Corchorus olitorius

About: Corchorus olitorius is a research topic. Over the lifetime, 638 publications have been published within this topic receiving 5250 citations. The topic is also known as: Mulukhiyah & Nalta jute.

Integrated weed management in jute (Corchorus olitorius)

Abstract: An experiment was conducted at Barrackpore during 2003–2005 to find out suitable eco-friendly and remunerative integrated weed-control approaches for jute cv ‘JRO 524’ (‘Navin’). Cultural, organic and integrated chemical weed-control methods were found better than conventional manual weeding twice. In cultural method, smothering of weeds by leafy vegetable mixtures [red amaranth (Amaranthus tricolor L., cv ‘Jabakusum’), white amaranth (Amarantus spp.) and summer radish (Raphanus sativus L. cv ‘Paus mula’] in jute, reduced the dry matter of weeds up to 45% when the field was dominated by grasses and broad-leaf weeds. This was followed by two manual weedings which gave 3.57 t/ha jute fibre (along with 2.9 t/ha red amaranth, 0.6 t/ha white amaranth and 0.7 t/ha summer radish, respectively). The organic approach, rice straw mulch @ 10 t/ha and mixed cropping with same vegetables, followed by one manual weeding produced 3.9 t/ha jute fibre (1.15, 0.64 and 0.94 t/ha red and white amaranth and summer radish, respectively). It reduced the dry matter of weeds by 68 to 82%. In integrated chemical approach, spray of quizalofop ethyl (DT50 < 1d) @ 60 g/ha + dhanuvit @ 0.5 to 0.6 l/ha (adjuvant) at 21 DAE combined with 1 hand weeding produced 3.87 t/ha jute fibre. The benefit: cost ratio from conventional, cultural, organic and chemical approaches was 1.50, 1.57, 2.19 and 1.66 respectively. The residue of quizalofop ethyl was found below the detectable limit (0.84 to 4.2 ppm) within 8 days of its application.

Thermal Decomposition Behavior Study of Two Agricultural Solid Wastes for Production of Bio-Fuels by Pyrolysis Technology

Abstract: In this study pyrolysis kinetics of jute stick (white jute: Corchorus capsularis; tossa jute: Corchorus olitorius) and tamarind (Tamarindus indica) seed available in Bangladesh have been investigated thermogravimetrically in a nitrogen atmosphere at heating rates of 10 and 60°C/min over a temperature range of 30 to 800°C. The two biomass solid wastes exhibited similar behaviors in that, the weight loss region is shifted to a higher temperature range and the weight loss rate is increased with increasing heating rate. The percentage of total weight loss is higher for jute stick and is lower for tamarind seed. The overall rate equation for the two biomass wastes has been modeled satisfactorily by one simplified equation from which the kinetic parameters of unreacted materials based on the Arrhenius form can be determined. The predicted rate equation compares fairly well with the measured TG and DTG data.

Determination of the Anti-nutrient Composition of Ocimum gratissimum, Corchorus olitorius, Murraya koenigii Spreng and Cucurbita maxima

Abstract: The present study investigates the anti-nutrient composition of Ocimum gratissimum, Corchorus olitorius, Murraya koenigii Spreng and Cucurbita maxima following standard methods. Anti-nutritional factors are chemical substances which act to reduce nutrient intake, digestion, absorption and utilization of nutrients which may accumulate in the body to toxic level if the diet is not varied. The qualitative analysis revealed the presence of flavonoids, cardiac glycosides, alkaloids, tannins and phenols in the plant leaves using methanol, ethanol, and petroleum ether as extraction solvents except for saponins in which water was used as the extraction solvent. The differences in mean values were statistically significant at p < 0.05. The highest level of anti-nutrients were found in the following order: flavonoids (7.20 ± 0.15 %) in Cucurbita maxima; cardiac glycosides (13.01±0.03 %) in Ocimum gratissimum; alkaloids (8.82 ± 0.08 %) in Ocimum gratissimum; phytates (0.06 ± 0.00 %) in Corchorus olitorius; haemaglutinins (1.06 ± 0.00 mg/l) in Cucurbita maxima; saponins (9.26 ± 0.20 %) in Cucurbita maxima; tannins (1.45 ± 0.03 %) in Corchorus olitorius; oxalates (1.07 ± 0.07 %) in Murraya koenigii; and phenols (0.68 ± 0.02 mg/l) in Corchorus olitorius. However, the level of anti-nutrients in these plant leaves falls within safe level but should be consumed with care to prevent over-accumulation.

Comparative Effects of Abelmoschus esculentus (L) Moench (Okro) and Corchorus olitorius L (Jew Mallow) on Soil Contaminated with Mixture of Petroleum Products

Abstract: The comparative effects of Abelmoschus esculentus and Corchorus olitorius on soil contaminated with mixture of petroleum products were evaluated in this study. The pH, moisture, organic matter, microbial population and total petroleum hydrocarbon of the soils at the beginning and the end of the study were evaluated. Growth of A. esculentus led to loss of more TPH from the soil than the growth of C. olitorius. The growth of A. esculentus increased soil alkalinity and the soil moisture content more than that of C. olitorius. More bacteria and fungi were isolated from soil that had A. esculentus than from soil that had C. olitorius. Significant differences were noticed between the impacts of A. esculentus and that of C. olitorius on the soil contaminated with mixture of petroleum (p<0.05, p<0.01, p<0.001). The findings in this study show that A. esculentus has better ability to remediate petroleum contaminated soils than C. olitorius. Since both crops are easily propagated and readily grow in most soils, they can be very useful in combating the problems associated with contamination of soil with petroleum products.