Showing papers on "Corchorus olitorius published in 2015"
TL;DR: The results suggested that under South African conditions, seeds of the eight species will typically germinate optimally as temperatures rise during spring before the occurrence of very hot temperatures in summer.
49 citations
TL;DR: The study found that the primary uptake pathway of Pb and Cd by amaranth is foliar route, while root uptake is the predominant pathway of Zn inAmaranth.
Abstract: Dietary uptake of heavy metals through the consumption of vegetables grown on polluted soil can have serious human health implications Thus, the study presented in this paper investigated the bioaccumulation and associated dietary risks of Pb, Zn, and Cd present in vegetables widely consumed in Nigeria, namely amaranth and jute mallow, grown on soil irrigated with polluted water from Asa River The study found that the soil was polluted with Zn, Pb, and Cd with Pb and Cd being contributed by polluted river, while Zn was from geogenic sources The metal concentration in amaranth and jute mallow varied in the order of Zn > Pb > Cd and Zn > Pb ≈ Cd, respectively Jute mallow acts as an excluder plant for Pb, Cd, and Zn Consequently, the metal concentrations in jute mallow were below the toxic threshold levels Furthermore, non-cancer human health risk of consuming jute mallow from the study site was not significant In contrast, the concentrations of Pb and Cd in amaranth were found to be above the recommended safe levels and to be posing human health risks Therefore, further investigation was undertaken to identify the pathways of heavy metals to amaranth The study found that the primary uptake pathway of Pb and Cd by amaranth is foliar route, while root uptake is the predominant pathway of Zn in amaranth
29 citations
TL;DR: High population of plant- parasitic nematodes was recorded on the vegetable crops cultivated on covenant university farm and molecular characterization of the Meloidogyne species indicates Meloidogicalne incognita as the nematode species associated with the vegetables crops.
Abstract: Vegetable crops are highly susceptible to a wide range of pests and diseases among which are
the root-knot nematodes (Meloidogyne species). Traditionally, identification of Meloidogyne species
had been based on use of morphological characters such as the perennial pattern. In recent times,
accuracy of nematode identification using only morphological tools has been challenged due to
similarities in morphological characters of some nematode species. The aim of this study was to
identify the root-knot nematodes associated with some vegetable crops cultivated on Covenant
University farm, Ota, South-west, Nigeria using molecular tools and to determine the population
densities of Meloidogyne spp. on the selected vegetable crops. Plant-parasitic nematodes were
extracted from soil and roots of Abelmoschus esculentus, Celosia argentea and Core horus olitorius
cultivated on Covenant University farm. The nematode species were identified and counted under
a compound microscope. The molecular characterization of the Meloidogyne species was done using
single adult female nematodes and eggs which were picked out for DNA extraction and amplified
with specie-specific primers through Polymerase Chain Reaction (PCR) and separated on 0.5%
agarose gel. High population of plant- parasitic nematodes was recorded on the vegetable crops
cultivated on covenant university farm. Also significantly higher population (p<0.005) of
Meloidogyne spp. were found in association with C. argentea and Corchorus olitorius than those
recorded on Abelmoschus esculent us from the vegetable farm. The molecular characterization of
the Meloidogyne species from the farm indicates Meloidogyne incognita as the nematode species
associated with the vegetable crops.
15 citations
TL;DR: In this paper, the effects of three types of fertilizers (Municipal solids waste compost, cow dung and chemical fertilizer) on growth characters and leaf yield of Corchorus olitorius under irrigated conditions were evaluated.
