Rice (Oryza sativa L.), belongs to the family Poaceae and is regarded as an important food crops worldwide. Its importance is evident in Asian countries. Northeast India is a global centre of genetic diversity because of the various landraces prevalent in the region. The present study documented the traditional landraces in Namsai district with semi-structured interviews and participant observation. A total of 29 landraces were documented. The diversity analysis of rice landraces in the district demonstrated higher Shannon diversity index and a lower Simpson dominance index. The evenness values reflect moderately fair distribution of landraces and the higher Menhinick index in Namsai (1.07) showing its greater species richness per unit sampling effort. Thus, the rice landraces in Namsai district should be conserved on-farm.
Silikta Manchey1*, Toku Bani1, Sumpam Tangjang1, Tonlong Wangpan1 (2026) studied this question.