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Journal articles on the topic 'Castor'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Delâge, Denys. "Du castor cosmique au castor travailleur : histoire d’un transfert culturel." Les Cahiers des dix, no. 68 (March 31, 2015): 1–45. http://dx.doi.org/10.7202/1029289ar.

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Nous partons des travaux de François-Marc Gagnon sur les images des castors canadiens aux XVIIe et XVIIIe siècles, pour élaborer sur l’éthologie du castor et sa place dans l’univers symbolique autochtone. Nous traitons ensuite du castor dans la traite des pelleteries, puis de la perception coloniale du castor. Nous y analysons les mécanismes de transfert culturel d’un mythe autochtone du castor acteur primordial de la genèse, à celui, profane, d’un ordre social hiérarchique ou républicain fondé sur l’éthique du travail à la manière des castors. S’y greffe, la conviction de l’existence d’une so

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2

Islam, Md Saiful, Abu Saleh Ahmed, Aminul Islam, Sidek Abdul Aziz, Low Chyi Xian, and Moniruzzaman Mridha. "Study on Emission and Performance of Diesel Engine Using Castor Biodiesel." Journal of Chemistry 2014 (2014): 1–8. http://dx.doi.org/10.1155/2014/451526.

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This paper presents the result of investigations carried out in studying the emission and performance of diesel engine using the castor biodiesel and its blend with diesel from 0% to 40% by volume. The acid-based catalyzed transesterification system was used to produce castor biodiesel and the highest yield of 82.5% was obtained under the optimized condition. The FTIR spectrum of castor biodiesel indicates the presence of C=O and C–O functional groups, which is due to the ester compound in biodiesel. The smoke emission test revealed that B40 (biodiesel blend with 40% biodiesel and 60% diesel)

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3

Rückl, Eckhard, Klaus Fröhner, and Roland Hüggenberg. "CASTOR." Physik in unserer Zeit 28, no. 3 (1997): 122–29. http://dx.doi.org/10.1002/piuz.19970280307.

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4

Kinder, R. M. "Castor." Appalachian Journal 41, no. 1-2 (2013): 177. https://doi.org/10.1353/apl.2013.a955335.

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5

E. Aruna and V. Chandrika. "Inter cropping on growth, productivity and economics of kharif castor in YSR Kadapa district of Andhra Pradesh, India." Ecology, Environment and Conservation 29, no. 02 (2023): 755–57. http://dx.doi.org/10.53550/eec.2023.v29i02.035.

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A field experiment was conducted at Agricultural Research Station, Utukur, YSR kadapa district of Andhra Pradesh during rainy season of 2020 to study the performance of different intercrops in castor (Ricinus communis L.). The treatments were sole castor, castor + groundnut (1:3), castor + foxtail millet (1:3), castor + greengram (1:3), paired row of castor + groundnut (2:4), paired row of castor + foxtail millet (2:4), paired row of castor + greengram (2:4) and sole crops of groundnut, foxtail millet and greengram. Furrows were opened with inter row spacing of 90 cm and seed was planted at 60

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6

Sangeetha S. P., Pakale Smryti Dilip, Vanitha K., Somasundaram E., and Maragatham S. "Growth and Productivity of Castor as Influenced by Millet Based Intercropping Systems." International Journal of Environment and Climate Change 13, no. 12 (2023): 630–35. http://dx.doi.org/10.9734/ijecc/2023/v13i123723.

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A field experiment was conducted during summer season of 2022 at Tamil Nadu Agricultural University, Coimbatore to study the influence of millet based intercropping systems on growth and productivity of castor under irrigated situation. The experiment was laid out in randomized block design and replicated thrice. The treatment consist of nine cropping systems viz., castor + foxtail millet (1:3), castor + proso millet (1:3), castor + little millet (1:3), castor + kodo millet (1:3), paired row castor + foxtail millet (2:4), paired row castor + proso millet (2:4), paired row castor + little mille

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7

Chandawat, M. S., Abha Parashar, R. P. S. Jetawat, and Kamini Parashar. "Knowledge level of castor growing respondents of Sirohi district of Rajasthan." INTERNATIONAL JOURNAL OF AGRICULTURAL SCIENCES 17, no. 2 (2021): 569–72. http://dx.doi.org/10.15740/has/ijas/17.2/569-572.

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Castor is an important oilseed cash crop. Castor oil obtained from castor seed is non-edible, but is of great industrial importance. India is the largest castor growing country in the world. Gujarat state has highest area and production of castor. In Rajasthan, Sirohi district stands first in terms of area and production of castor. Therefore, a study was undertaken to assess the level of knowledge of respondents about castor production of Sirohi district. The study was conducted in 5 blocks. Further, 100 farmers were selected randomly from 10 villages. The findings of this study revealed that

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8

Li, Xiao Ping, Ding Guo Zhou, Si Qun Wang, and Deng Wei Xu. "The Micro-Structure of the Castor Stalk Based Panel." Advanced Materials Research 183-185 (January 2011): 2100–2104. http://dx.doi.org/10.4028/www.scientific.net/amr.183-185.2100.