Abstract: Objective : The study aimed to evaluate the effects of three types of fertilizers (Municipal solids waste compost, cow dung and chemical fertilizer) on growth characters and leaf yield of Corchorus olitorius under irrigated conditions Methodology and results : A field experiment was conducted in Parakou in the dry season using a randomized complete block design with three factors and twelve treatments: 1) Municipal solids waste Compost (MSWC) at 0, 10, 20 and 30 t.ha -1 ; 2) Cow dung at 0, 10, 20 and 30 t.ha -1 ; Urea fertilizer (46% N) at 0, 50, 100 and 200 kg.ha -1 . The plant height and stem diameter were significantly higher with Compost (20 t/ha) and lowest was recorded in control at all growth stages. The application of compost, cow dung and chemical fertilizer significantly increased the total number of branches at all growth stages. The highest number was recorded in MSWC 20 t.ha -1 as compared to the other treatments. The highest marketable leaves yield was obtained with MSWC at 20 t.ha -1 (8.1 t.ha -1 ) followed by MSWC at 30 t.ha -1 (6.6 t.ha -1 ), cow dung at 30 t.ha-1 (5.4 t.ha -1 ) and urea at 100 kg.ha -1 (5.4 t.ha -1 ), while control recorded lower values. A significant quadratic response on fresh leaf yield was observed with MSWC leading to a maximum of yield of 8.15 t.ha -1 at 23.03 t.ha -1 . Conclusion and application of results : The results indicated that the MSWC performs better when used at the optimal rate (23.03 t.ha -1 ), and can be used as a promising fertilizer source in Corchorus olitorius production in Benin. Key words: Leaf yield, waste compost, cow dung, Corchorus olitorius, Benin
14 citations
TL;DR: This study shows that phy toplasmas infecting jute and sesame plants were identified in the same phytoplasma group and naturally grown jute plants could possibly serve as inoculum source for next year infections for phyllody disease in sesame.
13 citations
TL;DR: Higher leaf attributes were obtained and this indicated that traditional leafy vegetables can be produced commercially under lower densities using a drip irrigation system.
Abstract: Amaranthus cruentus, Corchorus olitorius and Vigna unguiculata are traditional leafy vegetables with potential to improve nutritional security of vulnerable people. The promotion of these crops is partly hindered by the lack of agronomic information. The effect of plant spacing on growth, physiology and yield of these three leafy vegetables was evaluated under commercial-scale production at Roodeplaat, Pretoria over two summer seasons, 2011/12 and 2012/13. A randomised complete block design was used with plant density (100 000, 66 666 and 50 000 plants ha−1) as a factor. Chlorophyll content index (CCI), chlorophyll fluorescence, stomatal conductance, leaf number, leaf area index (LAI) and biomass were measured in situ. Planting at 100 000 plants ha−1 resulted in lower (P < 0.05) LAI, CCI and biomass per plant for A. cruentus and C. olitorius. Total yield of A. cruentus, C. olitorius and V. unguiculata was higher (P < 0.05) at 100 000 plants ha−1 relative to 50 000 and 66 666 plants ha−1. For A. cruentus a...
13 citations
TL;DR: Corchorus olitorius root is another good source of phytomedicine that can be used effectively to treat inflammation and pyrexia that accompany some diseases.
Abstract: BACKGROUND This study was designed to provide information about the antipyretic and anti-inflammatory effects of Corchorus olitorius root. METHODS Thirty male Wistar rats were divided into six groups of five animals each; the control and reference groups were administered normal saline (10 mL/kg) and indomethacin (5 mg/kg), respectively, whereas the remaining four groups were administered aqueous extract of C. olitorius at doses of 25, 50, 100, or 200 mg/kg, respectively. Pyrexia was induced by injecting 10 mL/kg of 20% (w/v) brewer's yeast suspension into the dorsum of rats, whereas inflammation was induced through an injection of 0.1% carrageenan into the right hind paw of each rat and through a subcutaneous implantation of a 30-g sterilized cotton pellet into the groin of each rat. RESULTS The results showed that C. olitorius root extract (p<0.05) decreased the elevated temperature after brewer's yeast injection compared with the 17 h (pre-drug) temperature. In the inflammatory tests, the paw sizes and granuloma weights in the test groups were significantly (p<0.05) decreased compared with the control group. CONCLUSIONS Corchorus olitorius root is another good source of phytomedicine that can be used effectively to treat inflammation and pyrexia that accompany some diseases.
13 citations
Journal Article•
TL;DR: Poultry manure seems to be a better alternative for the production of jute mallow because it was found to be more mucilaginous than plants that received other treatments.
