Showing papers on "Corchorus olitorius published in 1996"
TL;DR: To improve jute productivity, locating of sources of suitable quantitative-trait genes in the recently acquired world jute collection was needed and Corchorus capsularis mutants with high heterogenity for most of the traits should be useful for finding many rare alleles.
Abstract: To improve jute productivity, locating of sources of suitable quantitative-trait genes in the recently acquired world jute collection was needed. Two hundred sixteen accessions of Corchorus capsularis and 192 accessions of C. olitorius were evaluated at a jute seed research station (87°60\s'E, 23°80\s'N) for four yield and quality linked morpho-physiological traits. The objectives were to estimate the germplasm diversity, phenotypic (PCV) and genetic (GCV) coefficients of variation, broad sense heritability (h2) and genetic advance (GA) with respect to origins and traits. Irrespective of origins all the traits showed more than 60–80% diversity in both species. Trait means of diversity were significant but not the origin means. Generally, only slightly higher PCV values than GCV were obtained for all the traits in both the species. High h2 values ranging from 50% to more than 98% were also found. All the traits can be simultaneously utilized for genetic gain. Most of the C. olitorius accessions with two times higher GA estimates than those of the C. capsularis are likely to be more successful for that matter. Maximum genetic gain is expected from Mutants > China > Brazil > India > Thailand > Nepal > Burma in C. capsularis while from Thailand > Tanzania > Mutants > Kenya > Other countries in C. olitorius. C. capsularis mutants with high heterogenity for most of the traits should be useful for finding many rare alleles.
32 citations
TL;DR: The presence of E. coli and K. pneumoniae in these vegetables indicate that a potential health risk exists and that cross-contamination to other ready-to-eat commodities sold by the street vendors is possible by these bacteria or other closely related pathogenic members.
14 citations
25 Dec 1996
2 citations
Journal Article•
2 citations
Journal Article•
TL;DR: The surface and sub-surface fungal flora of 12 varieties of jute were studied using 4 different techniques and Aspergillus was the dominant species followed by Penicillium, and endophytic fungi were identified.
Abstract: The surface and sub-surface fungal flora of 12 varieties of jute (C. olitorius and C. capsularis) were studied using 4 different techniques. The blotter method and seed inoculation in agar provided a complete picture of the seed coat fungi, while the surface sterilization technique gave information on endophytic fungi. A total of 57 ectophytes and 5 endophytes were isolated. A greater number of c.f.u. were recorded on C. olitorius than on C. capsularis. Of the seed coat fungi, Aspergillus was the dominant species followed by Penicillium. The endophytes recorded were Macrophomina phaseolina, Fusarium oxysporum, F. moniliforme [G. fujikuroi] and Sclerotium rolfsii [Corticium rolfsii].
1 citations
TL;DR: Characteristics of some Nigerian jute cultivars are described and some visible properties with yield potential and AA concentration are attempted to associate and the appropriate time of harvest is determined to optimize AA content.
Abstract: Starchy staple foods of the tropical countries are usually eaten with leafy vegetables, such as jute. It is grown in Africa, the Caribbean, and tropical Asia for the preparation of draw-soup (Grubben, 1977; Purseglove, 1972). There is considerable diversity among accessions, with varying leaf shapes being important differentiating characteristics between cultivars (Akoroda, 1985). If a visible cultivar characteristic could be associated with edible leaf yield and ascorbic acid (AA) content, it could act as an indicator for identifying cultivars with the desirable qualities. We describe characteristics of some Nigerian jute cultivars and attempted to associate some visible properties with yield potential and AA concentration and determine the appropriate time of harvest to optimize AA content. Seedlots of eight accessions of jute were separately steeped in hot water (100C) for 10 sec to break dormancy. The seeds were airdried and sown 2 cm deep in an open field.
1 citations
Journal Article•
TL;DR: Genetic variability was observed among nine olitorius jute strains at 7 growth stages starting from 30th to 120th day, while other strains showed opposite trend in respect of plant height, basal diameter, barkweight, and dry fibre weight.
Abstract: Genetic variability was observed among nine olitorius jute strains at 7 growth stages starting from 30th to 120th day. A few strains showed slow initial growth but had high growth rate later, while other strains showed opposite trend in respect of plant height, basal diameter, barkweight, and dry fibre weight. Tanganika was the best among the strains studied. The growth at one stage was significantly different from that in subsequent stages. Bark weight showed positive correlation with plantheight, basal diameter, and dry fibre weight.
1 citations