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Castor- stalk is one kind of excellent wood materials can be used to make the wood based panel and substitute for the wood resource, reducing the pollution caused by castor stalk-burnt. The properties of the castor stalk based fiber panel are better than the properties of the castor stalk based particle panel made under the same techniques. It studied the infiltrating-characters, the radicals-concentration and the micro-structure of the castor stalk based panel with highly effective surface tension and angle of contact instrument, Electron spin resonating spectrum instrument (ESR) and Scanning

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9

Sangeetha S. P., Pakale Smryti Dilip, Vanitha K., Somasundaram E., and Maragatham S. "Studies on Castor and Nutri Cereals Based Intercropping Systems on Yield and Oil Content of Castor." International Journal of Plant & Soil Science 35, no. 23 (2023): 544–48. http://dx.doi.org/10.9734/ijpss/2023/v35i234272.

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A field experiment was conducted during summer season of 2022 at Tamil Nadu Agricultural University, Coimbatore to study the castor and nutri cereals based intercropping systems on yield and oil content of castor. The experiment was laid out in randomize block design comprises of thirteen treatments and three replications. The experiment results revealed that nutri cereals intercropping system and spacing between the castor row have no significant difference on the oil content of the castor. The highest castor seed yield (2098 kg ha-¹) was recorded in sole castor which was found at par with pa

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10

Ramanjaneyulu, A. V., K. Indudhar Reddy, M. V. Nagesh Kumar, et al. "Agro-economic Feasibility and Indices of Castor+Groundnut Intercropping System Under Irrigated Conditions During Rabi Season in Telangana." International Journal of Bio-resource and Stress Management 12, no. 2 (2021): 074–81. http://dx.doi.org/10.23910/1.2021.2154a.

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An experiment was carried out for three consecutive years from 2014-15 to 2016-17 at Regional Agricultural Research Station (RARS), Palem, Professor Jayashankar Telangana State Agricultural University, Telangana, India to study and understand the agro-economic feasibility and various indices of castor+groundnut intercropping system under irrigated conditions during rabi season. There were six treatments viz., sole castor, sole groundnut, castor+groundnut (1:5) with RDF (recommended dose of fertilizer) to both the crops, castor+groundnut (1:7) with RDF to both the crops, castor+groundnut (1:5)

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11

Gagnon, François-Marc. "La première iconographie du castor." Scientia Canadensis 31, no. 1-2 (2009): 12–26. http://dx.doi.org/10.7202/019752ar.

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Résumé La première iconographie du castor canadien suit des modèles européens quand il s’agit de reproduire les traits de la bête. Fidèle alors à la « doctrine des signatures », telle que définie par Michel Foucault, elle insiste soit sur la queue de l’animal qui étant recouverte d’écailles le classe parmi les « poissons » soit sur ce qu’on croyait être ses testicules et d’où on extrayait le castoreum. Cette iconographie est plus originale quand elle s’est mise en tête de représenter les cabanes et les digues de castors, ouvrages inconnus en Europe. Les barrages de castors ont beaucoup intrigu

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12

R.N. MEENA, Y. K. GHILOTIA, and SUNIL KUMAR. "Influence of planting pattern and sulphur levels on yield and quality of castor (Ricinus communis) under eastern Uttar Pradesh condition." Indian Journal of Agronomy 64, no. 2 (2001): 243–47. http://dx.doi.org/10.59797/ija.v64i2.5261.

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A field experiment was conducted during the rainy (kharif) season of 2012 and 2013 at Varanasi, Uttar Pradesh, to study the growth, yield and quality parameters of castor (Ricinus communis L.) as influenced by plant- ing pattern and sulphur levels under eastern Uttar Pradesh condition. The soil was clay loam, having pH 7.35, or- ganic carbon 0.37%, available nitrogen 205.1 kg/N/ha, phosphorus 25.2 kg P O /ha and potash 216.2 kg K O/ha. 2 5 2 The treatments consisting of 5 intercropping system, viz. castor + mung bean [(Vigna radiata (L.) R. Wilczek] (1 : 1), castor + mung bean (1 : 2), castor

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13

Patel, Vinay R., Gerard G. Dumancas, Lakshmi C. Kasi Viswanath, Randall Maples, and Bryan John J. Subong. "Castor Oil: Properties, Uses, and Optimization of Processing Parameters in Commercial Production." Lipid Insights 9 (January 2016): LPI.S40233. http://dx.doi.org/10.4137/lpi.s40233.

