Details of the different stages in producing certified seed potatoes in Rwanda
| Stage | Length of time | Price in 2022 | Multiplication factor | Result, number of potatoes |
|---|---|---|---|---|
| Growing of in vitro plantlet | 1–1.5 months | from RAB price 115 RWF/plant | 1 plantlet | 1 plantlet |
| Plantlets used to get mini-tubers, taking 1 month | 6 months of harvesting and 4 months sprouting | 100 RWF per mini-tuber | 1 plantlet produces 60 to 100 mini-tubers | 1 gives at the average 80 mini-tubers |
| Generation 1 Prebasic | 4 months to grow plus 4 to sprout | 850 RWF per kg | 10 a 12 | 11 × 80 = 880 |
| Generation 2 Basic | 4 months to grow plus 4 to sprout | 750 RWF per kg | 10 a 15 | 12.5 × 880 = 11,000 |
| Generation 3 Certified | 4 months to grow plus 4 to sprout | 700 RWF per kg | 10 a 15 | 12.5 × 11,000 = 137,500 certified |
| Total | 2–3 years | 450 RWF per kg | yield now and if using clean seed | 12.5 to 25 t/ha (10–15; 20–30) |
| Stage | Length of time | Price in 2022 | Multiplication factor | Result, number of potatoes |
|---|---|---|---|---|
| Growing of in vitro plantlet | 1–1.5 months | from RAB price 115 RWF/plant | 1 plantlet | 1 plantlet |
| Plantlets used to get mini-tubers, taking 1 month | 6 months of harvesting and 4 months sprouting | 100 RWF per mini-tuber | 1 plantlet produces 60 to 100 mini-tubers | 1 gives at the average 80 mini-tubers |
| Generation 1 Prebasic | 4 months to grow plus 4 to sprout | 850 RWF per kg | 10 a 12 | 11 × 80 = 880 |
| Generation 2 Basic | 4 months to grow plus 4 to sprout | 750 RWF per kg | 10 a 15 | 12.5 × 880 = 11,000 |
| Generation 3 Certified | 4 months to grow plus 4 to sprout | 700 RWF per kg | 10 a 15 | 12.5 × 11,000 = 137,500 certified |
| Total | 2–3 years | 450 RWF per kg | yield now and if using clean seed | 12.5 to 25 t/ha (10–15; 20–30) |
Source(s): Authors’ own creation
As a benefit of your subscription, you can share temporary access to restricted articles.
Each link will stop working after 30 days or 10 uses. You may create up to 10 links in a 30 day period.
Please sign in to your personal account to gift article access.
As a benefit of your subscription, you can share temporary access to restricted articles.
Each link will stop working after 30 days or 10 uses. You may create up to 10 links in a 30 day period.
Gift articles remaining: --
Each link will stop working after 30 days or 10 uses. You may create up to 10 links in a 30 day period.
Gift articles remaining: --
As a benefit of your subscription, you can share temporary access to restricted articles.
Each link will stop working after 30 days or 10 uses.
You have reached the limit of 10 links within a 30 day period.
Sharing content requires targeting cookies to be enabled. Please update your cookie preferences to use this feature.