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  • Sharmila Rani Mallick

    Sharmila Rani Mallick

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Sharmila Rani Mallick

Overview of thesis

Peaches and nectarines are highly valued for their flavour, taste, and nutritional quality; however, their rapid ripening and short shelf life limit marketability. Cold storage is commonly used to extend storage life; nevertheless, it often induces chilling injury (CI), causing symptoms such as mealiness, internal browning, bleeding, off-flavour, and irregular ripening, that reduce fruit quality and consumer acceptance. Current physical and chemical strategies for CI management have shown limited effectiveness due to their high cost, quality deterioration, and short-term benefits. Plant growth regulators (PGRs) have emerged as a promising postharvest approach, although their effects are often cultivar- and dose-dependent. The roles of Cultar® (paclobutrazol), Perlan® (GA4/7 + N6-benzyladenine), Ethrel® (ethephon), and GA4+7 in improving cold tolerance, reducing oxidative stress, and maintaining fruit quality in peaches and nectarines remain unclear. Therefore, this study aims to evaluate the effects of individual and combined applications of PGRs, including methyl jasmonate (MeJA), melatonin (MT), gibberellic acid (GA3), abscisic acid (ABA), aminoethoxyvinylglycine (AVG), GA4+7, Perlan® and Cultar®, on CI development, oxidative stress and fruit quality in different peach and nectarine cultivars during cold storage. The findings are expected to provide practical strategies to reduce CI, maintain fruit quality, minimise postharvest losses, and enhance profitability in the stone fruit industry.

Research

  • Chitosan and ascorbic acid coating on ice apple for extending the shelf life and retaining the quality
  • Performance of different gladiolus genotypes for off-season production
  • Secondary metabolites diversity of rose accessions available in Bangabandhu Sheikh Mujibur Rahman Agricultural University, Bangladesh
  • Increasing survivability of water lily seedlings grown naturally from seeds

Research Interests

  • Pre- and postharvest management of horticultural crops (By using Plant Growth Regulators, Bio-stimulants)
  • Plant physiology and postharvest physiology of horticultural crops
  • Climate resilient technology innovation for production of horticultural crops

Past Research employment history

  • 2021-Update: Assistant Professor, Gazipur Agricultural University, Bangladesh
  • 2017-2021: Scientific Officer, Bangladesh Agricultural Research Institute, Bangladesh
  • 2016-2016: Scientific Officer, Bangladesh Rice Research Institute, Bangladesh

Past Teaching

  • 2021-Update: Assistant Professor, Gazipur Agricultural University, Bangladesh

Scholarships and Awards

  • 2025 – Current: Edith Cowan University Higher Degree by Research Scholarship
  • 2014: Ministry of Science and Technology, Bangladesh Awarded National Science and Technology Fellowship
  • 2014: Bangabandhu Sheikh Mujibur Rahman Agricultural University, Bangladesh Awarded Dean Merit Scholarship

Supervisors

  • Principal Supervisor: Professor Zora Singh, Edith Cowan University
  • Associate Supervisor: Dr Mekhala Vithana, Edith Cowan University

Contact

Sharmila Rani Mallick
PhD Student
School of Science
Email: smallick@our.ecu.edu.au
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