HORIZON AG NEWS

Raising the Floor on Milling Performance

Over the past several years, milling performance across the industry has come under pressure. The traditional 55% whole and 70% total benchmark isn’t automatic anymore.

The truth is straightforward: final milling out-turn is controlled by both genetics and environment. Even strong genetics can suffer in a poor harvest environment, and varieties with lower genetic milling potential are even more vulnerable under stress.

Recent Arkansas Rice Performance Trial (ARPT) data reinforces the importance of genetic selection. In both 2024 and 2025, semi-dwarf varieties led long-grain entries in whole milled rice. In 2024, hybrids averaged 9% lower whole milled rice than semi-dwarfs; in 2025, they averaged 5% lower. Conventional-statured pure lines were 3% lower in 2024 and just 1% lower in 2025.

But genetics alone don’t protect milling.

Environment plays an equally important role. In 2025, five of eight ARPT locations averaged 55% whole milling or better, while three averaged 48%, 43% and 43%. A deeper look revealed a strong negative correlation (r = -0.54) between whole milling and days from emergence to harvest. Locations harvested within approximately 130 days from emergence produced the highest whole milling. Locations harvested beyond 145 days saw significantly lower results.

Our production systems have changed. We plant faster. More acres mature at the same time. Harvest windows are compressed. These factors increase the risk of over-mature rice and reduced milling.

In South America, competitors routinely begin harvest at 24–25% moisture to protect milling potential and expand harvest capacity. Harvesting earlier allows a greater percentage of acres to be cut within the optimal window.

If planting remains concentrated within a narrow window, harvest management must adjust accordingly. Earlier harvest strategies and stronger milling genetics can help raise the floor — protecting returns from the field to the mill.

Profitability today is no longer just about bushels. It is about protecting quality, maximizing technology investment and managing harvest logistics strategically.

With the right genetics and the right harvest strategy, we can raise the floor on milling performance — without giving up yield.

In two weeks, I’ll share how we’re applying this thinking inside the Provisia^® portfolio — and what it means for positioning PVL04 and PVL06 in 2026.

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Tim Walker
CEO
twalker@horizonseed.com

There’s An App For That!

The Horizon Ag Productivity app provides easy access to critical management recommendations and tools, including seeding rates, fertilizer recommendations and other suggested management practices to help you get the most out of our varieties. Updated for 2025, the app is available in the App Store and on Google Play.

Whether you are a long-time Horizon Ag customer or growing our Clearfield and Provisia varieties for the first time, the Horizon Ag Productivity App can be a valuable tool. Available in the App Store or Google Play.

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