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  1. Article ; Online: Inter- and intra-plant variation in phenol content in grains of rice (Oriza sativa varieties using phenol colour reaction

    SHAHIL KUMAR / S K CHAKRABARTY / RANJEET RANJAN

    The Indian Journal of Agricultural Sciences, Vol 91, Iss

    2021  Volume 6

    Abstract: Different stages of phenol colour reaction showed induction of phenol colour reaction occur post anthesis, i.e. stage 2. In the later stages, i.e. stage 3 (dough) and 4 (harvest maturity) seeds showed similar phenol reaction with less intensity. Phenol ... ...

    Abstract Different stages of phenol colour reaction showed induction of phenol colour reaction occur post anthesis, i.e. stage 2. In the later stages, i.e. stage 3 (dough) and 4 (harvest maturity) seeds showed similar phenol reaction with less intensity. Phenol content estimated at different stages of growth and maturity showed the highest at post fertilization stage, i.e. stage 2 and it decreased in stage third and fourth. Inter-panicle phenol content was not significantly different whereas intra-panicle difference in phenol content was observed.
    Keywords Phenol colour reaction ; Phenol content ; Rice variesties ; Variation ; Agriculture ; S
    Language English
    Publishing date 2021-08-01T00:00:00Z
    Publisher Indian Council of Agricultural Research
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  2. Article ; Online: Accurate Calculations on the Cascade Theory of Electronic Showers without Collision Loss

    S K Chakrabarty

    Proceedings of Indian National Science Academy, Vol 8, Iss

    2015  Volume 3

    Abstract: Accurate Calculations on the Cascade Theory of Electronic Showers without Collision ... ...

    Abstract Accurate Calculations on the Cascade Theory of Electronic Showers without Collision Loss
    Keywords Science ; Q
    Language English
    Publishing date 2015-02-01T00:00:00Z
    Publisher Indian National Science Academy
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Article ; Online: Nuclear-cytoplasmic interaction for stigma receptivity in Indian mustard (Brassica juncea) hybrid development

    SHAHIL KUMAR / S K CHAKRABARTY / NAVEEN SINGH / ANUJ KUMAR / MANJUNATH PRASAD C T / SUDIPTA BASU

    The Indian Journal of Agricultural Sciences, Vol 93, Iss

    2023  Volume 9

    Abstract: Field experiments were conducted during 2020–21 and 2021–22 at the research farm of ICAR-Indian Agricultural Research Institute, New Delhi to study the response of stigma receptivity in 30 new CMS lines, based on 3 new cytoplasmic male sterile (CMS) ... ...

    Abstract Field experiments were conducted during 2020–21 and 2021–22 at the research farm of ICAR-Indian Agricultural Research Institute, New Delhi to study the response of stigma receptivity in 30 new CMS lines, based on 3 new cytoplasmic male sterile (CMS) sources namely, Moricandia, erucoides and berthautii of Indian mustard [Brassica juncea (L.) Czern.] using two traits, i.e. per cent siliquae set and seed set per siliquae which are important for hybrid seed yield in seed production. CMS lines showed varying responses to distinct genetic backgrounds. Per cent siliquae set and seed set per siliquae changed due to cytoplasmic-nuclear interaction. Studies on stigma receptivity evaluation using manual pollination up to 7 days since anthesis revealed that it varies among the 3 CMS sources of Brassica juncea. Peak stigma receptivity reached up to 2 to 3 days following flower opening. Among the 3 CMS sources berthautii showed higher stigma receptivity compared to Moricandia and erucoides. Among the nuclear genotypes, Pusa Tarak was the most promising. The new CMS sources would be useful for hybrid development based on higher stigma receptivity for hybrid seed production. These findings will aid in the selection of appropriate nucleo-cytoplasmic combinations for use in the B. juncea hybrid breeding programmes.
    Keywords Artificial pollination ; Brassica juncea ; Cytoplasmic male sterile line ; Stigma receptivity ; Agriculture ; S
    Subject code 621
    Language English
    Publishing date 2023-09-01T00:00:00Z
    Publisher Indian Council of Agricultural Research
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  4. Article ; Online: Quarantine pathogen interceptions on crop germplasm in India during 1986 - 2010 and their possible economic impact

    R D V J PRASADA RAO / K ANITHA / S K CHAKRABARTY / A G GIRISH / B SARATH BABU / K RAMEASH / BABU ABRAHAM / K S VARAPRASAD

    The Indian Journal of Agricultural Sciences, Vol 82, Iss

    2024  Volume 5

    Abstract: The National Bureau of Plant Genetic Resources Regional Station, Hyderabad has facilitated safe introduction of 356 521 (1986–2010) germplasm accessions of various crops into India. About 60 seed-borne pathogens of quarantine importance were ... ...

    Abstract The National Bureau of Plant Genetic Resources Regional Station, Hyderabad has facilitated safe introduction of 356 521 (1986–2010) germplasm accessions of various crops into India. About 60 seed-borne pathogens of quarantine importance were intercepted on crop germplasm during seed examination in the laboratory and post-entry quarantine observations in the field. Of these, the quarantine pathogens, viz. Ralstonia solanacearum and peanut stripe virus in groundnut (Arachis hypogaea L.), Peronospora manshurica (Naum.) Syd. and peanut stripe virus in soybean [Glycine max (L.) Merr.], tobacco streak virus in sunflower (Helianthus annuus L.), Xanthomonas campestris pv holcicola (Elliot) Dye, Burkholderia andropogonis (Smith) Gillis et al. on sorghum [Sorghum bicolor (L.) Moench], Drechslera maydis (Nisik.) Subram. & Jain on maize (Zea mays L.) and Pseudomonas syringae pv tomato (Okabe) Young et al. on tomato (Lycopersicon esculentum Mill.) were intercepted from different countries. Yield losses that could have occurred were estimated had these pathogens of groundnut, soybean, sunflower, maize, sorghum and tomato not been intercepted.
    Keywords Interceptions ; Losses ; Pathogens ; Post-entry quarantine inspection ; Quarantine ; Agriculture ; S
    Language English
    Publishing date 2024-01-01T00:00:00Z
    Publisher Indian Council of Agricultural Research
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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