PSB Rc 46 (Sumadel) Rice Variety: Yield, Maturity and Characteristics
PSB Rc 46 is an inbred rice variety for cool, elevated areas, known locally as Sumadel. The Philippine Seed Board approved it in 1995. It matures in about 135 days and averages 4.3 tonnes per hectare, with a top yield of 5.8 tonnes in 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 rice variety 46, or Rc 46, this is the one. Compare it with the other varieties in our rice variety finder before you buy seed. Also read our guide to rice varieties in the Philippines for how inbreds, hybrids and special rice differ.
- Maturity: about 135 days after sowing.
- Yield: 4.3 tonnes per hectare on average, or about 86 cavans of 50 kilograms. The best trial reached 5.8 tonnes.
- Season: Dry season and wet season.
- Watch out for: brown planthopper.
- Cooked rice: high amylose, so firm and fluffy.
Key facts about PSB Rc 46
| Trait | Value |
|---|---|
| Year approved | 1995 |
| Local name | Sumadel |
| Type | Inbred |
| Growing environment | Cool elevated |
| Recommended season | Dry season and wet season |
| How to plant it | Dry direct seeded, transplanted, wet direct seeded |
| Recommended for | The whole country |
| Maturity | 135 days after sowing |
| Average yield | 4.3 t/ha |
| Top yield in trials | 5.8 t/ha |
| Plant height | 98 cm |
How much does PSB Rc 46 yield?
On average it gives 4.3 tonnes per hectare. That is about 86 cavans of 50 kilograms of palay. It sits above the average of the 10 cool, elevated areas inbreds on the list, which is 3.8 tonnes. But the top yield, 5.8 tonnes, came from a trial with good water, seed and care. So plan your costs on the average, then work toward the top with the habits in our guide to raising rice yield per hectare.
How many days does it take to mature?
It takes about 135 days from sowing to harvest. Varieties of 100 to 120 days count as short duration and 120 to 140 days as medium, so this one counts as medium duration. Then harvest when 85 to 90 percent of the grains turn golden yellow. Because the day count drives every task, anee.io counts it for you 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 |
|---|---|---|
| Rice blast | Intermediate | Took a middling share of damage |
| Bacterial leaf blight | Intermediate | Took a middling share of damage |
| Brown planthopper | Moderately susceptible | Took clear damage |
| Green leafhopper | Intermediate | Took a middling share of damage |
So scout early for brown planthopper. When you see the first signs, check the guide before you spray, because the right timing saves more than an extra dose. If you are not sure what you see, our pest and disease finders help you name it from the damage.
Grain and eating quality
| Measure | Value | Class |
|---|---|---|
| Amylose | 26.5 percent | High |
| Grain shape, length to width | 1 | Bold |
Amylose decides how rice cooks. With high amylose, expect rice that is firm and dry, and it hardens as it cools. In fact, Filipino taste has moved from high to intermediate and low amylose rice, because people want it softer.
Where should you plant it?
It suits cool, elevated places such as the rice terraces of the Cordillera, where the nights stay cold. So use it where lowland varieties grow too slowly or set too few grains. It is recommended for the dry season and the wet season. You can plant it dry direct seeded, transplanted or wet direct seeded. For the right month in your province, see the best time to plant rice.
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 freeVarieties like this one
These come from the same kind of farm and grow about as long. So if seed of this one is hard to find, compare these first.
- PSB Rc 96: 136 days, 3.6 tonnes per hectare on average, 2001
- NSIC Rc 562: 143 days, 4.3 tonnes per hectare on average, 2019
- PSB Rc 94: 133 days, 3.3 tonnes per hectare on average, 2001
- PSB Rc 92: 131 days, 3.6 tonnes per hectare on average, 2001
What is the local name of PSB Rc 46?
How many days does PSB Rc 46 take to harvest?
What is the average yield of PSB Rc 46?
In which season should I plant it?
Is this variety a hybrid?
What should I watch for when I plant it?
See how PSB Rc 46 will do on your farm
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