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Showing papers on "Corchorus olitorius published in 2011"


Journal ArticleDOI
TL;DR: Raw and cooked pumpkin leaves had the highest index of nutritional quality for protein, while cowpea leaves was the poorest source of minerals compared to the other leafy vegetables.

126 citations


Journal ArticleDOI
11 Jul 2011-Genome
TL;DR: In comparison to other economically important crop species, the genome sizes of C. olitorius and C. capsularis are much smaller, and therewith closer to that of rice, which will be of general advantage for any efforts into genomics or sequencing approaches of these species.
Abstract: In this study, we report genome size variations in Corchorus olitorius L. (Malvaceae s.l.), a crop species known for its morphological plasticity and broad geographical distribution, and Corchorus ...

36 citations


Journal ArticleDOI
TL;DR: The article has been removed from the Orbital journal because its content was previously published in another scientific journal as mentioned in this paper, which was published by the same editor-in-chief of the journal.
Abstract: Sorry, this article has been withdrawn of Orbital journal because its content was previously published in another scientific journal! Dr. Adilson Beatriz Editor-in-Chief of the Orbital – The Electronic Journal of Chemistry

19 citations


Journal ArticleDOI
TL;DR: A two-year field experiment was carried out to determine crop evapotranspiration (ETc) and crop coefficients (Kc) for irrigated bush okra (Corchorus olitorius) at Minna in a tropical sub-humid area of Nigeria between February and April of 2008 and 2009.
Abstract: A two-year field experiment was carried out to determine crop evapotranspiration (ETc) and crop coefficients (Kc) for irrigated bush okra (Corchorus olitorius) at Minna in a tropical sub-humid area of Nigeria between February and April of 2008 and 2009. Eight 4 x 1 m check basins were laid out in a randomized complete block design with two treatments and four replications. The two common local varieties of C. olitorius(Amugbadu and Oniyaya) constituted the treatments. The soil moisture depletion method was used to determine ETc while potential evapotranspiration (ETp) was calculated on a daily basis using Blaney-Morin-Nigeria (BMN) evapotranspiration model developed for Nigerian environmental conditions. Kc values were derived as dimensionless ratios of ETc to ETp on a weekly basis. Across varieties and cropping periods, average weekly ETc ranged from 2.0 to 6.8 mm day-1 while seasonal ETc ranged from 326 to 374 mm, withAmugbadu having significantly higher seasonal ETc (P≤0.01) in each cropping period, presumably because of its spreading growth habit. Weekly Kc values rose from a minimum of 0.38 at the initial stage of crop growth to a peak value of 1.05 at the mid-season stage and dropped to 0.40 at the end of the late season stage. Closer spacing of Oniyaya, which has an erect growth habit, is recommended in order to increase its ground coverage, ETc and fresh leaf yield, under sole cropping system. Key words: Corchorus olitorius, Amugbadu, Oniyaya, evapotranspiration, crop coefficients.

15 citations


Journal ArticleDOI
TL;DR: No single character could identify all the varieties individually; however, when used in combination, identity and distinctness of almost all the C. capsularis varieties are found.
Abstract: Thirty two jute (Corchorus olitorius and C. capsularis) varieties, including 25 released/notified and seven of common knowledge, were characterized through distinctness, uniformity and stability (DUS) testing trials for two consecutive years using 17 heritable morphological traits prescribed in the Revised Official DUS Test Guidelines of Jute to enable identification of these varieties and for unambiguous ascertainment of distinctness. Out of 17 traits, 8 were found to be monomorphic, 7 dimorphic and only 2 polymorphic in C. capsularis, while 8 traits were dimorphic and 9 polymorphic among C. olitorius varieties, indicating their potential for varietal characterization. On the basis of this study no single character could identify all the varieties individually; however, when used in combination, identity and distinctness of almost all the C. olitorius varieties and 10 varieties of C. capsularis (Padma, JRC-212, Bidhan Pat-2, D-154, KTC-1, KC-1, JRC-80, Bidhan Pat-3, JRC-7447 and JRC-698) could be established individually. The remaining varieties of C. capsularis could be classified into two groups: early flowering group (JRC-321, UPC-94) and fine fibre group (JRC-4444, Bidhan Pat-1). Hence, morphological characters alone may not suffice for DUS testing of C. capsularis varieties. All the varieties of both species released in India so far albeit professed their uniformity and stability through morphological characterization, but use of biochemical and/or molecular markers along with search for other morphological traits need to be explored for the delineation of C. capsularis varieties.

