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.

Detection of Natural Radionuclides Concentration in Corchorus olitorius and Soil asAffected by Different Fertilizers

Abstract: The main objective of this work to measure the activity concentration of naturally radionuclides 226Ra, 238U, 232Th and 40K in sandy loam soil and leaves of Jew's-mallow plant (Corchorus olitorius). A pot experiment was carried out and Jew's-mallow was cultivated in sandy loam soil with six types of commercial and recommended fertilizers (NPK). The activity concentrations of 226Ra, 238U, 232Th and 40K in Bq kg-1 were measured by the high purity germanium detector to assess the effective dose of Jew's-mallow that largely consumed by Egyptian population. Gamma activities at the end of grown season in sandy loam soil contain slightly higher concentration of natural radionuclide than that soil at the beginning season and lower than worldwide values. The transfer factor for 226Ra, 238U, 232Th and 40K from soil to Jew's-mallow plants is less than unity in all treatments. The estimated annual effective dose due to the ingestion of Jew's-mallow plant varied from 7.89 - 21.5µSv y-1, which indicated that the use of fertilizer is not effect on the level of radionuclide in Jew's-mallow and it's safe for human consumption.

Effect of sowing dates and fertility levels on growth and fibre yield of jute (Corchorus species) varieties

Abstract: A field experiment with jute (Corchorus sp.) varieties was conducted during the rainy season of 1997 and 1998 at Raigarh, with 4 sowing dates and 2 fertility levels. Significantly higher values of growth, yield attributes and fibre yield were recorded with earlier sowing than delayed sowing. Maximum fibre yield of 2, 412 kg/ha was obtained when the crop was sown on 10 June, which drastically decreased with delay in sowing on 20, 30 June and 10 July (1, 995, 1, 492 and 1, 240 kg/ha respectively). Tossa jute (Corchorus olitorius L.) variety ‘JRO 524’ (1, 844 kg/ha) gave higher fibre yield than to white jute (C. capsularis L.) ‘JRC 212’ (1, 726 kg/ha). The white jute ‘JRC 212’ gave higher fibre yield when sown on 10 June with fertility level of 60: 40: 30 kg N: P2O5: K2O/ha, whereas the sowing of ‘JRO 524’ can be extended up to 20 June with fertility level of 60:45:45 kg N: P2O5: K2O/ha.

Effect of yellow mite, Polyphagotarsonemus latus (banks) density on hosts (Corchorus olitorius L.) phenology and assessment of yield loss under net house condition

Abstract: The yellow mite, Polyphagotarsonemus latus Banks (Acari: Tarsonemidae) is one of the most serious pests of jute crop (Corchorus olitorius L.) in Bangladesh. Jute plants of tossa (C. olitorius) varieties were considered as treatments including, O-9897,O-72,OM-1 and O-795. The paired plot treatments (miticide treated and miticide untreated control) were laid out under net house condition. The impact of yellow mite, were studied on three stages of jute plants: 60, 90 and 120 DAS. The higher number of mite stages observed up to 90 DAS then declined afterward up to 120 DAS in var. OM-1 among four C. olitorius varieties. A damage index scale (0-5) was to assess yellow mite injury to jute plants. The percent infestation and damage index was also used to relate yellow mite injury to different yield contributing characters of plants infested at three different phenological stages. The yield contributing characters of untreated plots showed significant damage at 60, 90 and 120 DAS in C. olitorius varieties compared to treatment plots. The highest fibre yield losses due to mite infestation was found in the variety OM-1 (74.71%) followed by O-795 (72.98%), O-72 (68.14%) and the lowest was in O-9897 (50.11%); the highest stick yield losses in OM-1(57.18%) followed by O-795 (49.43%), O-9897 (49.35%), the lowest was in O-72(48.92%)and the highest seed yield losses in O-795(64.34%)followed by O-72(48.21%),OM1(44.55%), he lowest was in O-9897(42.69%) under net house condition. High yellow mite population in the untreated check decreased plant growth and showed significant fibre and stick weight loss in the variety OM-1 and seed weight loss in the variety O-795.

The Effect of Corchorus olitorius L. Extract on Viability of Breast Cancer Cells: A friend or a foe?

Abstract: This Corchorus olitorius L. is known to be a medicinal plant widely consumed in the Eastern Mediterranean region and has anti-bacterial, anti-inflammatory and anti-cancer properties. Breast cancer has one of the highest mortality rates among all cancers. Therefore, the main aim of the study is to evaluate the effectiveness of C. olitorius plant on viability of estrogen receptor (ER) positive breast cancer cell line, MCF-7. C. olitorius leaves first extracted with ethanol, then LC-MS/MS analysis was done for identification of phytochemicals. MTT assay was used for assessment of cell viability of MCF-7 cells. Cells were treated with C. olitorius extracts at five concentrations (5, 10, 20, 50, 100 µg/ml) and four different incubation periods (24, 48, 72, 96 h). LC-MS/MS analysis identified seven phytochemicals in the extract, mainly quercetin and caffeoylquinic acid derivatives. MTT results showed that the extract was only slightly effective in terms of reduction of cell viability at 50 and 100 µg/ml doses which were incubated for 24 and 48 h. Lower concentration doses did not show any effect in cell viability of MCF-7 cells. Longer incubation periods tend to increase cell viability of breast cancer cells. Quercetin identified within the extract might interfere with ER and promote MCF-7 cell proliferation. Therefore, in ER positive breast adenocarcinoma, quercetin intake and doses should carefully be monitored. More studies regarding the relationship between C. olitorius , quercetin and breast cancer should be done for further clarification of the topic.