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Castor oil, produced from castor beans, has long been considered to be of important commercial value primarily for the manufacturing of soaps, lubricants, and coatings, among others. Global castor oil production is concentrated primarily in a small geographic region of Gujarat in Western India. This region is favorable due to its labor-intensive cultivation method and subtropical climate conditions. Entrepreneurs and castor processors in the United States and South America also cultivate castor beans but are faced with the challenge of achieving high castor oil production efficiency, as well a

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14

Desai, Chetan, A.L. JAT, S.K. SHAH, and A.G. DESAI. "Effect of relay intercropping of castor in kharif groundnut on system productivity and economic returns." Indian Journal of Agronomy 69, no. 4 (2024): 439–42. https://doi.org/10.59797/ija.v69i4.406.

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Castor and groundnut are important oilseed crop in India. Groundnut crop is sown at the onset of monsoon and while castor is grown in September in Gujarat. Hence, castor crop can be sown as relay intercrop in groundnut. It may increase crop production and profitability of farmers. Therefore, a field experiment was conducted at Centre for Oilseeds Research, Sardarkrushinagar Dantiwada Agricultural University, Sardarkrushinagar to study the feasibility of castor as relay intercropping in kharif groundnut during 2019–20 to 2021–22. Significantly higher groundnut equivalent yield (4,479 kg/ha) was

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15

Desai, Chetan, A.L. JAT, S.K. SHAH, and A.G. DESAI. "Effect of relay intercropping of castor in kharif groundnut on system productivity and economic returns." Indian Journal of Agronomy 69, no. 4 (2024): 439–42. https://doi.org/10.59797/ija.v69i4.5548.

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Castor and groundnut are important oilseed crop in India. Groundnut crop is sown at the onset of monsoon and while castor is grown in September in Gujarat. Hence, castor crop can be sown as relay intercrop in groundnut. It may increase crop production and profitability of farmers. Therefore, a field experiment was conducted at Centre for Oilseeds Research, Sardarkrushinagar Dantiwada Agricultural University, Sardarkrushinagar to study the feasibility of castor as relay intercropping in kharif groundnut during 2019–20 to 2021–22. Significantly higher groundnut equivalent yield (4,479 kg/ha) was

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16

&NA;. "Castor oil." Reactions Weekly &NA;, no. 1311 (2010): 19. http://dx.doi.org/10.2165/00128415-201013110-00063.

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17

&NA;. "Castor oil." Reactions Weekly &NA;, no. 1332 (2010): 14. http://dx.doi.org/10.2165/00128415-201013320-00042.

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18

Oberschelp, Arnold, Karsten Schmidt-Göttsch, and Günter Todt. "Castor quadruplorum." Archive for Mathematical Logic 27, no. 1 (1988): 35–44. http://dx.doi.org/10.1007/bf01625831.

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19

Huang, Fenglan, Yaxuan Jiang, Subin Zhang, et al. "A Comparative Analysis on Morphological and Physiological Characteristics between Castor Varieties (Ricinus communis L.) under Salt Stress." Sustainability 14, no. 16 (2022): 10032. http://dx.doi.org/10.3390/su141610032.

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Salt stress is one of the main abiotic factors affecting castor yield. Wild castor resources can provide important insights for cultivated castor breeding. However, little is known about how wild castor responds or adapts to salt stress. To understand the physiological mechanisms for salt tolerance in castor, the morphological and physiological responses of two varieties, wild and cultivated castor, with contrasted salt tolerance were characterized under salt stress. Seedlings were exposed to 0, 50, and 100 mM NaCl. The results showed that salt application significantly inhibited the increase

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20

Tulu, Dereje, Melkam Aleme, Gezahegn Mengistu, Ararsa Bogale, Kedir Shifa, and Esayas Mendesil. "Evaluation of Castor (Ricinus communis L.) Genotypes and Their Feeding Values on Rearing Performance of Eri Silkworm (Samia cynthia ricini Boisduval) (Lepidoptera: Saturniidae) in Southwest Ethiopia." Psyche: A Journal of Entomology 2022 (October 3, 2022): 1–7. http://dx.doi.org/10.1155/2022/1556776.

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The quality of feed plays an important role in the growth and development of silkworms and eventually in the economic traits of cocoons. This study was conducted to evaluate ten castors (Ricinus communis L.) genotypes and their feeding values on the rearing performance of Eri Silkworm (Samia cynthia ricini Boisduval) (Lepidoptera: Saturniidae) at Tepi, southwest Ethiopia. A total of ten castor genotypes were evaluated in a randomized complete block design (RCBD), and the suitability of castor genotypes as feed for a mixed strain of Eri-silkworm was also evaluated in a completely randomized des

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21

Tephilla, SJ, K. Sharmili, R. Mohanapriya, B. Balaganesh, and S. Sumaiya Parveen. "Research on the Rainfed Condition of Coimbatore for Castor (Ricinus communis) Based Pulse Intercropping." Journal of Advances in Biology & Biotechnology 28, no. 3 (2025): 175–80. https://doi.org/10.9734/jabb/2025/v28i32079.