15 citations



Journal ArticleDOI
TL;DR: In this paper, pyrolysis kinetics of jute stick and tamarind seed were investigated thermogravimetrically in a nitrogen atmosphere at heating rates of 10 and 60°C/min over a temperature range of 30 to 800°C.
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.

12 citations


Journal ArticleDOI
TL;DR: Results indicate a higher level of polymorphism in C. olitorius relative to that in Corchorus capsularis, and the occurrence of such a large number of polymorphic AFLP markers will facilitate preparation of molecular maps and QTL analysis in jute.
Abstract: Amplified fragment length polymorphism (AFLP) analysis was conducted to investigate the level of polymorphism in four jute genotypes including two genotypes (JRC 321 and CMU 010) of Corchorus capsularis (the white jute) and two genotypes (JRO 524 and PPO4) of Corchorus olitorius (the tossa jute). Out of 1024 primer combinations that were tried, as many as 281 combinations of selective primers (13 EcoRI and 64 MseI) were selected, which produced a total of 9092 amplicons, including 752 (8.3%) polymorphic bands in C. capsularis and a total of 8856 amplicons including 1477 (16.7%) polymorphic bands in C. olitorius. The average number of bands/primer combination was 32.3 for C. capsularis and 31.5 for C. olitorius. For C. capsularis, highest polymorphism of 56.6% was shown by primer combination E35M50, while for C. olitorius highest polymorphism of 50% was shown by E41M91. In C. olitorius, 30–50% polymorphism was observed with 27 primer combinations, but in C. capsularis only 3 primer combinations gave this level of polymorphism. Similarly, in C. capsularis <10% polymorphism was detected by 115 primer combinations while in C. olitorius, <10% polymorphism was shown by only 56 primer combinations. These results indicate a higher level of polymorphism in C. olitorius relative to that in C. capsularis. The occurrence of such a large number of polymorphic AFLP markers will facilitate preparation of molecular maps and QTL analysis in jute.

12 citations


Journal ArticleDOI
TL;DR: In this article, a study focused on heavy metals contamination in the vegetable Corchorus olitorius (C.olitorius) leaves, which were collected from two sites, one located on a major highway and the other remotely located from any form of industrial activity and which served as the control site.
Abstract: This study focused on heavy metals (Lead (Pb), Zinc (Zn) and Cadmium (Cd)) contamination in the vegetable Corchorus olitorius (C.olitorius) leaves cultivated along a major road. Samples the vegetable, C. olitorius leaves) were collected from two sites, one of which is located on a major highway and the other remotely located from any form of industrial activity and which served as the control site. These samples were collected at distances of 10, 20 and 30m from the roadside and analyzed for Pb, Zn and Cd content by atomic absorption spectrophotometer. The mean concentration of heavy metals in the studied vegetable with effect to distance from the road was compared with the permissible values given by WHO/FAO. Mean concentration of heavy metal in C. olitorius leaves ranged from 0.013 to 0.310mg/kg, 2.500 to 4.850mg/kg and 0.063 to 0.205mg/kg at 10m, 20m and 30m distances respectively from the road. In all cases, it was observed that the closer the plants were to the road, the higher the heavy metal burden. The result of this study shows that, while the concentration of heavy metals in C. olitorius leaves from the control site remains constant, (i.e. showing no sign of contamination) the concentration of heavy metals in C. olitorius leaves cultivated along major road decreased with an increasing distance from the road.

