growth Production

<p>A cultura da mamona vem despontando como uma das principais matérias-primas, para produção de óleo, especialmente no Nordeste, todavia muitos fatores têm dificultado o estabelecimento dessa lavoura em novas áreas dentre os quais destacam-se a falta de cultivares adaptadas a cada região de cultivo. O presente estudo foi desenvolvido com o objetivo de identificar cultivares de mamona com adaptação ao sertão paraibano. O trabalho foi conduzido no Sítio Monte Alegre zona rural do município de Pombal - PB, o delineamento experimental foi em blocos ao acaso com sete tratamentos compostos pelos cultivares BRS Nordestina; BRS Paraguaçu; BRS Energia; AL Guarany-2002; IAC 2028; IAC Guarany e IAC 80, com quatro repetições, foram avaliadas as características de crescimento e teor de óleo nas sementes. Dos resultados registrou-se maior valor de comprimento do racemo as cultivares IAC 80 e IAC 2028, considerando as médias dos racemos até a 3ª ordem, para as características de massa e número de frutos por racemos foi constatado que a IAC 80 superou estatisticamente as demais cultivares, o maior teor de óleo nas sementes foi observado na cultivar BRS Energia que também conferiu maior rendimento de óleo entre as sete cultivares. Apesar disso, acredita-se que novos estudos devem ser realizados em diferentes épocas e formas de manejo para se identificar com maior precisão qual cultivar melhor se adapta a região.</p><p><strong><em>Performance cultivars castor bean cultivars in Semiarid Paraiba: components of growth and oil content</em></strong></p><p><strong>Abstract</strong><strong>: </strong>Currently the culture of castor has emerged as a of the main raw material for the production of oil, especially in the Northeast, however many factors has hampered the establishment of this tilth in new areas among which is the lack of cultivars adapted to each region of cultivation. This study was developed with the objective of identify castor’s cultivars with adaptation to the Paraíba Sertão. The study was conducted on Sítio Monte Alegre countryside of municipality of Pombal - PB, the experimental design was the of random blocks with seven treatments composed by BRS Northeastern; Paraguaçu BRS; BRS Energy; Guarany AL-2002, IAC 2028, IAC Guarany and IAC 80, with four replications were evaluated characteristics of growth, production, yield and oil content in the seeds. From the results was registrated a higher From the results recorded was greater value of the length of cluster IAC 80 and IAC cultivars in 2028, considering the averages of racemes up to the third order, the characteristics of mass and number of fruits per raceme was found that 80 IAC statistically outperformed the other cultivars, the higher oil content in seeds was observed in BRS Energy also gave higher oil yield among the seven cultivars. Nevertheless, we believe that further studies should be performedat different times and forms of management to identify with greater precision farming which best fits the region.<strong></strong></p>

Near-Infrared Combination and Overtone Bands of CH in CHX3, CHX2—CHX2, and CHX2—CX2—CHX2

2005 ◽  
Vol 59 (11) ◽  
pp. 1393-1398 ◽  
Author(s):  
Reikichi Iwamoto ◽  
Akishi Nara ◽  
Toshihiko Matsuda
Keyword(s):  
Excited State ◽  
Near Infrared ◽  
Present Report ◽  
Spectral Characteristics ◽  
The Other ◽  
Coupled Modes ◽  
Third Order ◽  
The Third ◽  
Combination Bands ◽  
Deformation Modes

In the present report we studied spectral characteristics of the near-infrared combination and overtone bands of CH vibrations of a CH sequence. The near-infrared bands of the CH in CHX3 (X, halogen), which were interpreted in terms of the CH stretching and CH deformation fundamentals without any ambiguity, typically showed how the frequency and intensity of a combination or an overtone depend on the vibrational excited state. In the CH–C–CH of CHX2CX2CHX2, the vibrations of one CH are isolated from those of the other CH, and the combination and overtone bands were similarly interpreted as those of the CH, although each of the combination bands was split into two because of non-degeneracy of the CH deformation. In the CH–CH of CHX2CHX2, the CH deformations only have coupled modes. The first combination showed four narrowly separate bands, which were reasonably interpreted on the basis of the CH stretching and the coupled CH deformation modes. We demonstrated that the first combination of coupled modes as well as the combination of up to, at least, the third order of isolated modes have the nature of the characteristic bands.

