Corn

Super Corn (CX757): Yield, Maturity and Characteristics

Super corn is a yellow hybrid corn variety, also sold or known as CX757. The Philippine Seed Board approved it in 1987. Cargill Seeds bred it. It takes 100 to 103 days from planting to the harvest of dry grain, with 5.85 tonnes per hectare on average in the trials.

4 min read Updated October 23, 2026 By the anee.io agriculture team Read it all with Libre + Anee
A cornfield on a hillside in Pilar, Capiz, its leaves drying close to harvest, the kind of farm where Super corn is grown
Photo: Rochelle Vergara, CC BY SA 4.0, via Wikimedia Commons

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 CX757, this is the same corn. Compare it with the others in our corn variety finder, or see every crop variety we list. For the crop itself, read our guide: Pagtatanim ng mais, step by step.

  • Days to harvest: 100 to 103 days from planting to the harvest of dry grain.
  • Yield: 5.85 tonnes per hectare on average in the trials.
  • Plant height: about 167 cm.
  • Type: Yellow hybrid.

Key facts about Super corn

Key facts of Super
TraitWhat the record shows
RegistrationPhilippine Seed Board
Year approved1987
Breeder or ownerCargill Seeds
Also known asCX757
TypeYellow hybrid
Days to harvest100 to 103 days
Average yield5.85 t/ha
Plant height167 cm

How long does it take, and how much does it yield?

Super corn takes 100 to 103 days from planting to the harvest of dry grain. That is about the average of the 215 yellow hybrid corn varieties with a day count, 103.6 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 5.85 t/ha trails the average of its group, 7.17. It sits in the lower quarter of its group. One tonne of shelled corn fills about 20 sacks of 50 kilograms. 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?

Reactions in trials, rated under natural field conditions
Pest or diseaseRatingWhat it means
Corn borerTolerantTook damage but still yielded

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. Read up on Asian corn borer.

The pests and diseases that hit corn fields most often: Asian corn borer, banded leaf and sheath blight, Corn downy mildew, Corn ear rot, Corn earworm. Our pest finder and disease finder help you name what you see.

Where and when to plant Super corn

Start with the color your buyer pays for: yellow corn goes to feed mills, while white and glutinous corn go to the table. Next, pick between a hybrid, which yields more but needs new seed every season, and an open pollinated variety, whose seed you can save. Then match the island group in its recommendation, because trials in Luzon and Mindanao give different winners. Before planting, get the field ready with our guide: Land preparation for corn.

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.
Plan your next corn season

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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Corn varieties like this one

These are the closest matches among the corn varieties we list. So if seed of this one is hard to find, compare these first.

  • CW 801: 100 to 103 days, 7.55 t/ha, 2004
  • AG 8314 B: 100 to 103 days, 8 t/ha, 2000
  • DK 999: about 102 days, 7.22 t/ha, 1999
  • CW 108: 100 to 103 days, 6.52 t/ha, 1997
Is CX757 the same as Super?
Yes. CX757 is another name for Super. Seed sellers use both, so ask for either one.
How long does it take to harvest?
It takes 100 to 103 days from planting to the harvest of dry grain. Then the weather and your care decide the exact day.
What is its yield?
The record shows 5.85 tonnes per hectare on average in the trials. Your own yield depends on the soil, water, fertilizer and pests on your farm.
Can I save its seed?
No. It is a hybrid, so seed saved from it does not grow true and yields less. Buy new seed each season.
Where can I buy seed of Super?
Ask an accredited seed dealer in your province, the seller named on this page or your municipal agriculturist. Look for the certified seed tag or a sealed pack before you pay.

See how Super 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.