Abstract: Field experiment was conducted at the teaching and research farm, Federal University of Technology, Minna, Niger state Nigeria during 2014 rainy season to determine the effect of different nutrient sources on the growth, yield and quality of jute mallow (Corchorus olitorius L). The experiment was a randomized complete block design. The treatments were control (no fertilizer), poultry manure at the rate of 8 t/ha, organomineral fertilizer (4 t/ha poultry manure + 125 kg NPK 20:10:10 /ha), NPK 20:10:10 fertilizer at the rate of 250 kg/ha. The data collected were subjected to analysis of variance (ANOVA) using Statistical Analysis System (SAS) and means were separated using least significant difference (LSD0.05). The results showed that all the parameters measured were significantly affected by the different nutrient sources. Largest leaves and stems were observed in plants which received poultry manure. There was no significant difference between the values of plant height and number of leaves recorded in plants treated with poultry manure and NPK fertilizer. The lowest values of all the growth parameters measured were recorded in the control plants. The highest yield values (fresh and dry matter yield) were obtained in plants which received poultry manure followed by NPK fertilizer while the least was recorded in the control plants. The highest values of crude protein and phosphorus were recorded in plant treated with poultry manure whereas the least values were recorded in control plants. There were no significant differences between the values of ash, Na, K and moisture content recorded in plants that received poultry manure and NPK fertilizer. Plants treated with poultry manure were more mucilaginous than plants that received other treatments. Poultry manure seems to be a better alternative for the production of jute mallow.
12 citations
TL;DR: The effect of wild jute species with higher phenol and peroxidase as host plants manifested adversely on larval development, growth, survival, pupation, and adult emergence, which indicates the antibiosis mechanism of resistance.
Abstract: The oviposition, feeding behavior, and development of the jute hairy caterpillar Spilosoma obliqua Walker (Lepidoptera: Arctiidae) was studied on one cultivated jute species, Corchorus olitorius L. (‘JRO-204') (Malvales: Malvaceae), and 5 wild jute species, viz., C. tridens L., C. trilocularis L., C. pseudo-olitorius Islam & Zaid, C. aestuans L., and C. fascicularis Lamarck under laboratory conditions with a temperature of 27 ± 2 °C and relative humidity of 80 ± 5%. These host plant species had considerable influence on oviposition, larval feeding behavior, larval survival, larval weight, pupation, pupal weight, and adult emergence. Significant differences were observed in oviposition preference based on numbers of eggs laid by the adults. The mean number of egg clusters differed significantly with 3.6 ± 0.3, 3.0 ± 0.6, 3.3 ± 0.3, 3.0 ± 0.6, 1.0 ± 0.6, and 2.0 ± 1.2 on C. olitorius, C. fascicularis, C. trilocularis, C. pseudo-olitorius, C. tridens, and C. aestuans, respectively. The C. pseudo-oli...
9 citations
TL;DR: Biochemical and physiological tests suggest that these microbes may bring a wide range of benefits to their hosts, and the antifungal activity of one of the fungi against a devastating pernicious fungus that affects hundreds of plant species is important.
Abstract: Endophytes are plant-associated microbes that live within plants as an integral part of the host metabolism and function. This study aimed to identify the molecular and physiological characteristics of both culturable and non-culturable endophytic bacteria and fungi present in different parts of the jute (Corchorus olitorius) plant. Using universal primers used to amplify hypervariable bacterial 16S rDNA and fungal internal transcribed spacer (ITS) regions of 18S rDNA, we identified five different culturable and 20 non-culturable endophytic bacteria as well as 14 different fungal endophytes from various parts of jute. Biochemical and physiological tests suggest that these microbes may bring a wide range of benefits to their hosts. For example, all five culturable endophytic bacteria were positive for auxin and catalase activity, which may lead to improved root elongation and stress resistance, respectively. These bacteria also have metal uptake, haemolytic and hydrolytic activities that could be useful in medical, environmental and industrial applications. The fungal endophytes were positive for lignin peroxidase, cellulase and xylanase activities, all of which may influence jute physiology. Another important finding was the antifungal activity of one of the fungi against a devastating pernicious fungus that affects hundreds of plant species.
