1. Home
  2. Current Affairs
  3. Current News
  4. Indian Study Develops Method to Identify Crop Pollen

Indian Study Develops Method to Identify Crop Pollen

  • 07 Apr 2026

In April 2026, Birbal Sahni Institute of Palaeosciences developed a new method to distinguish crop pollen from wild grasses, offering key insights into the origins of agriculture in the Central Ganga Plain.

Key Points

  • Scientific Challenge
    • Crop pollen (wheat, rice, barley, millets) resembles wild grass pollen.
    • Difficult to identify under a microscope.
  • Breakthrough Method
    • Introduced a “paired biometric threshold”.
    • Uses grain size and annulus diameter for differentiation.
  • Key Criteria
    • Crop pollen: >46 micrometres (grain), >9 micrometres (annulus).
    • Wild grass pollen: below these values.
  • Methodology
    • Analysed 22 cereal and non-cereal grass species.
    • Used light and electron microscopy.
  • Region of Focus
    • Central Ganga Plain.
    • Important for studying early agriculture and settlements.
  • Significance for Research
    • Enables accurate reconstruction of ancient farming practices.
    • Tracks vegetation changes and human impact during the Holocene.
  • India-Centric Approach
    • Based on indigenous data, not European models.
    • First region-specific benchmark in India.