scholarly journals PLASTICS MADE FROM RENEWABLE SOURCES – POTENTIAL AND PERSPECTIVES FOR THE ENVIRONMENT AND AGRICULTURE OF THE THIRD MILLENIUM

1970 ◽  
Vol 65 (2) ◽  
Author(s):  
N. Cioica ◽  
C. Cota ◽  
Mihaela Nagy ◽  
G. Fodorean
Keyword(s):  
Food Industry ◽  
The Other ◽  
Raw Material ◽  
Renewable Sources ◽  
Great Opportunity ◽  
The Third ◽  
Other Hand ◽  
Agriculture Industry ◽  
The One ◽  
Agricultural Materials

Bioplastics constitute a great opportunity for agriculture, industry and environment. On the one hand, the basic raw material used to fabricate bioplastics is made from renewable agricultural materials, on the other hand, bioplastics have a wide application as packaging and protections in the food and non-food industry as catering products as protection films and foils and as compostable items in agriculture. Also very important is that after achieving the purpose for which they are produced, bioplastics become waste and their cycle is closed as they can be used as compost for agriculture.

The motion of slow positive ions in gases - Mobilities of ions in argon

1966 ◽  
Vol 259 (1100) ◽  
pp. 331-338
Keyword(s):  
Drift Velocity ◽  
Minority Group ◽  
Second Order ◽  
The Other ◽  
Third Order ◽  
The Third ◽  
Positive Ions ◽  
Majority Group ◽  
Gas Molecules

This second slower group was resolved only in the third order maxima and was present in such small numbers that its mobility could not be accurately determined. Nevertheless, when the two groups of ion are resolved in this way the correct value is obtained for the mobility of the majority group. The lower values of mobility, sometimes found when the first and second order maxima were used, were due to the perturbation of the peaks of the majority group by the unresolved minority group. This minority group had a lower drift velocity than the other group and was seen to become more predominant as the conditions were altered so that the number of collisions between the faster ions and the gas molecules was increased.

scholarly journals I. On curvature and orthogonal surfaces

1873 ◽  
Vol 21 (139-147) ◽  
pp. 166-167
Keyword(s):  
Differential Equation ◽  
Partial Differential Equation ◽  
Orthogonal System ◽  
The Other ◽  
Third Order ◽  
Partial Differential ◽  
The Third ◽  
The Subject

The principal object of the present Memoir is the establishment of the partial differential equation of the third order satisfied by the parameter of a family of surfaces belonging to a triple orthogonal system. It was first remarked by Bouquet that a given family of surfaces does not in general belong to an orthogonal system, but that (in order to its doing so) a condition must be satisfied: it was afterwards shown by Serret that the condition is that the parameter considered as a function of the coordinates must satisfy a partial differential equation of the third older, this equation was not obtained by him or the other French geometers engaged on the subject, although methods of obtaining it, essentially equivalent but differing in form, were given by Darboux and Levy.

scholarly journals Sunflower performance as a function of phosphate fertilization in semiarid conditions

2020 ◽  
Vol 42 ◽  
pp. e42960
Author(s):  
Enielson Bezerra Soares ◽  
Aurélio Paes Barros Júnior ◽  
José Ricardo Tavares de Albuquerque ◽  
Manoel Galdino dos Santos ◽  
Hamurábi Anizio Lins ◽  
...  
Keyword(s):  
Experimental Design ◽  
Oil Content ◽  
Block Design ◽  
The Other ◽  
Agricultural Crop ◽  
Agricultural Crops ◽  
P Content ◽  
Randomized Complete Block Design ◽  
Phosphate Fertilization ◽  
Semiarid Conditions

