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  • 1
    Online Resource
    Online Resource
    Effect of sowing date on the incidence of loose smut, flag smut and seed gall of wheat
    Bangladesh Academy of Sciences ; 1970
    In:  Bangladesh Journal of Agricultural Research Vol. 34, No. 1 ( 1970-01-01), p. 1-4
    Details
    In: Bangladesh Journal of Agricultural Research, Bangladesh Academy of Sciences, Vol. 34, No. 1 ( 1970-01-01), p. 1-4
    Abstract: An experiment was conducted to find out the effect of delay sowing on incidence of loose smut (Ustilago tritici), flag smut (Urocystis agropyri) and seed gall (Anguina tritici) of wheat. Varieties WH 896 and Raj 1555 were free from loose smut at all dates of sowing. At normal date of snwing (25 November) disease incidence varied from 28.18% (HD 2285) to 43.18 % (Sonalika). Due to delay in sowing by 20 days (15 December), the disease incidence was reduced to 21.33-38.18% and delay by 35 days (30 December) it was reduced to 18.62% -32.5 % on all susceptible varieties. At all dates of sowing, varieties WH 283, WI-I 291, WH 896 and Raj 1555 were not infected with flag smut. Other varieties were infected with the disease showing 1.3-14.57, 1.11-11.83 and 0.83-9.14% incidence at the sowing dates of 25 November (normal), 15 December (delay) and 30 December (delay), respectively. All of the varieties tested in this study were infected with seed gall nematode and disease incidence increased with delay in date of sowing. The ranges of the disease incidence were 8.16-20.14, 12.33-28.91 and 14.16-36.66% at first, second tnd third date of sowing, respectively.Key Words: Loose smut; flag smut; seed gall nematode; wheat; sowing date.DOI: 10.3329/bjar.v34i1.5746Bangladesh J. Agril. Res. 34(1) : 1-4, March 2009
    Type of Medium: Online Resource
    ISSN: 2408-8293 , 0258-7122
    URL: Article
    DOI: 10.3329/bjar.v34i1.5746
    Language: Unknown
    Publisher: Bangladesh Academy of Sciences
    Publication Date: 1970
    detail.hit.zdb_id: 2409822-X
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  • 2
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    Online Resource
    Efficacy of Mahapancha Gavya (MPG) in controlling damping-off in tomato caused by 〈i〉Pythium aphanidermatum〈/i〉
    Bangladesh Academy of Sciences ; 1970
    In:  Bangladesh Journal of Agricultural Research Vol. 35, No. 1 ( 1970-01-01), p. 11-16
    Details
    In: Bangladesh Journal of Agricultural Research, Bangladesh Academy of Sciences, Vol. 35, No. 1 ( 1970-01-01), p. 11-16
    Abstract: Maha Pancha Gavya (MPG), a concoction made from five cow products was tested for its toxicity against Pythium aphanidermatum (Edson) Fitz. and its antagonists at 5, 10, 25, and 50% concentration in in vitro to find out if it can be used in integration for the control of damping-off in tomato in nursery beds. MPG was very effective inihibiting the growth of P. aphanidermatum. At the highest concentration, the growth of the pathogen was negligible. Isolates of Trichoderma viride, T harzianum, and T. virens were also sensitive to MPG at all the concentrations. Their radial growth decreased, but it was fluffy in nature and sporulated profusely. MPG was not toxic against two bacterial antagonists i.e., Bacillus subtilis and Pseudomonas fluorescens. Soil application of 10% MPG to nursery beds improved seedling stand and gave upto 48.27% tlisease control, which was more than that given by individual antagonists. However, MPG improved disease control efficacy of all the antagonists when it was used in combination with them. Integrated treatment with MPG and B. subtilis gave maximum disease control (65.33%). MPG enhanced seedling growth and it was more in combination with T. viride and B. subtilis. MPG in integration with neem cake and neem leaf extract gave complete control of damping-off and maxium increase in height of the tomato seedlings. Keywords: Maha Panch Gavya (MPG); Trichoderma; Pythium aphanidermatum; integrated control; neem products; tomato; damping-off. DOI: 10.3329/bjar.v35i1.5862Bangladesh J. Agril. Res. 35(1) : 11-16, March 2010
    Type of Medium: Online Resource
    ISSN: 2408-8293 , 0258-7122
    URL: Article
    DOI: 10.3329/bjar.v35i1.5862
    Language: Unknown
    Publisher: Bangladesh Academy of Sciences
    Publication Date: 1970
    detail.hit.zdb_id: 2409822-X
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  • 3
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    Online Resource
    Cultural variability among nine isolates of 〈i〉Urocystis agropyri〈/i〉 on wheat
    Bangladesh Academy of Sciences ; 1970
    In:  Bangladesh Journal of Agricultural Research Vol. 33, No. 3 ( 1970-01-01), p. 347-351
    Details
    In: Bangladesh Journal of Agricultural Research, Bangladesh Academy of Sciences, Vol. 33, No. 3 ( 1970-01-01), p. 347-351
    Abstract: Four temperatures and five different media were tested for cultural variability of nine geographical isolates of Urocystis agropyri (Preuss.) Schroet causing flag smut of wheat. Urocystis agropyri is extremely slow growing pathogen and each isolate responded differently at different temperatures. All the isolates/ collections grew well at 20°C after 45, 60, and 70 days after incubation. Ambala isolate was fast growing. PDA medium was found to be most suitable for the growth of all the nine isolates/collections. The average mycelial growth was also maximum on Potato Dextrose Agar Medium followed by Corn Meal Dextrose Agar, Oat Meal Dextrose Agar, Grain Meal Dextrose Agar and minimum on Wheat Meal Dextrose Agar. Key Words: Variability, media, isolates, wheat. doi:10.3329/bjar.v33i3.1593 Bangladesh J. Agril. Res. 33(3) : 347-351, September 2008
    Type of Medium: Online Resource
    ISSN: 2408-8293 , 0258-7122
    URL: Article
    DOI: 10.3329/bjar.v33i3.1593
    Language: Unknown
    Publisher: Bangladesh Academy of Sciences
    Publication Date: 1970
    detail.hit.zdb_id: 2409822-X
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