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During the rabi season of 2024, a field study was carried out at Karunya Institute of Technology and Sciences to study the castor-based pulse intercropping under rainfed conditions of Coimbatore, India. Castor was intercropped with pulse crops like cowpea, chickpea, greengram and horsegram were sown in replacement series row ratios of 1:2 and 2:2. The result showed that intercropping greengram and horsegram with castor in a 2:2 ratio increased both the seed yield (917 kg/ha) and stalk yield (900 kg/ha) of castor in comparison to sole castor. Intercropping indices including the castor equivalen

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22

B.D. KOLI, A.N. DESHPANDE, R.N, KATE, and A.R. BANGAR. "Inter- and Intra-cropping of vegetables in castor (Ricinus communis) on Inceptisols of dryland conditions." Indian Journal of Agronomy 49, no. 3 (2001): 154–56. http://dx.doi.org/10.59797/ija.v49i3.5183.

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A field experiment was conducted at Dry Farmmg Research Station, Solapur, during the rainy seasons of 1995-2001, to study creeper and bushy-type vegetable crops in castor (Ricinus communis L.) to find out vegetable crop suitable for intra and intercropping in castor on lnceptisols of dryland conditions. lntercropping of castor + clusterbean [Cyamopsis tetragonoloba (L.) Taub.] in 1 :2 row proportion gave significantly highest monetary returns (Rs 15,3081ha) over rest of the treatments except castor + ridge gourd [Luffa acutangula (L.) Roxb.] intra-cropping system (Rs 13,312lha) which was on a

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23

Wu, Teng, Fanting Kong, Bin Zhang, Qing Xie, Yongfei Sun, and Huayang Zhao. "Research Progress on Castor Harvesting Technology and Equipment." Sustainability 17, no. 13 (2025): 5703. https://doi.org/10.3390/su17135703.

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The harvesting of castor is highly seasonal and labor-intensive, necessitating a reliance on mature mechanical harvesting equipment. Castor harvesting machinery is a weak link in the castor industry chain, severely constraining the development of China’s castor industry. This article elaborates on the current status of the castor industry and the harvesting modes, which mainly include combined harvesting and segmented harvesting. It systematically summarizes the harvesting platforms, cleaning technologies, and shelling technologies of castor harvesting machinery in China and internationally. I

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24

M.K. PORWAL, S.K. AGARWAL, and A.K. KHOKHAR. "Effect of planting methods and intercrops on productivity and economics of castor (Ricinus communis)-based intercropping systems." Indian Journal of Agronomy 51, no. 4 (2001): 274–77. http://dx.doi.org/10.59797/ija.v51i4.5028.

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An experiment was conducted during the rainy season of 2001 and 2002 at Udaipur, to evaluate productivity and economics from intercropping greengram (Vigna radiata L.), blackgram (Vigna mungo L.), clusterbean [Cymopsis tetragonoloba (L.) Taub.] and sesame (Sesamum indicum L.) with castor (Ricinus communis L.) in uniform and paired rows systems of planting. Paired row planting (601120 cm) gave the maximum seed yield (41.84 qlha), castor-equivalent yield (47.50 qlha), land-equivalent ratio (1.52) and monetary advantage, followed by paired row planting at 801160 cm and uniform row planting at 90

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Li, Xiao Ping, Ding Guo Zhou, Si Qun Wang, and Yi Shao. "The Castor Stalk Based Particle Board with Different Resin." Advanced Materials Research 183-185 (January 2011): 1066–70. http://dx.doi.org/10.4028/www.scientific.net/amr.183-185.1066.

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Castor stalk is one of excellent woody materials.which is the byproduct of the castor oil plant. Itwas usually burnt without use at all when the castor seed were harvest. To use this resource, we studied the castor stalk based panel made with different resin including UF, PF and MDI resin. The results show that the properties of castor stalk based particle panel made with UF and MDI resin by certain techniques can reach the requirement of the standard of China expect the castor stalk based particle board with PF resin which will be studied further more.

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26

S, Nivetha, Shakuntala Devi I, Lavanya T, and Aruna K. "Trends in Area, Production and Productivity of Castor in Telangana." Archives of Current Research International 24, no. 6 (2024): 278–85. http://dx.doi.org/10.9734/acri/2024/v24i6785.

