Hybrid rice

TH3 5 (NSIC Rc 814H) Hybrid Rice: Yield, Maturity and Characteristics

NSIC Rc 814H is a hybrid rice variety for irrigated lowland, sold as TH3 5 and known locally as Mestiso 171. The NSIC approved it in 2026. Mahyco International Philippines bred it. It matures in about 94 days and averages 8 tonnes per hectare.

5 min read Updated October 17, 2026 By the anee.io agriculture team Read it all with Libre + Anee

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 TH3 5, or rice variety 814H, 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 94 days after sowing.
Yield: 8 tonnes per hectare on average, or about 160 cavans of 50 kilograms.
Watch out for: green leafhopper, brown planthopper, stem borer, sheath blight, tungro.
Cooked rice: low amylose, so soft and tender.

Key facts about NSIC Rc 814H

Key facts of NSIC Rc 814H (t/ha means tonnes per hectare)
Trait	Value
Year approved	2026
Bred by	Mahyco International Philippines
Sold as	TH3 5
Local name	Mestiso 171
Type	Hybrid
Growing environment	Irrigated lowland
Maturity	94 days after sowing
Average yield	8 t/ha
Plant height	104 cm

How much does NSIC Rc 814H yield?

On average it gives 8 tonnes per hectare. That is about 160 cavans of 50 kilograms of palay. It sits above the average of the 180 irrigated lowland hybrids on the list, which is 6.9 tonnes. 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 94 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 very early. 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?

Reactions in trials: R resistant, MR moderately resistant, I intermediate, MS moderately susceptible, S susceptible. Some carry a second rating in brackets.
Pest or disease	Rating	What it means
Green leafhopper	Moderately susceptible	Took clear damage
Brown planthopper	Moderately susceptible	Took clear damage
Stem borer	Moderately susceptible	Took clear damage
Rice blast	Intermediate	Took a middling share of damage
Bacterial leaf blight	Intermediate	Took a middling share of damage
Sheath blight	Susceptible	Took heavy damage
Tungro	Susceptible	Took heavy damage

So scout early for green leafhopper, brown planthopper, stem borer, sheath blight, tungro. 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

Grain quality of NSIC Rc 814H
Measure	Value	Class
Amylose	18.3 percent	Low

Amylose decides how rice cooks. With low amylose, expect rice that is soft. 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 irrigated lowland, where you control the water. Level the field well so the water stands evenly, and plant together with the farms around you, so pests cannot move from field to field. Our guide to rice land preparation shows each step. For the right month in your province, see the best time to plant rice.

Plan your next season of NSIC Rc 814H

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.

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Varieties 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.

NSIC Rc 770H: 108 days, 8 tonnes per hectare on average, 2024
NSIC Rc 812H: 104 days, 8.7 tonnes per hectare on average, 2026
NSIC Rc 776H: 106 days, 8.5 tonnes per hectare on average, 2024
NSIC Rc 782H: 108 days, 8.1 tonnes per hectare on average, 2025

Is TH3 5 the same as NSIC Rc 814H?

Yes. TH3 5 is the name it is sold under, and NSIC Rc 814H is its registration with the National Seed Industry Council, where its local name is Mestiso 171. The numbers on this page are for NSIC Rc 814H.

What is the local name of NSIC Rc 814H?

It is known as Mestiso 171. Seed sellers and agriculturists use both names, so ask for either one.

How many days does NSIC Rc 814H take to harvest?

About 94 days after sowing. Then harvest when 85 to 90 percent of the grains are golden yellow.

What is the average yield of NSIC Rc 814H?

It averages 8 tonnes per hectare, about 160 cavans of 50 kilograms. Your own yield depends on water, seed, fertilizer and timing.

Is this variety a hybrid?

Yes. So buy new seed each season, because seed saved from a hybrid crop does not grow true and yields less.

What should I watch for when I plant it?

In trials it was weak against green leafhopper, brown planthopper, stem borer, sheath blight, tungro. So scout from the early weeks and act at the first signs.

Sources

Wikipedia: Hybrid rice, and why its seed is bought each season

See how TH3-5 (NSIC Rc 814H) 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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