Role of informal seed system in promoting landrace diversity and their on-farm conservation: a case study of rice in Indian Himalayas |
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| Authors: | Avinash?Pandey Email author" target="_blank">I?S?BishtEmail author K?V?Bhat P?S?Mehta |
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| Institution: | (1) National Bureau of Plant Genetic Resources, Pusa Campus, New Delhi, 110012, India;(2) NBPGR Regional Station Bhowali, Nainital, UA, 261132, India;(3) Present address: ICAR Research Complex for NEH Region Umiam, Meghalaya, 793103, India; |
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| Abstract: | Role of informal seed system in landrace diversification, in situ conservation on-farm and sustainability in production were investigated as a case study for rice diversity in Indian Himalayas.
The diachronic pattern of landrace occurrence revealed substantial increase, both in landrace number and frequency, in time.
The local level seed supply in Uttarakhand Himalaya revealed that about 96% seed supply originated from informal system and
a mere 4% seed supply is met from formal seed supply networks. In higher elevation ranges, beyond 1200 masl, largely landrace
cultivation is practiced and a greater landrace diversification in traditional production was observed. Substantial variations
due to environmental adaptations in niche habitats help provide important donor germplasm for crop improvement to users. Further,
the population genetic structure also indicated enough diversity being maintained on-farm. Developing pathways for strengthening
local level seed system for landrace diversification linked to sustainability in food production and conserving agro-biodiversity
has been emphasized. |
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