The objective of this work was to evaluate the response of sunflower cultivars submitted to increasing levels of phosphate fertilization in two crops. The experimental design was a randomized complete block design with four replicates in subdivided plots, where five doses of simple superphosphate (0, 50, 100, 150, and 200 kg ha-1 P2O5) were allocated to the plots and three sunflower cultivars (Aguará 06, Altis 99, and Embrapa 122-V2000) were assigned to the subplots. The variables evaluated were the P content in the diagnostic leaf, number of achenes per capitulum, achene yield (kg ha-1), oil content (%) and oil yield. The phosphorus doses increased the components of production. The dose that provided the best sunflower performance varied for the different cultivars. Among the doses studied, fertilization with 100 kg ha-1 P2O5 in the 2016 agricultural crop and 150 kg ha-1 P2O5 in the 2017 agricultural crop provided the best conditions for sunflower cultivation. The cultivar Aguará 06 produced more achenes and oil than the other cultivars analyzed in the agricultural crops.

The Finite Screw System Associated With the Displacement of a Line

2003 ◽  
Vol 125 (1) ◽  
pp. 105-109 ◽  
Author(s):  
Chintien Huang ◽  
Jin-Cheng Wang
Keyword(s):  
Exceptional Case ◽  
The Other ◽  
Third Order ◽  
Analytical Geometry ◽  
The Third ◽  
Linearly Independent ◽  
Finite Displacement ◽  
Definition Of

In determining the screw systems associated with incompletely specified displacements, the displacement of a line was known to be an exceptional case. Recent research has concluded that all possible screws for the finite displacement of a line do not form a screw system. This paper utilizes Dimentberg’s definition of pitch to demonstrate that all possible screws for displacing a line from one position to another can indeed form a screw system of the third order. Two different approaches are taken: one uses the concept of a screw triangle, and the other is based on analytical geometry. A set of three linearly independent screws of the screw system is shown to be perpendicularly intersecting the external bisector of the initial and final positions of the line.

scholarly journals Predictive Modeling and Validation on Growth, Production of Asexual Spores and Ochratoxin A of Aspergillus Ochraceus Group under Abiotic Climatic Variables

2021 ◽  
Vol 9 (6) ◽  
pp. 1321
Author(s):  
Ahmed Abdel-Hadi ◽  
Bader Alshehri ◽  
Mohammed Waly ◽  
Mohammed Aboamer ◽  
Saeed Banawas ◽  
...  
Keyword(s):  
Ochratoxin A ◽  
Polynomial Regression ◽  
Fungal Growth ◽  
Climatic Variables ◽  
Aspergillus Ochraceus ◽  
Activity Levels ◽  
Third Order ◽  
The Third ◽  
Group A ◽  
Growth Production

This study aimed to generate predictive models for growth, sporulation, and ochratoxin A (OTA) production under abiotic climatic variables, including temperatures (15–35 °C) and water activity levels (0.99–0.90 aw) by Aspergillus ochraceus group. The data were divided into three sets: one for training, one for testing, and the third one for model validation. Optimum growth occurred at 0.95 aw and 25 °C and 0.95 aw and 30 °C for A. westerdijkiae and A. steynii, respectively. Significantly improved A. westerdijkiae and A. steynii spore production occurred at 0.95 aw and 20 °C and 0.90 aw and 35 °C, respectively. A. steynii and A. westerdijkiae produced the majority of OTA at 35 °C and 0.95 aw and 25–30 °C at 0.95–0.99 aw, respectively. The accuracy of the third-order polynomial regression model reached 96% in growth cases, 94.7% in sporulation cases, and 90.9% in OTA production cases; the regression coefficients (R2) ranged from 0.8819 to 0.9978 for the Aspergillus ochraceus group. A reliable agreement was reached between the predicted and observed growth, sporulation, and OTA production. The effects of abiotic climatic variables on growth, sporulation, and OTA production of A. ochraceus group have been effectively defined, and the models generated were responsible for adequately predicted and validated models against data from other strains within A. ochraceus group that had been published in the literature under the current treatments. These models could be successfully implemented to predict fungal growth and OTA contamination on food matrices for these strains under these conditions.