5 citations


01 Jan 2011
TL;DR: In this article, a study focused on heavy metals contamination in the vegetable Corchorus olitorius (C.olitorius) leaves, which were collected from two sites, one located on a major highway and the other remotely located from any form of industrial activity and which served as the control site.
Abstract: This study focused on heavy metals (Lead (Pb), Zinc (Zn) and Cadmium (Cd)) contamination in the vegetable Corchorus olitorius (C.olitorius) leaves cultivated along a major road. Samples the vegetable, C. olitorius leaves) were collected from two sites, one of which is located on a major highway and the other remotely located from any form of industrial activity and which served as the control site. These samples were collected at distances of 10, 20 and 30m from the roadside and analyzed for Pb, Zn and Cd content by atomic absorption spectrophotometer. The mean concentration of heavy metals in the studied vegetable with effect to distance from the road was compared with the permissible values given by WHO/FAO. Mean concentration of heavy metal in C. olitorius leaves ranged from 0.013 to 0.310mg/kg, 2.500 to 4.850mg/kg and 0.063 to 0.205mg/kg at 10m, 20m and 30m distances respectively from the road. In all cases, it was observed that the closer the plants were to the road, the higher the heavy metal burden. The result of this study shows that, while the concentration of heavy metals in C. olitorius leaves from the control site remains constant, (i.e. showing no sign of contamination) the concentration of heavy metals in C. olitorius leaves cultivated along major road decreased with an increasing distance from the road. @JASEM

3 citations


Journal ArticleDOI
TL;DR: Jute plant harvested the lowest amount of nutrients and added back the highest amount to the soil and contributed to the additions of nutrients by crops followed the following sequence.
Abstract: A field trial was conducted to determine the nutrient uptake, harvest and addition by different crops under jute included and jute excluded cropping sequences. The crops were potato ( Solanum tuberosum L.), jute ( Corchorus olitorius L.), broadcast aus rice and transplanted aman rice ( Oryza sativa L.). The soil of the experimental site represents Melandha soil series under noncalcareous brown floodplain soil (General Soil Type) which belongs to Agro Ecological Zone No. 8 (Young Brahmaputra and Jumuna Floodplain). Experiment was conducted with potato as base crop in rabi season for three consecutive years in the same field. The treatments (cropping patterns) were Potato - Jute - T. aman, Potato - B. aus - T. aman, Potato - Fallow - T. aman, and Fallow - Jute - T. aman. Jute plant harvested the lowest amount of nutrients and added back the highest amount to the soil. Contributions to the additions of nutrients by crops followed the following sequence: for nitrogen jute > B. aus > T. aman > potato; for phosphorus jute > T. aman > B. aus > potato; for potassium jute > B. aus > T.aman > potato, and for sulphur jute > B. aus > T. aman > potato. Key words: Nutrient uptake; Harvest; Addition; Cropping sequence DOI: http://dx.doi.org/10.3329/dujbs.v20i1.8874 Dhaka Univ. J. Biol. Sci. 20 (1): 81-89, 2011 (January)

01 Jan 2011
TL;DR: In this article, the authors constructed a molecular linkage map of jute and locate important qualitative traits, which will provide essential tools for investigating genomic structure and evolution,facilitating QTL mapping,marker-assisted selection and map-based cloning of important gene.
Abstract: 【Objective】Jute(Corchorus olitorius L.) is one of the most economically important crops for fiber production.The present study was aimed to construct a molecular linkage map of jute and locate important qualitative traits,which will provide essential tools for investigating genomic structure and evolution,facilitating QTL mapping,marker-assisted selection and map-based cloning of important gene.【Method】In this study,a population of F2 generation including 187 individual plants was derived from the cross between Corchorus aestuans L.(wild species) and wild leaf jute(cultivated species).A total of 513 sequence-related amplified polymorphisms(SRAP) primer pairs were used in constructing the molecular genetic linkage map and mapping 3 qualitative traits including color of stipule,color of stipe,and color of leaf margin.【Result】This genetic linkage map containing 10 linkage groups(LGs) was constructed using 122 SRAP loci and these 3 morphological markers,the map covered 2 231.9 cM with the average marker interval of 17.86 cM,every linkage group included 2-38 markers.【Conclusion】All the markers are distributed evenly among the linkage groups without clustering of loci.SRAP markers may be a better type of markers in map construction.