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Aims: To analyse the trends in area, production and productivity of castor in Telangana and major erstwhile districts of Telangana. The main purpose of the study is to understand the growth rate of castor in a region of Telangana, as India is the largest exporter of castor oil, which has multiple industrial applications. Methodology: The secondary data of the area, production and productivity of castor from 2001-02 to 2022-23 were collected from the Directorate of Economics and Statistics. The Compound Annual Growth Rate (CAGR) was used to analyse the time-series data of castor. CAGR was calcu

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27

Dutra, Wellison F., Alberto S. de Melo, Alexson F. Dutra, Marcos E. B. Brito, Luanna M. B. Filgueiras, and Carlos H. S. G. Meneses. "Photosynthetic efficiency, gas exchange and yield of castor bean intercropped with peanut in semiarid Brazil." Revista Brasileira de Engenharia Agrícola e Ambiental 21, no. 2 (2017): 106–10. http://dx.doi.org/10.1590/1807-1929/agriambi.v21n2p106-110.

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ABSTRACT To evaluate the photosynthetic efficiency, gas exchange and yield of castor bean intercropped with peanut under Brazilian semiarid conditions, a field experiment was set up with six treatments and four replicates arranged in a randomized block design. The experiment consisted of the cultivation of castor bean ‘BRS Energia’ in a monocrop system and intercropped with peanut ‘BR 1’. One treatment was formed by monocropped castor bean and the others by the castor bean intercropped with peanut with different intercrop establishment times, i.e. peanut sowing times (0, 10, 15, 20 and 25 days

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Cao, Yu Hua, and Xiao Yan Guo. "Castor Capsule Sheller Key Component Design and Experimental Research." Advanced Materials Research 455-456 (January 2012): 222–27. http://dx.doi.org/10.4028/www.scientific.net/amr.455-456.222.

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This study developed by double rollers castor capsule their shell machine key components out the design and mechanics analysis. Builds force and deformation of the mathematical model: when castor capsule in force, and rollers deformation enables delta R, two of the gap between rollers and rolling Angle, castor capsule diameter and rubber roller diameter relevant, using mathematical software MATLAB) calculations. The positive pressure P size with rolling Angle, castor capsule diameter and rubber roller diameter, clearance changes. As the rollers speed increase, castor capsule stripping net rate

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K GANGADHAR, J S YADAV, and ANIL KUMAR YADAV. "Performance of castor-based intercropping in semi-arid zone of Haryana." Journal of Oilseeds Research 40, no. 4 (2024): 207–11. http://dx.doi.org/10.56739/3rwa1y69.

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To enhance the productivity of castor per unit area and over time, a study was conducted during the kharif 2020-21 season at the Regional Research Station, CCS HAU, Bawal,. The study aimed to evaluate the compatibility, production potential, and optimal row proportions of component crops in intercropping systems involving castor. The field investigation was carried out to identify suitable intercrops for maximizing castor yield and analyse the economic viability of various treatments under two different row spacing for castor: 150 cm and 200 cm. The results indicated that the highest castor se

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Salihu, B. Z., J. N. Eze, O. B. Apuyor, et al. "Germplasm Collection and Stakeholder Identification for Castor (Ricinus communis L.) in Nigeria." BADEGGI JOURNAL OF AGRICULTURAL RESEARCH AND ENVIRONMENT 4, no. 2 (2022): 61–71. http://dx.doi.org/10.35849/bjare202202010.

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Castor (Ricinus communis L.) is a versatile industrial crop with little research preference in Nigeria. In this study, exploration on germplasm collection and stakeholder identification for castor was carried out, in four States (Kogi, Kwara, Osun and Oyo) of Nigeria. The exploration was initially carried out in 2013 and updated on stakeholders’ identification in 2019. The aim of the study was to collect/assemble the available castor germplasm and appraise the stakeholders in the major production areas of Nigeria. Information on germplasm sample, production indices, the value chain actors and

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B.S. PARMAR, N.I. PATEL, BRIJAL R. PATEL, JAYDIP MAKWANA, and FORAM K. PATEL. "Effective management practices for enhancing castor (Ricinus communis) productivity in dryland agriculture." Indian Journal of Agronomy 67, no. 2 (2023): 180–85. http://dx.doi.org/10.59797/ija.v67i2.116.

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A field experiment was conducted during rainy (kharif) season of 2016, 2017 and 2018 at Centre for Natural Resources Management, Sardarkrushinagar Dantiwada Agricultural University, Sardarkrushinagar, to study the effect of land configurations and mulching on productivity and rainwater-use efficiency of castor (Ricinus communis L.). The experiment was laid out in a randomized block design with 4 replications in loamy sand soil, having goodinfiltration capacity. The treatment comprised, viz. control (conventional method), raised-bed method, ridge and furrow method, ditch method, conventional me

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Karina, Myrtha, Lucia Indrarti, Rike Yudianti, and Indriyati. "Effect of Castor Oil Impregnation on the Physical and Mechanical Properties of Bacterial Cellulose." Polymers from Renewable Resources 3, no. 1 (2012): 13–26. http://dx.doi.org/10.1177/204124791200300102.

