jatropha curcas
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2022 ◽  
Vol 9 ◽  
Author(s):  
T. M. I. Riayatsyah ◽  
A. H. Sebayang ◽  
A. S. Silitonga ◽  
Y. Padli ◽  
I. M. R. Fattah ◽  
...  

This article looks at the national and global actors, social networks, and narratives that have influenced Jatropha’s worldwide acceptability as a biofuel crop. Jatropha Curcas is a genus of around 175 succulent shrubs and trees in the Euphorbiaceae family (some of which are deciduous, such as Jatropha Curcas L.). It’s a drought-tolerant perennial that thrives in poor or marginal soil and produces a large amount of oil per hectare. It is easy to grow, has a fast growth rate, and can generate seeds for up to 50 years. Jatropha Curcas has been developed as a unique and promising tropical plant for augmenting renewable energy sources due to its various benefits. It is deserving of being recognised as the only competitor in terms of concrete and intangible environmental advantages. Jatropha Curcas is a low-cost biodiesel feedstock with good fuel properties and more oil than other species. It is a non-edible oilseed feedstock. Thus it will have no impact on food prices or the food vs fuel debate. Jatropha Curcas emits fewer pollutants than diesel and may be used in diesel engines with equivalent performance. Jatropha Curcas also makes a substantial contribution to the betterment of rural life. The plant may also provide up to 40% oil yield per seed based on weight. This study looks at the features characteristics of Jatropha Curcas as biodiesel feedstock and performance, and emissions of internal combustion engine that operates on this biodiesel fuel.


Author(s):  
Araceli Guadalupe Romero‐Izquierdo ◽  
Claudia Gutiérrez‐Antonio ◽  
Fernando Israel Gómez‐Castro ◽  
Salvador Hernández

OALib ◽  
2022 ◽  
Vol 09 (01) ◽  
pp. 1-6
Author(s):  
Matei Mselle ◽  
Aisa Shayo ◽  
Ronald Mbwasi ◽  
Phillip Mrindoko ◽  
Elise Kimambo ◽  
...  

2021 ◽  
Vol 17 (3) ◽  
pp. 137-143
Author(s):  
Bushra Moon ◽  
Mahwish Razzaq ◽  
Muhammad Haseeb ◽  
Sania Iftikhar ◽  
Marriyam Mushtaq ◽  
...  

Store grain insect pests such as Lesser grain borer (Rhyzopertha dominica) is a key feeder and cause substantial weight loss of wheat during storage. Present study was planned to evaluate insecticidal, repellent and growth regulator potential of botanical extracts of two plants Jatropha curcas and Linum usitatissimum along with Spinetoram against Rhyzopertha Dominica. This study was conducted at the Department of Entomology, University of Agriculture, Faisalabad (UAF) Grain Research, Training, and Storage Management Cell. Each treatment with three replication of 5%, 10%, and 15% concentrations of plant extracts and 100ppm, 200ppm, and 300ppm concentrations of insecticide were used against the adults of R. dominica by using Complete Randomized Design. Insect mortality was taken after 24, 48, and 72 hours after treatment. Data of growth regulation data was observed after 30 and 60 days. Data was analyzed by statistic 8.1 software for analysis of variance at 5% level of significance and treatment means was compared with the help of Tukey's Honestly Significant Difference (THSD) test. After 72 hours, Spinetoram showed maximum percent mortality (84%) followed by J. curcas (19.17%) and L. usitatissimum (12.28%) at their higher concentrations rate. Among treatments, after 60 days of exposure, Spinetoram was proved to be more effective against the R. dominica with maximum growth inhibition (70%) as compared to J. curcas (44%) and Linseed (28%). Overall the results indicated that these plant extracts and Spinetoram can be used as efficient alternatives of synthetic chemicals for management of stored grains insect pests.


2021 ◽  
Vol 17 (2) ◽  
pp. 132-138
Author(s):  
IGN Putra Dermawan ◽  
◽  
Intan Kemala Dewi ◽  
I Nyoman Gede Juwita Putra ◽  
◽  
...  

Introduction:Recurrent aphthous stomatitis (RAS), also known as canker sores, is an inflammation that occurs in the oral mucosa. Frangipani leaf extract and jatropha leaf extract are known to contain saponins, tannins and flavonoids that function as wound healers and antimicrobials. Purpose:Determine whether the administration of frangipani leaf extract (Plumeria acuminata Ait) is more effective in curing recurrent aphthous stomatitis than jatropha leaf extract (Jatropha curcas L). Materials and Methods: The method used is experimental study with a purposive sampling of 30 people. frangipani leaf extract (Plumeria acuminata Ait) and jatropha leaf extract (Jatropha curcas L) were applied to each of 15 samples. Statistical calculations using the Independent T-test. Result and Discussion: The results showed that the mean difference in diameter reduction of recurrent aphthous stomatitis in the first sample group of frangipani leaf extract (Plumeria Acuminata Ait) was 1.13 mm, while in the second sample group Jatropha leaf extract (Jatropha curcas L) was 0.47 mm. From the results of the Independent T-Test test on frangipani leaf extract (Plumeria acuminata Ait) obtained a sig value of 0.002 (p<0.05) and jatropha leaf extract (Jatropha curcas L) of 0.002 (p<0.05), indicating that there is the difference between the use of frangipani leaf extract (Plumeria acuminata Ait) and jatropha leaf extract (Jatropha curcas L) in the treatment of recurrent aphthous stomatitis. Conclusion: frangipani leaf extract (Plumeria acuminata Ait) was more effective in curing recurrent aphthous stomatitis (SAR) than jatropha leaf extract (Jatropha curcas L)


