An Overview of World Natural Rubber Production and Consumption: An Implication for Economic Empowerment and Poverty Alleviation in Nigeria

Umar, Harun; Giroh, Dengle Yuniyus; Agbonkpolor, N.B.; Mesike, C. S.

doi:10.1080/09709274.2011.11906350

Cited by 17 publications

(15 citation statements)

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“…This implies that during the period under review, the climatic factors in 2013 were the best for rubber latex yield and those of 1983 was worse. This agrees with many studies which states that rubber tree (Hevea brasiliensis) thrive worldwide in the humid tropics with optimum weather conditions of ±28°C mean annual temperature, relative humidity of 67-82.3%, rainfall of 1400-4000 mm distributed over 100-182 days (Kpolo, 1999;RRIS, 2002;Omokhafe and Emuedo, 2006;Rubber Asia, 2006, Umar, et al, 2011).…”

Section: Resultssupporting

confidence: 91%

“…By 1500, Mr. Austin Coate defined rubber latex as a milk-like juice, which is found in the bark of Hevea tree that becomes golden brown and thicker on exposure to air. He called the tree a "CAOUTCHOUC," meaning weeping wood (Ogowewo 1986; Umar, Giroh, Agbonkpolor and Mesike, 2011). It was about the same period also that Priestly discovered that the rubber latex could rub off pencil marks, hence the product is named as RUBBER, (Umar, Giroh, Agbonkpolor and Mesike, 2011 and Willy Verheye, 2011).…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of the Impact of Climatic Factors on Latex Yield of Hevea Brasiliensis

2017

International Journal of Research Studies in Agricultural Scien

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Natural Rubber (NR) is a tree crop originated from South America; mainly cultivated for its latex. The first usage of the latex was to rub off pencil marks; hence the name "Rubber" was coined to the substance. The crop gained global awareness since 1876 and its production became widely spread since the 19 th century. The first and second World wars however posed some challenges to the crop's cultivation and marketing which led to the discovery of synthetic rubber (SR) by a Russian chemist in 1910. The SR competes with NR in usage. Climatic factors are crucial elements that determine the yield of rubber latex as indicated by earlier studies. In this study, a time-series data for 31 years (1983-2013) on statistics of rubber latex yield, temperatures (maximum and minimum), relative humidity (maximum and minimum), rainfall and wind speed were obtained from Tapping and Metrology Units of Rubber Research Institute of Nigeria (RRIN) for analysis. Regression model was used to estimate the specific coefficients of the effects of the seven climatic factors on rubber latex yield in RRIN, Iyanomo, Edo state. The tapping method adopted was half spiral (S/2) and alternate days (d/2) techniques. The results of the findings indicate that R 2 , (0.643) and F-value was 5.928. This implies that the 64.3% of the variation in rubber latex yield in RRIN under the period of review was jointly explained by the independent variables considered in this study (the climatic factors). Specially, the results revealed that Rainfall, Maximum and Minimum Temperature as well as age of rubber plant had positive coefficient, hence were positively correlated with the rubber latex yield, while Wind speed, Maximum and Minimum relative humidity had negative coefficient, thus were inversely correlated with the rubber latex yield in the study area. The study concluded that the need to evaluate the environmental conditions to determine suitable climatic factors for rubber cultivation is paramount; and recommended that whoever wants to go into rubber farming should first endeavour to study the climatic factors of the place and compare with the climatic requirements of rubber available in literature. Planting rubber in marginal climatic requirements of rubber should be experimented first before going into commercial production.

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Section: Resultssupporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Evaluation of the Impact of Climatic Factors on Latex Yield of Hevea Brasiliensis

2017

International Journal of Research Studies in Agricultural Scien

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“…The 3 rd , 4 th and 5 th severe problem identified were inability to distinguish variety (0.60), lack of sufficient saplings (0.49) and lack of technical knowledge (0.36) ( Table 5). Umar et al (2011) identified that the replacement of natural rubber by synthetic rubber, as the major threat in African countries.…”

Section: Problems In Natural Rubber Farmingmentioning

confidence: 99%

Economics of production and marketing of natural rubber (Hevea brasiliensis) in Jhapa, Nepal

Pandey¹,

Dhungana²,

Sharma³

2020

Arch. Agric. Environ. Sci.

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A study was carried to assess the production and marketing status of natural rubber in Jhapa district in 2019, from a random sample of 70 households and 5 traders. Results were drawn using descriptive and inferential statistics employing SPSS and MS-Excel. The average area under natural rubber cultivation was 2.2 bigha and the productive area was 1.21 bigha. The average rubber sheet produced per household was 1167.092 kg and average yield was found to be 958.77 kg/bigha in the study area. The average annual household income from natural rubber was found to be NRs. 233418.57 which contributes 58.54 percent in the total household income. Three marketing channels were identified and the price spread ranged from NRs. 20 to 40. The producers' share in consumers' price ranged from 81.82% to 90.91%. The major production problem identified was the lodging by wind (0.80) and the major marketing problem faced by producers and traders was the absence of grading facility (0.82). Rubber farms were found to be a profitable farm enterprise with a discounted benefit-cost ratio of 1.88. The calculated NPV was 410992.40, IRR was 22% and PBP was 8.52 years respectively denoting the sustainability of rubber cultivation. RRIM 600, RRII 105 and GT1 were the major growing varieties of rubber in the study area. The cost of establishment in the first year (48.702%) is highest compared to the following years. The selling price of latex and sheet was found higher in 2015 and 2016 with a reduction of price in 2017 due to the high import of Indonesian rubber sheet. This research tries to present the general idea on the overall production and marketing status in the study area.

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“…From these requirements, natural rubber (NR) is a potential candidate as the matrix of compliant electrode due to its excellent mechanical properties . Recently, there has been continuing growths in the NR production and utilization . Adding value to NR through fabricated compliant electrodes is one commercial choice based on the NR volume required.…”

Section: Introductionmentioning

confidence: 99%

Durable compliant electrode based on graphene and natural rubber

et al. 2016

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A compliant electrode is a stretchable electronic device that retains good conductivity under stretching or bending. It has been used in various electro‐actuating applications which require large deformations under electrical field. The objective of this work was to fabricate a compliant electrode possessing high electrical conductivity and good mechanical properties. Due to the excellent mechanical properties of natural rubber (NR), it was used as a matrix for the compliant electrode. Graphene was used as a new and innovative conductive filler to provide excellent electrical conductivity. The mechanical properties and electrical properties were investigated by using a rheometer in the tension mode. Both mechanical and electrical properties were improved drastically by introducing graphene into the matrix. The highest electrical conductivity of 0.61 S/cm was obtained from the 35.0 %vol/vol graphene/NR composite, two orders of magnitude higher than that of the commercial compliant electrode. The 5.0 %vol/vol graphene/NR composite was shown and identified here as a promising material for using as a compliant electrode. POLYM. ENG. SCI., 57:129–136, 2017. © 2016 Society of Plastics Engineers

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An Overview of World Natural Rubber Production and Consumption: An Implication for Economic Empowerment and Poverty Alleviation in Nigeria

Cited by 17 publications

References 0 publications

Evaluation of the Impact of Climatic Factors on Latex Yield of Hevea Brasiliensis

Evaluation of the Impact of Climatic Factors on Latex Yield of Hevea Brasiliensis

Economics of production and marketing of natural rubber (Hevea brasiliensis) in Jhapa, Nepal

Durable compliant electrode based on graphene and natural rubber

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