13 Sep 2011
TL;DR: It can be concluded that growth and yield performance of pepper can be enhanced in mixture with corchorus at plant population of 100,000 plants per hectare.
Abstract: Field experiment was conducted at the Fadama farm of the University of Agriculture, Abeokuta to determine the effect of intercropping and plant population of Jute mallow (Corchorus olitorius) on the growth and yield performance of hot pepper (Capsicum frutescens). The experiment was laid out using a split plot design. The main plot was cropping system (sole pepper and pepper intercropped with corchorus) and the sub plot was plant population of corchorus (100,000, 200,000 and 400,000 plants per hectare). Data were collected on plant height, number of leaves/plant, leaf area, number of branches, number of flowers and fruits and fruit yield and shoot weight of corchorus. The data were subjected to analysis of variance (ANOVA) using Statistical Analysis System (SAS). The results showed that plant height, leaf area, number of branches, number of leaves, and yield of sole pepper were not significantly (p≤0.05) different from pepper intercropped with corchorus. Number of leaves and leaf area of corchorus showed significant cropping system and plant population interaction. The effect of cropping system was not significant on yield of corchorus. Vegetative and yield performance of corchorus at 400,000 plant population were higher than the population density of corchorus at 100,000 and 200,000 plants per hectare. Land equivalent ratio at 100,000 plant population gave the best yield advantage over 200,000 and 400,000 plant population. It can therefore be concluded that growth and yield performance of pepper can be enhanced in mixture with corchorus at plant population of 100,000 plants per hectare.

01 Jan 2011
TL;DR: The results revealed that root and capsule extracts of Corchorus olitorius highest antibacterial activity.
Abstract: Summary The study was premediated to evaluate a rare specie of Corchorus olitorius for their antibacterial and antifungal activity. The root and capsule extracts of Corchorus species were tested for antibacterial and antifungal activity, the results revealed that root and capsule extracts of Corchorus olitorius highest antibacterial activity.


Journal ArticleDOI
TL;DR: The levels of the hazardous metals (Pb and Cd) in five different leafy vegetable plant samples consumed by Kano inhabitants were investigated and found to be at concentration below the environmental lead action level set by US EPA/WHO.
Abstract: The levels of the hazardous metals (Pb and Cd) in five different leafy vegetable plant samples ( viz: Hibiscus cannabinus, Cassia tora, Vernonia amygdalina, Corchorus olitorius, and Corchorus tridens ) consumed by Kano inhabitants were investigated and found to be at concentration below the environmental lead action level set by US EPA/WHO. Cadmium was not detected in the samples. Low concentration of Pb and absence of Cd in all the plant samples analyzed are clear indication that these may not exhibit toxicity effects due to any of these metals. The consumers are therefore safe from their toxicity effect. Keywords : Lead, Cadmium, Leafy Vegetables, Kano, Nigeria Nigerian Journal of Basic and Applied Science (2011), 19(2): 304-307

01 Jan 2011
TL;DR: In this article, pyrolysis kinetics of jute stick and tamarind seed were investigated thermogravimetrically in a nitrogen atmosphere at heating rates of 10 and 60°C/min over a temperature range of 30 to 800°C.
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.

20 Sep 2011
TL;DR: A field experiment was carried out form January to June, 2011 at the university of Agriculture Abeokuta (70 151 30 251E) to determine the effect of time of introducing jute mallow on the growth and yield of hot pepper (Capsicum frutescens L) as discussed by the authors.
Abstract: Field experiment was carried out form January to June, 2011 at the university of Agriculture Abeokuta (70 151 30 251E) to determine the effect of time of introducing jute mallow on the growth and yield of hot pepper (Capsicum frutescens L) The experiment was laid out in Randomized complete block design (RCBD) in a split plot arrangement with three replicates The main plot was cropping system (sole crop pepper and pepper intercropped with Corchorus) and the subplot was the time of introducing Corchorus with pepper (same time with pepper, two weeks after planting pepper and four weeks after planting pepper) Data were collected on plant height, number of leaves, leaf area, number of branches, number of flower and number of fruit The data were subjected to analysis of variance (ANOVA) using statistical analysis system (SAS) The results showed that plant height, leaf area, number of branches, number of leaves, and yield of sole pepper were not significantly (p≤005) different from pepper intercropped with Corchorus Number of leaves and leaf area of Corchorus showed that there was interaction between cropping system and the time of introducing Corchorus The effect of cropping system was significant on yield of pepper irrespective of the cropping system, vegetative and yield performance of Corchorus Land equivalent ratio of pepper intercrop at the time of introducing Corchorus same time gave the best yield advantage over 2 weeks after introducing Corchorus and 4 weeks after introducing Corchorus respectively It can be concluded that growth and yield performance of pepper can be enhanced in mixture with Corchorus introduced at the same time