SHAUKAT ALI KHAN

University of Karachi, Kurrachee, Sindh, Pakistan

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Publications (5)4.11 Total impact

  • Shaukat Ali Khan · Anjum Perveen · Ghulam Rasool Sarwar
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    ABSTRACT: Present investigation of pollen germination and viability pertain to Prunus amygdalus belonging to family Rosaceae. The pollen germination was examined up to 48 weeks in different concentrations of sucrose and boric acid solutions using "hanging drop technique". Viability was determined by storing pollen in different conditions as refrigerator (4°C), freezer (-20°C, -30°C), freeze drier (-60°C). Pollen stored at low temperature showed better percentage of germination compared to pollen stored at 4°C and fresh. Freeze dried pollen showed viability for a longer period.
    No preview · Article · Aug 2013 · Pakistan Journal of Botany
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    SHAUKAT ALI KHAN · ANJUM PERVEEN
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    ABSTRACT: Pollen germination capacity and viability of 3-mango cultivars viz., Chaunsa, Dasheri and Langra were investigated up to 48 weeks. Pollen germination was standard by hanging drop technique in different concentration of sucrose solutions (5%-50%) with 1% agar and 0.001% boric acid. The stored conditions were refrigerator (4ºC), freezer (-20ºC, -30ºC), freeze drier (-60ºC), in vacuum over silica gel and in organic solvents (acetone, benzene, chloroform). Pollen stored at low temperature showed better germination percentage compared to pollen stored at 4ºC and fresh. Among three cultivars variety langra showed better pollen germination at all stored conditions except at -20ºC. Variety chaunsa and dasheri also showed good germination of pollen.
    Full-text · Article · Jun 2009 · Pakistan Journal of Botany
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    Shaukat Ali Khan · Anjum Perveen
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    ABSTRACT: Present investigations pertain to pollen germination and viability of Ficus carica L. (Moraceae) for up to 48 weeks. Pollen germination was made by hanging drop technique in different concentration of sucrose and boric acid solutions (10%-100%). The stored conditions are refrigerator, freezer, in vacuum over silica gel and in organic solvents (acetone,benzene, and chloroform). Pollen stored at low temperature (-30°C, -20°C) showed better germination percentage compared to pollen stored at 4°C & fresh. The study indicates that 30% and 40% solutions favoured pollen germination. Benzene showed more germination than acetone and chloroform.
    Full-text · Article · Dec 2008 · Pakistan Journal of Botany
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    ANJUM PERVEEN · SHAUKAT ALI KHAN
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    ABSTRACT: Pollen germination of Malus pumila L., of the family Rosaceae was examined upto 48 weeks in a refrigerator (+4C), freezer (-20C, -30C) and freeze drier (-60C) using hanging drop technique in different concentration of sucrose and boric acid solution. Pollen stored at low temperature showed better germination percentage as compared to pollen stored at +4C and in fresh pollen. Freeze dried pollen (-60C) showed the highest germination percentage.
    Full-text · Article · Jun 2008 · Pakistan Journal of Botany
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    A. Parveen · Shaukat Ali Khan · Rubina Abid
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    ABSTRACT: Pollen germination of Carica papaya L., of the family Caricaceae was examined upto 48 weeks in refrigerator (+4oC), freezer (-20oC, -30oC) and freeze drier (-60oC). Pollen stored at low temperature showed better germination percentage as compared to pollen stored at +4oC and fresh. Freeze dried pollen (-60oC) showed the highest germination percentage. Whereas lowering the storage temperature and moisture contents tends to increase the viability.
    Full-text · Article · Oct 2007 · Pakistan Journal of Botany
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    SHAUKAT ALI KHAN · ANJUM PERVEEN
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    ABSTRACT: Present investigations pertain to germination and viability of Solanum melongena L., (Solanaceae) pollens up to 48 weeks. Pollen germination was made by the hanging drop technique in different concentration of sucrose and boric acid solutions (10%-100%). Viability under storage was determined by storing pollen in different conditions, like refrigerator, freezer, in vacuum over silica gel and in organic solvents (Acetone, Benzene, and Choloroform). Pollen stored at low temperature (-30°C, -20°C) showed better germination percentage compared to pollen stored at +4°C and fresh. Freeze dried pollen (-60°C) showed the best of germination. The study indicates that 30% and 40% solutions favoured pollen germination. Benzene showed more germination than acetone and chloroform.
    Full-text · Article · Dec 2006 · Pakistan Journal of Botany

Publication Stats

18 Citations
4.11 Total Impact Points

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Institutions

  • 2006-2013
    • University of Karachi
      • Department of Botany
      Kurrachee, Sindh, Pakistan