2021 ◽  
Vol 14 (1) ◽  
pp. 195-206
Author(s):  
Z. Abdullahi ◽  
A.A. Abdulrahman

Samples of Jatropha curcas, a non-edible biodiesel plant, which tolerates harsh environments was collected from an industrial area with high anthropogenic activities (Challawa Industrial area, Kano, Nigeria)and sorted into leaves, stems and roots. The aim is to assess the potentials of Jatropha curcas in accumulation and translocation of six Potentially Toxic Elements (PTEs) (Zn, Cu, Cd, Cr, Pb and Ni) from the soil media. Atomic Absorption Spectroscopy (AAS) was used to assess the concentrations. The bioaccumulation/ transfer of metals from roots to shoots and from soil to roots were evaluated in terms of translocation (TF) and bioconcentration factor (BCF). TF values of 1.02, 4.92, 2.68, 3.73, 1.5 and 3.19 for Zn, Cu, Cd, Cr, Pb and Ni respectively indicate that J. curcas was efficient in translocation of PTEs from roots to shoots. This is an indication that the plant is therefore suitable for phytoextraction of Zn, Cu, Cd, Cr, Pb and Ni. But CF value of 0.66 and 0.70 for Cu and Pb on the other hand shows that J. curcas is less able to translocate these two metals (Cu and Pb) indicating ineffective transfer. This show that J. curcas may be suitable a candidate for phytostabilization of Copper and lead in contaminated soils in the study area.


Nativa ◽  
2021 ◽  
Vol 9 (5) ◽  
pp. 544-550
Author(s):  
Ana Paula Moura da Silva ◽  
Liliana Rocivalda Gomes Leitão ◽  
Linda Brenna Ribeiro Araújo ◽  
Jonas Cunha Neto ◽  
Cândida Hermínia Campos de Magalhães Bertini

O pinhão manso (Jatropha curcas L.) é uma euforbiácea utilizada na produção de biodiesel. A espécie possui base genética estreita o que dificulta o processo de lançamento de cultivares. Caracterizar precocemente os genótipos constitui etapa importante no melhoramento da cultura. Objetivou-se com este estudo realizar uma seleção precoce em caracteres morfoagronômicos, predizer o progresso genético de tais caracteres e indicar genitores potenciais para obtenção de progênies. O delineamento experimental utilizado foi o de blocos casualizados com 26 tratamentos e três repetições. As variáveis morfoagronômicas foram analisadas via modelos mistos e o progresso genético obtido pela seleção direta, indireta e índices de seleção. A dissimilaridade genética foi determinada pela distância de Mahalanobis, com agrupamento hierárquico UPGMA e coeficiente de correlação cofenética adquirido de 1.000 permutações. As estimativas demonstraram variabilidade genética, com identificação de genótipos juvenis promissores. Os genótipos JCCE034, JCCE014 e JCCE103 apresentam melhores progressos genéticos e os genótipos JCCE036 e JCCE86 apresentam maiores divergências genéticas, formando clusters individuais. Os genótipos de pinhão-manso são promissores na seleção precoce e possuem satisfatórios ganhos com a seleção para os caracteres avaliados. Os genótipos apresentam boa capacidade para compor grupos de genitores em cruzamentos direcionados, constituindo populações-base no melhoramento de J. curcas. Palavras-chave: Jatropha curcas; diversidade genética; ganhos com a seleção; índices de seleção.   Genetic progress and early selection of juvenile physic nut genotypes   ABSTRACT: Physic nut (Jatropha curcas L.) is a euphorbia used in the production of biodiesel. The species has a narrow genetic base which the process of launching cultivars is difficult. Early characterization of the genotypes is an important step in crop breending. The aims of this study were to perform an early selection in morpho-agronomic traits, to predict the genetic progress of such traits and to indicate potential parents for progeny development. The experimental design used for the randomized blocks with 26 treatments and three replications. The morpho-agronomic traits were analyzed via mix models and the genetic progress added by direct, indirect selection and selection indexes. The genetic dissimilarity was provided by the Mahalanobis distance, with UPGMA hierarchical grouping and co-phenetic correlation coefficient acquired from 1,000 permutations. The indicators demonstrated genetic variability, with the identification of promising juvenile genotypes. The genotypes JCCE034, JCCE014 and JCCE103 show better genetic progress and the genotypes JCCE036 and JCCE86 show greater genetic divergences, forming individual clusters. J. curcas genotypes are promising in early selection and have satisfactory genetics gains for the traits. The genotypes have a good ability to compose groups of parents in targeted crosses, constituting base populations in the improvement of J. curcas. Keywords: Jatropha curcas; genetic diversity; selection gains; selection indexes.


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