SM 818 1 Cassava: Yield, Maturity and Characteristics
SM 818 1 is a registered cassava variety. It was registered with the National Seed Industry Council in 2002 as NSIC 2002 Cv 21. It takes 10 to 12 months from planting to harvest, with 28.2 tonnes per hectare on average in the trials.
The average and top yields in tonnes per hectare come from the trials each variety went through to be registered with the NSIC, and from what the seed companies say about their own seed.
What farmers harvest today can be different. Newer harvest records, the season, the place, the soil, the water and the care all move these numbers over time.
So use them to compare varieties, not as a promise for your field. Ask your seller or your agriculturist how the variety did on farms near you in the last few seasons.
Compare it with the others in our cassava variety finder, or see every crop variety we list. For the crop itself, read our guide: Land preparation for root crops.
- Days to harvest: 10 to 12 months from planting to harvest.
- Yield: 28.2 tonnes per hectare on average in the trials.
- Recommended for: anywhere in the country.
- Local name: LSU Hi Starch.
Key facts about SM 818 1 cassava
| Trait | What the record shows |
|---|---|
| Registration | NSIC 2002 Cv 21 |
| Year approved | 2002 |
| Months to harvest | 10 to 12 months |
| Average yield | 28.2 t/ha |
| Recommended area | Anywhere in the country |
| Dry matter content | 38.4 |
| HCN content | Medium |
| Starch content | 27.6 |
| Root flesh color | White |
| Root cortex color | Cream |
| Root skin color | Dark Brown |
How long does it take, and how much does it yield?
SM 818 1 cassava takes 10 to 12 months from planting to harvest. That is about the average of the 42 cassava varieties with a day count, 10.5 months. Count the months from planting, and plan the harvest for a dry stretch when you can.
Its average yield of 28.2 t/ha trails the average of its group, 33.84. It sits in the lower quarter of its group. Trial yields come from well managed plots, so your own will depend on water, fertilizer, pests and timing.
Once you know the day count, anee.io dates every task from each lot's own planting day, with the growth stages and weather beside it.
Is it resistant to pests and diseases?
| Pest or disease | Rating | What it means |
|---|---|---|
| Brown leaf spot | Resistant | Held up well |
| Cassava bacterial blight | Resistant | Held up well |
| Spidermite | Resistant | Held up well |
| Peach scale insect | Resistant | Held up well |
It showed no weak spot in the ratings on record. Still, a resistant variety can break down when a new strain or pest population comes, so keep scouting.
The pests and diseases that hit cassava fields most often: whitefly, anthracnose, Cercospora leaf spot, mealybug. Our pest finder and disease finder help you name what you see.
What the root is like
Its roots have white flesh and dark brown skin. Dry matter is 38.4 percent. A higher dry matter cooks mealy and gives processors more flour or starch from each tonne. The starch content is 27.6 percent. Its cyanide level, the HCN content, is medium. A low level is safer for the table, while a high level calls for peeling, soaking and full cooking. It is recommended can be used as starch and feeds.
Where and when to plant SM 818 1 cassava
It is recommended for anywhere in the country. Pick by buyer first. Starch and feed plants pay for yield and starch content, while the table wants a sweet, low cyanide variety that boils soft. A high starch variety needs a buyer within a day of harvest, because the roots spoil fast.
Before you buy seed
- Buy sealed packs or tagged sacks from an accredited dealer, and check the packing date and germination rate.
- Ask your municipal agriculturist or nearby farmers how it did in your area last season.
- Try it on a small area first, beside the variety you usually plant, before you switch the whole farm.
- Write down the planting day, inputs and harvest, so you can compare varieties on your own ground. anee.io keeps these records for you.
Set the planting day of each lot and anee.io dates every task to harvest, with the weather beside it. Free on the Libre plan.
Start freeCassava varieties like this one
These are the closest matches among the cassava varieties we list. So if seed of this one is hard to find, compare these first.
- Rayong 72: 10 to 12 months, 31.5 t/ha, 2013
- OMR 40 09 34: 10 to 12 months, 42.8 t/ha, 2009
- CMR 39 50 18: 10 to 12 months, 29.7 t/ha, 2007
- OMR 39 48 02: 10 to 12 months, 29.5 t/ha, 2007
How long does it take to harvest?
What is its yield?
Where does it grow best?
Where can I buy seed of SM 818 1?
See how SM 818 1 will do on your farm
With Libre + Anee, see its full record: how it yields, its strengths and weaknesses against pests, diseases and the weather, and whether it fits your farm, your season and your soil.
The account is free, no credit card.