9 citations
TL;DR: A field experiment was conducted in 2013 and 2014 cropping seasons at the Research and Teaching Farms of the Faculty of Agricultural and Environmental Sciences, University of Gadarif, to evaluate the effect of different rates of chicken manure on the growth and yield of jute mallow as mentioned in this paper.
Abstract: A field experiment was conducted in 2013 and 2014 cropping seasons at the Research and Teaching Farms of the Faculty of Agricultural and Environmental Sciences, University of Gadarif, to evaluate the effect of different rates of chicken manure on the growth and yield of jute mallow. The experiment consisted of four levels of chicken manure viz; 0, 5, 10, and 20 t/ha. The treatments were arranged in a randomized complete block design with three replicates. The results showed that increasing chicken manure significantly increased all the growth attributes of jute mall and resulted in an increase in crop yield and yield components in both seasons. The present study revealed that jute mallow has a positive response to chicken manure application which succeeded to compensate the deficiency of minerals in the Gadarif State of Sudan under rain-fed conditions. The study also recommend that the highest chicken manure application rate (20 t/ha) is indispensible for vigorous growth and substantial increase in jute mallow under harsh semi-arid conditions of Sudan.
TL;DR: Present data and the average rate of increase of lignin production can be considered as a reference value for projects working on producing low-lignin - jute varieties.
Abstract: Stem lignin content of a mature jute plant was found to be around 29% giving a deposition rate of 0.21% per day. The study was made on individual plants of different ages starting from five weeks when they were big enough to produce sufficient dry mass for lignin estimation to 16 weeks of age when a jute plant is ready for retting. An intense rate of increase (1.15%) was found during the 7th week of growth, probably due to a rise in temperature. Present data and the average rate of increase of lignin production can be considered as a reference value for projects working on producing low-lignin - jute varieties. DOI: http://dx.doi.org/10.3329/bjb.v43i3.21603 Bangladesh J. Bot. 43 (3): 309-314, 2014 (December)
01 Jan 2015
TL;DR: The molecular phylogenetic relationships among the important members of these two genera Corchorus L. and Hibiscus L. are described to be related through maternal inheritance as well as to know their relative dispersal throughout the world.
Abstract: Members of the genera Corchorus L. and Hibiscus L. are excellent sources of natural fibers and becoming much important in recent times due to an increasing concern to make the world greener. The aim of this study has been to describe the molecular phylogenetic relationships among the important members of these two genera as well as to know their relative dispersal throughout the world. Monophyly of Corchorus L. is evident from our study, whereas paraphyletic occurrences have been identified in case of Hibiscus L. Although C. olitorius is assumed to be originated from Africa and C. capsularis from Indian subcontinent, our study found both to be related through maternal inheritance. This prompted us to put forward a hypothesis with archeological support to explain the dispersal routes of migration of these two Corchorus species. Similar migratory occurrences may also be true for Hibiscus L.
CitationThis paper has been cited by the following papers:1. Jute genomics: emerging resources and tools for molecular breeding2. Postharvest physiology of Corchorus olitorius baby leaf growing with different nutrient solutions3. The genus Corchorus L. (Malvaceae) in India: species distribution and ethnobotany4. Determination of nuclear DNA content, ploidy, and FISH location of ribosomal DNA in Hibiscus hamabo
01 Jan 2015
TL;DR: It may be concluded that the integrative use of phytohormone-producing plant growth-promoting P. extremorientalis strain could be an eco-friendly strategy for increasing plant growth and development of jew’s mallow under saline soil condition.
Abstract: This study examined the effects of phytohormone-producing Pseudomonas extremorientalis TSAU6 and plant growth regulators indole-3-acetic acid (IAA) and gibberellic acid (GA) on the growth parameters of jew’s mallow (Corchorus olitorius L.) under salt stress conditions. The inoculated jew’s mallow seeds with IAA- and GA-producing P. extremorientalis TSAU6 strain significantly increased root length by 45 %, shoot length by 84 %, and fresh weight by 28 % at 100 mM NaCl compared to uninoculated control plants. All concentrations of IAA and GA showed stimulatory effect on the root and shoot growth of jew’s mallow seedling under nonsaline and salt stress conditions. Plant growth-promoting properties of the strain in pot experiments with saline soil showed that P. extremorientalis TSAU 6 significantly increased shoot length by 21 % and dry matter of jew’s mallow by 18 %. Based on the results, it may be concluded that the integrative use of phytohormone-producing plant growth-promoting P. extremorientalis strain could be an eco-friendly strategy for increasing plant growth and development of jew’s mallow under saline soil condition. It is also indicated that plant growth regulators such as auxins and gibberellins play an important role in plant salinity tolerance.