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The effect of castor oil on the physical and mechanical properties of bacterial cellulose is described. Bacterial cellulose (BC) was impregnated with 0.5–2% (w/v) castor oil (CO) in acetone–water, providing BCCO films. Scanning electron micrographs revealed that the castor oil penetrated the pores of the bacterial cellulose, resulting in a smoother morphology and enhanced hydrophilicity. Castor oil caused a slight change in crystallinity indices and resulted in reduced tensile strength and Young's modulus but increased elongation at break. A significant reduction in tensile strength and Young'

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Grichar, W. James, Peter A. Dotray, and Calvin L. Trostle. "Castor (Ricinus communisL.) Tolerance to Postemergence Herbicides and Weed Control Efficacy." International Journal of Agronomy 2012 (2012): 1–5. http://dx.doi.org/10.1155/2012/832749.

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Potential US castor production is limited due to only one labeled herbicide (trifluralin). Field studies were conducted at two Texas locations during 2008 and 2009 to evaluate postemergence herbicides for castor tolerance and weed control efficacy. Clethodim and fluazifop-P-butyl caused no castor stunting while acifluorfen, bentazon, imazethapyr, and lactofen caused stunting which ranged from 5 to 46%. Imazapic and 2,4-DB caused the greatest stunting (44 to 99%) and resulted in castor yields of 0 to 45% of the untreated check. Acifluorfen, imazapic, imazethapyr, lactofen, and 2,4-DB controlled

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Severino, Liv S. "Studies on the Germination and Emergence of Castor Seedlings." Seeds 3, no. 2 (2024): 251–68. http://dx.doi.org/10.3390/seeds3020019.

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Castor (Ricinus communis) is an oilseed usually cultivated in tropical and semi-arid conditions. The slow and uneven germination of castor seed is causing poor crop establishment and reduced seed yield. This series of studies investigated several factors influencing the time for castor seed germination and seedling emergence. Studies were made on the effect of seed coat permeability to water and the influences of temperature, morphology, and the hormone gibberellin. The best temperature for castor seed germination was near 31 °C, and the seed coat was permeable to water. The mechanical resista

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Maia Júnior, S. O., R. S. Ferreira, L. F. Figueredo, J. R. Andrade, and J. P. Pedroza. "Chlorophyll fluorescence in castor bean fertilized with castor cake and nickel." Scientific Electronic Archives 13, no. 4 (2020): 6. http://dx.doi.org/10.36560/1342020908.

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The objective of this work was to evaluate the chlorophyll fluorescence of castor bean in response to fertilization with castor bean and nickel. The experiment was carried out in a protected environment at the Empresa Brasileira de Pesquisa Agropecuária, in the city of Campina Grande, Brazil. The experimental design was completely randomized, in factorial 4x4, with four doses of castor cake: 0; 1.0; 2.0 and 3.0 t ha-1 and four concentrations of Nickel: 0; 4.0; 8.0 and 12.0 mg L-1, with four replicates. At 60 and 85 days of cultivation was evaluated the chlorophyll fluorescence of the castor be

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Ogah, Ogah Anselm, Mbam Nwabueze Joseph, Ojukwu Uju Pauline, and Francis Okemini Ohoke. "Development of Green Composites Based on Castor Bean Shell (Ricinus communis) as Filler in Epoxy Resin Polymer." Journal of Fibers and Polymer Composites 3, no. 1 (2024): 1–19. http://dx.doi.org/10.55043/jfpc.v3i1.156.

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The present study was carried out to develop composites using waste castor bean shell (CBS) as a filler and epoxy resin as a matrix. The composites were produced by varying the weight fractions of filler in the range of 5 to 35 wt%. The effects of castor bean shell filler weight percentages (0, 5, 10, 15, 20, 25, 30 and 35) on the tensile, flexural, impact and hardness properties of the epoxy/castor bean shell composites were evaluated using universal testing machine, hardness tester and scanning electron microscopy (SEM). The study revealed that the tensile strength, tensile modulus, flexural

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Puspitasari, Santi, and Adi Cifriadi. "PEMBUATAN BAHAN PELUNAK ALAMI UNTUK KOMPON KARET MELALUI REAKSI HIDROGENASI MINYAK JARAK CASTOR." Jurnal Penelitian Karet 32, no. 1 (2014): 56. http://dx.doi.org/10.22302/jpk.v32i1.151.

