LG 19A 10 Sweet Potato (PSB Sp 20): Yield, Maturity and Characteristics
LG 19A 10 is a registered sweet potato variety, also sold or known as PSB Sp 20. It was registered with the National Seed Industry Council in 1997 as NSIC 1997 Sp 20. It takes 100 to 120 days from planting to harvest, with 11.08 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.
If you came here looking for PSB Sp 20, this is the same sweet potato. Compare it with the others in our sweet potato variety finder, or see every crop variety we list. For the crop itself, read our guide: Land preparation for root crops.
- Days to harvest: 100 to 120 days from planting to harvest.
- Yield: 11.08 tonnes per hectare on average in the trials.
Key facts about LG 19A 10 sweet potato
| Trait | What the record shows |
|---|---|
| Registration | NSIC 1997 Sp 20 |
| Year approved | 1997 |
| Also known as | PSB Sp 20 |
| Days to harvest | 100 to 120 days |
| Average yield | 11.08 t/ha |
| Dry matter content | 31.73 |
| Starch content | 51.8 |
| Flesh color | Light Yellow |
| Root shape | Long Elliptic |
| Skin color | Red |
How long does it take, and how much does it yield?
LG 19A 10 sweet potato takes 100 to 120 days from planting to harvest. That is 4.5 days faster than the average of the 26 sweet potato varieties with a day count, 114.5 days. A shorter crop frees the field sooner and dodges more of the weather, while a longer one often fills more.
Its average yield of 11.08 t/ha trails the average of its group, 15.15. 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 |
|---|---|---|
| Scab | Moderately susceptible | Took clear damage |
| Weevil | Moderately susceptible | Took clear damage |
It was weak against scab, weevil, so scout for them from the early weeks.
The pests and diseases that hit sweet potato fields most often: root knot nematode. Our pest finder and disease finder help you name what you see.
What the root is like
Its roots have light yellow flesh and red skin. Dry matter is 31.73 percent. A higher dry matter cooks mealy and gives processors more flour or starch from each tonne. The starch content is 51.8 percent.
Where and when to plant LG 19A 10 sweet potato
Pick by use and market: yellow or orange flesh for snacks and fries, purple for processing, white for boiling. Weevils are the main enemy, so plant clean cuttings and harvest on time.
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 freeSweet potato varieties like this one
These are the closest matches among the sweet potato varieties we list. So if seed of this one is hard to find, compare these first.
- PSB Sp 16: 100 to 120 days, 13.88 t/ha, 1993
- UPL Sp 6: 100 to 120 days, 17.84 t/ha, 1993
- VSp 8: 100 to 120 days, 13.5 t/ha, 1992
- UPL Sp 1: 110 to 114 days, 23.4 t/ha, 1983
Is PSB Sp 20 the same as LG 19A 10?
How long does it take to harvest?
What is its yield?
Where can I buy seed of LG 19A 10?
See how LG 19A 10 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.
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