Journal Article•
TL;DR: In this paper, the effects of different concentrations of NPK fertilisers on the growth and development of wild okra were investigated in an experiment laid in a Randomized Complete Block Design (RCBD) whereby in the control, no fertilizer was applied.
Abstract: Wild okra (ligusha) [Corchorus olitorius L.] is an important indigenous vegetable in Swaziland. Although the crop is a popular vegetable among rural communities, not much has been done to produce it using nitrogen, phosphorus and potassium fertilisers. The purpose of this study was to investigate the effects of different concentrations of NPK fertilisers on growth and development of Corchorus olitorius (ligusha). Different concentrations of NPK fertilisers (2.3.2(22), (2.3.2(37) and 2.3.4(39) were applied in an experiment laid in a Randomized Complete Block Design (RCBD) whereby in the control, no fertilizer was applied. It was noticed that there were significant (P<0.05) increases in all the growth parameters that were measured in the pots where 2.3.4(39) fertiliser was applied followed in decreasing order by 2.3.2(37), 2.3.2(22) and lastly the control. There were also significant (P<0.05) differences of yield fresh mass and dry mass of ligusha. The plants grown in the 2.3.4(39) applied pots had the highest fresh (142.7 g) and dry yield (31.0 g) mass followed in decreasing order by 2.3.2(37), 2.3.2(22) and lastly the control. The least fresh (14.8 g) and dry yield (3.3 g) mass was recorded in plants grown in the control pots. Plants that grew in the 2.3.4(39) applied fertiliser gave the highest yield of wild okra, under the conditions of this experiment.
TL;DR: These germplasm lines OIN-853, OIn-651, Oin-154, O in-125, OEX-27 and O in467, possessed good degree of resistance against stem rot of jute and were found moderately resistant under natural epiphytotic condition at Barrackpore and Bahraich location that would be further exploited for resistance breeding programme against this deadly disease.
Abstract: This study was aimed to identify more sources of resistance in jute germplasm (Corchorus olitorius) against deadly disease of stem rot. Thirteen C. olitorius jute germplasm including one standard check (JRO-524) were evaluated against stem rot disease at Barrackpore, Coochbehar and Bahraich location for two consecutive years 2012-2013. Out of thirteen germplasms of jute, six germplasms OIN-853, OIN-651, OIN-154, OIN-125, OEX-27 and OIN-467, with disease rating scale (1.1-5) were found moderately resistant against the stem rot disease at Barrackpore and Bahraich location. Whereas, OIN-270, OIN-932, OIN-270, OIJ-52, OIN-270, OEX-15 and OIN-853 with disease rating scale (5.1-10.0) were found moderately susceptible at all the three location. Rest of the lines were either susceptible or highly susceptible. These germplasm lines OIN-853, OIN-651, OIN-154, OIN-125, OEX-27 and OIN-467, possessed good degree of resistance against stem rot of jute and were found moderately resistant under natural epiphytotic condition at Barrackpore and Bahraich location that would be further exploited for resistance breeding programme against this deadly disease.
TL;DR: Aqueous extract of C. olitorius protected cells against cytotoxicity of mycotoxins, and contains a water-soluble, natural chemo-preventative agent for cancer that should be isolated and identifi ed.