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Bahan pelunak karet merupakan salah satu bahan kimia yang ditambahkan saat pembuatan kompon untuk melunakan karet sehingga memudahkan pencampuran dan mempersingkat waktu pengkomponan. Minyak jarak castor termodofikasi berpeluang dikembangkan sebagai bahan pelunak karet alami yang dapat mensubstitusi bahan pelunak berbasis minyak bumi. Pada penelitian ini dipelajari pembuatan bahan pelunak karet alami dari minyak jarak castor melalui reaksi hidrogenasi. Tahapan dalam penelitian mengikuti alur berikut : 300 ml minyak jarak castor ditambah dengan N2H4 55% dan H2O2 42% pada berbagai konsentrasi se

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Landoni, Michela, Greta Bertagnon, Martina Ghidoli, Elena Cassani, Fabrizio Adani, and Roberto Pilu. "Opportunities and Challenges of Castor Bean (Ricinus communis L.) Genetic Improvement." Agronomy 13, no. 8 (2023): 2076. http://dx.doi.org/10.3390/agronomy13082076.

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Castor bean (Ricinus communis L.) originated in East Africa and then diffused to warm-temperate, subtropical, and tropical regions of the world. The high lipid content in the castor beans is extracted for use in pharmaceutical and industrial applications. The castor oil lipid profile is naturally composed of 90% ricinoleic acid and the remaining 10% is mainly composed of linoleic, oleic, stearic, and linolenic fatty acids. The highly toxic compound ricin within the seeds is insoluble in oil, making castor oil free from this toxin and safe to use for industrial and cosmetic applications. Among

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Kashyap, Abhishek, and I. R. Delvadiya. "Advancements in Breeding Strategies for Enhancing Wilt and Root Rot Resistance in Castor (Ricinus communis L.): A Comprehensive Review." International Journal of Environment and Climate Change 13, no. 9 (2023): 2993–3008. http://dx.doi.org/10.9734/ijecc/2023/v13i92539.

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Castor (Ricinus communis L.) is an economically important oilseed crop cultivated worldwide for its versatile uses in various industries. However, the cultivation of castor is challenged by wilt and root rot diseases caused by fungal pathogens, leading to significant yield losses. Enhancing wilt and root rot resistance in castor is crucial for sustainable and productive cultivation. This review explores advancements in breeding strategies for enhancing resistance against these diseases through various approaches along with introduction to castor cultivation and the challenges posed by wilt and

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BASITH, M. A., and SHAIK MOHAMMAD. "Effect of intercropping millets, pulses and oilseeds on yield and economics of castor (Ricinus communis) under rainfed conditions." Indian Journal of Agricultural Sciences 82, no. 10 (2012): 903–6. http://dx.doi.org/10.56093/ijas.v82i10.24195.

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A field experiment was conducted at NAARM during kharif 2007 and 2008 to find out suitable intercrop to be planted in castor under rainfed conditions. There were six intercrops, viz sorghum, pearl millet, greengram, blackgram, soybean and sunflower tested under two planting geometries of the base crop castor. The results of the experiment showed that the intercropping of two rows of blackgram between the uniform rows of castor produced additional yield of 338 and 266 kg/ha without reducing the yield of castor during the two years respectively. The intercropping of two rows of blackgram or gree

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Gana, A. K., and Baba Bida Alhaji. "Determination of Number of Manual Hoe Weeding for Optimal Yield of Castor (Ricinus communis L., Euphorbiaceae) in Nigeria." Global Journal Of Botanical Science 2, no. 1 (2014): 21–25. http://dx.doi.org/10.12974/2311-858x.2014.02.01.3.

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Weeds are very detrimental to castor plant as castor plant emergence is slow. The need to determine for specific number of manual hoe weeding needed for the achievement of effective and affordable weed control for the realization of optimal yield of castor becomes very important in Nigeria. The experiment was established on the upland castor experimental field of the National Cereals Research Institute, Badeggi in 2011 and 2012 wet seasons. Three hoe weeding regimes including weeding at 1month after planting (MAP), weeding at 1&2MAP and weeding at 1,2 and 3MAP were evaluated along with the

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Li, Feng Juan, Chang Lu Wang, Dong He, et al. "Evaluation of Genetic Diversity in Castor (Ricinus communis L.) using RAPD Markes." Advanced Materials Research 343-344 (September 2011): 981–87. http://dx.doi.org/10.4028/www.scientific.net/amr.343-344.981.

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RAPD markers are used to study the genetic diversity of the main planting on 37 castor varieties widely cultivated in china according to the oil content and other characteristic of different castor varieties. Genetic distance of 37 Chinese castor varieties is studied by RAPD markers analysis. RAPD analysis shows that a total of 122 bands are amplified from random primers of 20 S series, including 71 polymorphic bands with polymorphic rate of 58.20%. 37 castor beans are divided into four major groups in the phylogenetic tree. One castor germplasm is included in1, 2, 3 groups respectively, and t

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McKeon, T. A., G. Q. Chen, and J. T. Lin. "Biochemical aspects of castor oil biosynthesis." Biochemical Society Transactions 28, no. 6 (2000): 972–74. http://dx.doi.org/10.1042/bst0280972.