scholarly journals XXIII.—An Example of the Method of Deducing a Surface from a Plane Figure

1884 ◽  
Vol 32 (2) ◽  
pp. 411-413
Author(s):  
L. Cremona
Keyword(s):  
The Other ◽  
Conjugate Directions ◽  
Plane Figure ◽  
Third Order ◽  
The Third ◽  
The Common

Let there be given, in a plane π, six (fundamental) points 1, 2, 3, 4, 5, 6, of which neither any three lie in a right line, nor all in a conic; and consider the six conics [1] ≡ 23456, [2] ≡ 13456, [3] ≡ 12456, [4] ≡ 12356, [5] ≡ 12346, [6] ≡ 12345, and the fifteen right lines 12, 13,…, 16, 23,…, 56.There is a pencil of cubics 1223456 (curves of the third order, having a node at 1 and passing through the other fundamental points); their tangents at the common node form an involution, viz., they are harmonically conjugate with regard to two fixed rays. Five pairs of conjugate rays of this involution are already known; for instance, the line 12 and the conic [2] have conjugate directions at the point 1, for, they make up a cubic 1223456.

Experimental Study on Potential of Biogas Fermentation with Lily Straw

2012 ◽  
Vol 608-609 ◽  
pp. 396-401
Author(s):  
Hong Yang ◽  
Wu Di Zhang ◽  
Xing Ling Zhao ◽  
Jing Liu ◽  
Yu Bao Chen ◽  
...  
Keyword(s):  
Experimental Study ◽  
Anaerobic Digestion ◽  
Ph Value ◽  
Biogas Production ◽  
Gas Production ◽  
The Other ◽  
Raw Material ◽  
Production Potential ◽  
Biogas Yield ◽  
The Third

This paper studies on the biogas production yield of which use the lily straw as raw material and the fermentation is batch by batch at 30°C. In the third day of fermentation, fermented liquid became acidic. But it can be back to normal with the action of the anaerobic microbe. Its biogas yield is higher than the other group to adjust pH value. So gas production potential of the lily straw is 475ml/gTS and 573ml/gVS with 31 days of anaerobic digestion. The volumetric biogas production rate reaches 0.19ml/ml/d.

scholarly journals Population Arrangement of Crambe Plants

2018 ◽  
Vol 10 (10) ◽  
pp. 282
Author(s):  
Tiago Roque Benetoli da Silva ◽  
Beatriz Tomé Gouveia ◽  
Ana Claudia Mascarello ◽  
Affonso Celso Gonçalves-Júnior ◽  
Deonir Secco ◽  
...  
Keyword(s):  
Experimental Design ◽  
Grain Yield ◽  
Oil Content ◽  
Raw Material ◽  
Biodiesel Production ◽  
Row Spacing ◽  
Thousand Grain Weight ◽  
Population Densities ◽  
Crambe Abyssinica ◽  
Growing Seasons

Crambe (Crambe abyssinica Hochst) is an alternative raw material for biodiesel production. It is highly resistant to drought and has short growing cycle of 90 to 100 days. This work was conducted in Umuarama city, Parana State, Brazil, in Haplortox typical and aimed to study the effect of row spacing and population densities in the development of crambe in two growing seasons. The experimental design was a randomized block in a 3x3 factorial scheme with four replications. The treatments consisted of three row spacing (15, 30 and 45 cm) and three population densities (500 thousand, 750 thousand and 1 million plants per hectare). It was evaluated the thousand grain weight, oil content and grain yield. It can be concluded that high and low spacing plant population lead to smaller yields.

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