Abstract: 75 ABSTRACT Aim: Afl atoxin B1 (AFB1) and fumonisin B1 (FB1) are important food-borne mycotoxins. Co-contamination of foodstuffs with these two mycotoxins is well-known and has been implicated in a possible development of hepatocellular carcinoma in humans living in regions of the world where exposures to these mycotoxins in grain are greatest. The aim of the current study was to evaluate the potential protective effects of an aqueous extract of Cochorus olitorius (C. olitorius, moroheiya) against cytotoxicity of AFB1 and/or FB1 in H4IIE-luc rat hepatoma cells, using assays to measure cell viability and disruption of DNA integrity. Although this transactivation assay was originally developed to specifi cally respond to aryl hydrocarbon agonists, this cell line was used because of its hepatic origin. Methods: H4IIE-luc cells were incubated with different concentrations of AFB1 and/or FB1 for 24 and 48 h with or without aqueous extract of C. olitorius. Results: Both mycotoxins decreased cell viability and increased DNA damage. Cytotoxicity was more pronounced when cells were exposed simultaneously to AFB1 and FB1. Conclusion: Aqueous extract of C. olitorius protected cells against cytotoxicity of mycotoxins. C. olitorius contains a water-soluble, natural chemo-preventative agent for cancer that should be isolated and identifi ed.
Journal Article•
TL;DR: In this paper, the authors investigated the genetic diversity and relationships in some Corchorus olitorius L grown in South-West Nigeria using random amplified polymorphic DNA (RAPD) markers.
Abstract: In this study, we investigated the genetic diversity and relationships in some Corchorus olitorius L grown in South-West Nigeria We used random amplified polymorphic DNA (RAPD) markers in a total of 17 Corchorus olitorius L cultivars Twenty-two RAPD markers detected 96 polymorphic alleles (average, 436) and a high number of unique alleles (29%) in eight lines Genetic distance based on RAPD data (Euclidean distance) ranged from 005 to 053 with a mean of 023, indicating low detected genetic diversity among the cultivars Cluster analysis of RAPD data based on unweighted pair group method with arithmetic mean (UPGMA) grouped Corchorus olitorius L cultivars into two main groups Majority of the lines (15) were assigned into Group I which included lines collected from the same or different places The second group consisted of two cultivars (EW05 and EW06) collected from the same place Principal Component Analysis (PCA) based on genetic distance also separated the cultivars into two groups Genetic diversity has been narrowed in these cultivars suggesting possible effects of domestication and selection processes
Journal Article•
TL;DR: Investigation of genetic diversity and relationships in some Corchorus olitorius L. cultivars grown in South-West Nigeria suggests possible effects of domestication and selection processes.
TL;DR: Among the 7 species of jute, the cultivated C. olitorius was the most suitable host for broad mites and it is evident that biochemical leaf constituents have an important role in the growth and buildup of mite pests in these crops.
Abstract: We studied the life cycle of the broad mite, Polyphagotarsonemus latus (Banks) (Prostigmata: Tarsonemidae), on 2 cultivated jute species (Corchorus olitorius L. and Corchorus capsularis L.; Malvales: Malvaceae) and 5 wild species (Corchorus aestuans L., Corchorus pseudo-olitorius Islam & Zaid, Corchorus fascicularis Lamarck, Corchorus tridens L., and Corchorus trilocularis L.) under laboratory conditions. Results showed that the egg incubation period, larval and nymphal durations, and adult male and female longevities of P. latus varied significantly on different jute species. The larval period (mean ± SD) was significantly shorter (57.00 ± 2.07 h) on C. olitorius than on C. fascicularis, C. aestuans, and C. tridens (68.00 ± 1.58 to 72.00 ± 1.30 h). The phenol content was greatest in C. trilocularis (61.92 ± 1.91 μg/g), and it was 16.26 ± 1.34 μg/g and 20.45 ± 1.43 μg/g in C. olitorius and C. capsularis, respectively. The polyphenol oxidase content was smallest in C. capsularis (0.99 ± 0.10 μg/mL...
TL;DR: A complementary DNA library of white jute was constructed and expressed sequence tags (ESTs) were characterized, indicating that unigenes of C. capsularis have higher homology to Populus trichocarpa, Ricinus communis and Corchorus olitorius.
