NK6505 BGT Corn (NK6505): Yield, Maturity and Characteristics
NK6505 BGT corn is a yellow GM hybrid corn variety, also sold or known as NK6505 or NK6505 E Z Refuge. It was registered with the National Seed Industry Council in 2021 as NSIC 2021 GMCn 80. Syngenta Crop Protection AG bred it. It takes about 104 days from planting to the harvest of dry grain, with 11.06 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 NK6505 or NK6505 E Z Refuge, this is the same corn. Its seller and farm sources add notes, listed at the end. 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: about 104 days from planting to the harvest of dry grain.
- Yield: 11.06 tonnes per hectare on average in the trials.
- Plant height: about 256 cm.
- Recommended for: Mindanao.
- Type: Yellow GM hybrid.
Key facts about NK6505 BGT corn
| Trait | What the record shows |
|---|---|
| Registration | NSIC 2021 GMCn 80 |
| Year approved | 2021 |
| Breeder or owner | Syngenta Crop Protection AG |
| Also known as | NK6505, NK6505 E Z Refuge, Syngenta 6505 |
| Type | Yellow GM hybrid |
| Days to harvest | about 104 days |
| Average yield | 11.06 t/ha |
| Plant height | 256 cm |
| Recommended area | Mindanao |
| Ear length (cm) | 18.5 |
| Shelling recovery (percent) | 76.96 |
How long does it take, and how much does it yield?
NK6505 BGT corn takes about 104 days from planting to the harvest of dry grain. That is about the average of the 89 yellow GM hybrid corn varieties with a day count, 105.4 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 11.06 t/ha beats the average of its group, 8.13. It sits in the top 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. Its seller gives 110 to 120 days after planting.
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 |
|---|---|---|
| Corn borer | Resistant | Held up well |
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.
What the grain is like
Its ears grew about 18.5 cm long in the trials. The shelling recovery was 76.96 percent, the share of the ear weight that comes off as grain. A higher share means more grain from every sack of ears.
What its seller and farm sources say
- Yield: Potential 12 t/ha.
- Traits in the seed: BGT stack Bt11 x TC1507 x GA21: Bt proteins against Asian corn borer and other caterpillars, plus glyphosate tolerance (GA21). Sold as EZ Refuge: the brochures say 5 percent refuge seed is already blended in the bag.
- Season: Wet season highland trials, also tested dry season.
- Where: Mid to high elevations in Mindanao.
- Elevation: Mid to high elevation.
- Stand: 71,428 plants per ha, furrows 70 cm, hills 20 cm.
- Tolerant to Gibberella ear rot.
- Grain rated Class A by the company.
- Good standability, brochure says it stands up to wind.
- Easy to dehusk and harvest.
Why farmers know it: on Syngenta's current corn list, its brochure claims the top yield at the Northern Mindanao Agricultural Crops and Livestock Research Complex in 2022 (13.83 t/ha). These are the seller's own figures, from its own trials. So plant a small area first, and compare it with your usual corn on the same ground.
Where and when to plant NK6505 BGT corn
It is recommended for Mindanao. 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.
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 freeCorn 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.
- P3530PW: about 104 days, 6.06 t/ha, 2024
- H101G: about 104 days, 10 t/ha, 2019
- DEKALB 6919S Genuity ®: about 104 days, 9.64 t/ha, 2016
- 30Y80: about 104 days, 5.6 t/ha, 2005
Is NK6505 the same as NK6505 BGT?
How long does it take to harvest?
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Can I save its seed?
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See how NK6505 BGT will do on your farm
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