Irrigated lowland

NSIC Rc 298 (Tubigan 23) Rice Variety: Characteristics and Grain Quality

NSIC Rc 298 is an inbred rice variety for irrigated lowland, known locally as Tubigan 23. The NSIC approved it in 2012. Its days to harvest and trial yield are not published yet, but its pest ratings and grain quality are below.

5 min read Updated October 17, 2026 By the anee.io agriculture team Read it all with Libre + Anee
An irrigated palay field in the Philippines, where NSIC Rc 298 is meant to grow

If you came here looking for rice variety 298, or Rc 298, 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.

  • Season: Dry season and wet season.
  • Holds up against: brown planthopper.
  • Watch out for: rice blast, tungro, stem borer, sheath blight.
  • Cooked rice: intermediate amylose, so soft but not sticky.

Key facts about NSIC Rc 298

Key facts of NSIC Rc 298 (t/ha means tonnes per hectare)
TraitValue
Year approved2012
Local nameTubigan 23
TypeInbred
Growing environmentIrrigated lowland
Recommended seasonDry season and wet season
How to plant itDry direct seeded, transplanted, wet direct seeded
Tested and suited inIlocos

How many days does it take, and how much does it yield?

This variety's days to harvest and trial yields are not published yet. So ask the seed seller or your municipal agriculturist for the figures from the trials in your region before you plan the season. 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. Meanwhile, our guide to raising rice yield per hectare covers the habits that matter with any variety.

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 diseaseRatingWhat it means
Rice blastSusceptibleTook heavy damage
Bacterial leaf blightIntermediateTook a middling share of damage
TungroSusceptibleTook heavy damage
Brown planthopperModerately resistantTook some damage but held up
Green leafhopperIntermediateTook a middling share of damage
Stem borerSusceptibleTook heavy damage
Sheath blightSusceptibleTook heavy damage

So scout early for rice blast, tungro, stem borer, sheath blight. 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 298
MeasureValueClass
Amylose19.5 percentIntermediate
Milling recovery67.7 percentGrade 1
Head rice35.2 percentGrade 3
Chalky grains7.4 percentGrade 2
Grain length7.1 mmLong
Grain shape, length to width3.2Slender
Protein6.7 percent

Amylose decides how rice cooks. With intermediate amylose, expect rice that is soft but not sticky. In fact, Filipino taste has moved from high to intermediate and low amylose rice, because people want it softer. Head rice is the share of whole grains after milling. So a higher number means fewer broken grains and a better price at the mill.

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. It is recommended for the dry season and the wet season. You can plant it dry direct seeded, transplanted or wet direct seeded. It was tested and found suitable in Ilocos. For the right month in your province, see the best time to plant rice.

Plan your next season of NSIC Rc 298

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 free

Varieties like this one

These come from the same kind of farm, with their days and yields. So if seed of this one is hard to find, compare these first.

What is the local name of NSIC Rc 298?
It is known as Tubigan 23. Seed sellers and agriculturists use both names, so ask for either one.
When was NSIC Rc 298 approved?
The NSIC approved it in 2012. Its days to harvest and trial yield are not published yet, so ask for the regional trial figures before you plant.
In which season should I plant it?
It is recommended for the dry season and the wet season. Then pick the month with our planting calendar guide and the forecast for your town.
Is this variety a hybrid?
No, it is an inbred. So the seed you buy grows true, but certified seed still gives the best start.
What should I watch for when I plant it?
In trials it was weak against rice blast, tungro, stem borer, sheath blight. So scout from the early weeks and act at the first signs.
Is it soft when cooked?
It has intermediate amylose, 19.5 percent. So it cooks soft but not sticky.

See how NSIC Rc 298 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.