Abstract: White jute ( Corchorus capsularis L.) is recognized as an important industrial raw material fibre crop owing to its elite characters. However, little information is known about its molecular basis and genomics. In this study, a complementary DNA library of white jute was constructed and expressed sequence tags (ESTs) were characterized. The titers of original and amplified libraries were 2.32 × 10 7 and 1.07 × 10 9 pfu/mL, respectively. The recombinant frequency was 98.3% in the library. Most of the sequences ranged from 500 to 1500 bp with an average length of 750 bp. Results show 203 (73%) ESTs exhibited significant similarity with known or putative functional nucleotide sequences in the GenBank databases. Cluster analysis allowed the identification of 61 unique sequences. These genes were classified into six types by Gene Ontology (GO) annotation. The results also indicated that unigenes of C. capsularis have higher homology to Populus trichocarpa , Ricinus communis and Corchorus olitorius . This report will provide a valuable resource for the further investigations in the gene cloning, transcription or expression for white jute. Key words: White jute, Corchorus capsularis, cDNA library, construction, ESTs, analysis.
Journal Article•
TL;DR: The results of the present study suggested that hybridization between genotypes in cluster V and IV could provide a wide spectrum of variation in the segregating generation which could provide opportunity for isolation of drought tolerant with high fibre yielding lines.
Abstract: The present investigation studied genetic divergence of 60 genotypes of tossa jute (Corchorus olitorius L.) which included sixteen standard varieties to identify the most diverged genotypes under moisture stress condition. On the basis of mahalanobis D2 analysis, genotypes were grouped into five clusters. Maximum inter-cluster distance was observed between cluster IV and V while cluster III showed the maximum intra-cluster distance. Cluster V exhibited highest means for days to 50% flowering, plant height, number of node, internode length, base diameter, mid diameter, top diameter, bark thickness and fibre weight. The highest contribution (12.63%) was exerted by plant height of total divergence. The results of the present study suggested that hybridization between genotypes in cluster V and IV could provide a wide spectrum of variation in the segregating generation which could provide opportunity for isolation of drought tolerant with high fibre yielding lines.
01 Jan 2015
TL;DR: The characters basal diameter, green weight and fibre % appeared to be predominant consideration for fibre yield as they exhibited highly significant positive correlation with fibre yield, among themselves and exerted positive direct effect on fibre yield.
Abstract: Twenty seven genotypes of Corchorus olitorius L. having diverse origin were sown in Randomized Block Design with three replications, in four successive growth seasons from 2007 to 2010 during pre-kharif season at the instructional farm of Uttar Banga Krishi Viswavidyalaya, Pundibari, Cooch Behar, West Bengal. From the cluster analysis the genotypes JRO 128 and JRO 878 in cluster VII, OIN 046, OIN 217, OIN 572, OIN 574, OIN 576, OIN 580 and JRO 620 in cluster VI and OIJ 015, OIN 028, OIN 257 and OIJ 267 in cluster V were found to be distinct with the desirable characteristics and may be incorporated in breeding programme to improve fibre yield and quality. The characters basal diameter, green weight and fibre % appeared to be predominant consideration for fibre yield as they exhibited highly significant positive correlation with fibre yield, among themselves and exerted positive direct effect on fibre yield. Therefore, selection based on these characters may bring out desired improvement towards enhancing the fibre yield in tossa jute.
Journal Article•
TL;DR: In this paper, the authors investigated the removal of Rhodamine-B dye from aqueous solution by using Corchorus Olitorius-L Leaves Nano Carbon (ACONC).
Abstract: The research of the present work was to investigate the removal of Rhodamine-B dye from aqueous solution by using Corchorus Olitorius-L Leaves Nano Carbon (ACONC). Generally, dyes are used in chemical, textile, paper, printing, leather, plastics and various food industries. The need for the treatment of dye contaminated waste water passed out from the industry. In this study, Corchorus Olitorius L Nano Carbon was studied for its potential use as an adsorbent for removal of Rhodamine-B dye. The various factors affecting adsorption, such as initial dye concentration, contact time, adsorbent dose, effect of temperature and pH were evaluated. The experimental data were fitted into the pseudo-second order kinetic model. The equilibrium of adsorption was modeled by using the Langmuir and Freundlich isotherm models. The objective of the present work suggests the ACONC may be utilized as a low cost adsorbent for Rhodamine-B dyeremoval from aqueous solution.
01 Jan 2015