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Castor oil is 90% ricinoleate (12-hydroxy-oleate) and has numerous industrial uses. Components of castor bean (Ricinus communis L.) pose serious problems to processors. We are evaluating two complementary approaches to providing a safe source of castor oil.

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Kim, HyokChol, Pei Lei, Aizhi Wang, et al. "Genetic Diversity of Castor Bean (Ricinus communis L.) Revealed by ISSR and RAPD Markers." Agronomy 11, no. 3 (2021): 457. http://dx.doi.org/10.3390/agronomy11030457.

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Castor (Ricinus communis L.), known as castor oil plant or castor bean, is a non-edible oilseed crop. In the present study, the genetic diversity among 54 samples (3 wild and 51 cultivated) collected worldwide was evaluated using inter-simple sequence repeats (ISSRs) and random amplified polymorphic DNA (RAPD) markers. A total of 9 ISSR primers produced 83 high-resolution bands with 61 (74.53%) as polymorphic. The percentage of polymorphic bands per primer and the genetic similarity coefficient ranged from 54.55% (UBC-836) to 100% (UBC-808) and from 0.74 to 0.96, respectively. A total of 11 ou

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P, Mangammal, and Sri Devi G. "Influence of Artificial Diet on Larvae of Eri Silkworm, Samia cynthia ricini Boisduval." Madras Agricultural Journal 99, JUNE (2012): 390–93. http://dx.doi.org/10.29321/maj.10.100095.

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An Artificial Diet composed of castor leaf powder (11.5 g), parched soybean powder (1.0 g), sucrose (1.0 g), agar-agar (1.5 g), inhibitor solution (5 ml) and water (20 ml) was evaluated against eri silkworm larvae. Castor fed eri silkworms were maintained as control for comparison. Larval weight was significantly maximum in eri silkworms fed with artificial diet upto first instar which was followed by feeding of eri silkworms on artificial diet upto second instar + castor leaves from upto fifth instar and feeding of eri silkworm on artificial diet upto third instar + castor during remaining in

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Yu, Haoyong, Matthew Spenko, and Steven Dubowsky. "Omni-Directional Mobility Using Active Split Offset Castors." Journal of Mechanical Design 126, no. 5 (2004): 822–29. http://dx.doi.org/10.1115/1.1767181.

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An omni-directional mobility platform design concept using two active split offset castors (ASOC) and one or more conventional castors is presented. An ASOC module consists of two coaxial conventional wheels driven independently and connected to the platform via an offset link. The kinematics and implementation of the omni-directional platform is described and analyzed. Particular attention is paid to the system performance on uneven floors. The fundamental mechanics of the ASOC wheel scrubbing, which is critical to system wear and energy use, is analyzed and compared to conventional active ca

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Li, Zhenbo, Jiapin Chen, and Jianzhi Feng. "Design of an omni-directional mobile microrobot (OMMR-I) for a micro-factory with 2 mm electromagnetic micromotors." Robotica 23, no. 1 (2005): 45–49. http://dx.doi.org/10.1017/s0263574704000499.

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In this paper, the design and control of an omni-directional mobile microrobot are described for micro-assembling in a micro-factory. A unique locomotion mechanism composed of three special castors units is proposed. The castor consists of two coaxial conventional wheels, connected to the chassis and connected with each other by a set micro-gears. The microrobot is approximately 8 mm in length, 6 mm in width and 6 mm in height. Its kinematics and characteristics are analyzed. Experimental results from a prototype of a microrobot are presented, which demonstrates the feasibility of building an

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Kouakou, Yadom Y. F. R., Kouamé D. Kra, and Hortense Atta Diallo. "Effects of Two-Dried Castor Leaf Formulations on the Population Dynamics and Pathological Activities of Root-Lesion and Root-Knot Nematodes on Water Yam." International Journal of Plant & Soil Science 35, no. 14 (2023): 33–41. http://dx.doi.org/10.9734/ijpss/2023/v35i143018.

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The pathological activities of plant-parasitic nematodes affect the marketable value of yam tubers. This study intends to evaluate the nematicidal effects of dried castor leaf powder and dried castor leaf extract on root-lesion and root-knot nematodes under field conditions. Trials were conducted in the Autonomous District of Yamoussoukro in Côte d’Ivoire during the 2015 and 2016 growing seasons. Before yam seed planting, dried castor leaf powder, dried castor leaf extract (suburbs of Abidjan), and carbofuran (Callivoire S.A., Abidjan) were applied at the top of mounds in a randomized complete

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Smith, Richard Langham, Rameau, Les Art Florissants, et al. "Castor et Pollux." Musical Times 134, no. 1810 (1993): 718. http://dx.doi.org/10.2307/1002952.

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PIAMPHONGSANT, THADA. "Phenol-Castor Oil." Dermatologic Surgery 32, no. 5 (2006): 611–17. http://dx.doi.org/10.1097/00042728-200605000-00002.

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