Variety development

Nguyen Trung Duc is a co-author of 5 corn hybrids bred at Vietnam National University of Agriculture (VNUA) and officially recognized for circulation; 4 of them are also protected under Vietnam’s plant-variety-protection system.

VNUA168

Fresh-eating sweet corn hybrid · first filed as “Fruit Corn 168”

Purple kernels. Rated very sweet to sweet and aromatic in the official trials, and moderately resistant to sheath blight under artificial inoculation.

Recognized

For circulation, Decision No. 821e/QĐ-TTTV-QLG, 14 August 2026 · Reg. No. CNLH.2026.60

Protection

Certificate No. 63.VN.2025 (notice of grant No. 124/TB-TTTV-BHG, 13 August 2025)

Fresh-ear yield

Spring 121.4–157.1 · Winter 127.9–150.5 quintals/ha

Main author: Pham Quang Tuan. Co-authors: Vu Van Liet, Nguyen Trung Duc, Vu Thi Xuan Binh, and Nguyen Thi Nguyet Anh.

FC369

Fresh-eating sweet corn hybrid · introduced as “Snow White”

Milky-white kernels carrying the double-recessive sh2sh2wxwx combination of the supersweet and waxy genes. Rated very sweet to sweet, rich-tasting and aromatic in the official trials, and moderately resistant to sheath blight under artificial inoculation.

Recognized

For circulation, Decision No. 819e/QĐ-TTTV-QLG, 13 August 2026 · Reg. No. CNLH.2026.59

Protection

Certificate No. 121.VN.2026 (granted by Decision No. 971e/QĐ-TTTV-QLG, 19 September 2026)

Fresh-ear yield

Spring 118.2–161.3 · Winter 119.3–156.6 quintals/ha

Main author: Pham Quang Tuan. Co-authors: Nguyen Trung Duc, Nguyen Thi Nguyet Anh, and Vu Thi Xuan Binh.

MH81 (VNUA81)

White waxy-sweet corn hybrid · kernel roughly 80–90% waxy, 10–20% sweet

Milky-white kernels. Rated very sticky to sticky and sweet to slightly sweet in the official trials, and moderately resistant to sheath blight under artificial inoculation.

Recognized

For circulation, Decision No. 818e/QĐ-TTTV-QLG, 13 August 2026 · Reg. No. CNLH.2026.58

Protection

Certificate No. 107.VN.2025 (notice of grant No. 253/TB-TTTV-BHG, 8 December 2025)

Fresh-ear yield

Spring 113.2–141.0 · Winter 110.3–142.6 quintals/ha

Main author: Pham Quang Tuan. Co-authors: Nguyen Trung Duc, Nguyen Thi Nguyet Anh, and Vu Thi Xuan Binh.

VNUA191

Purple waxy corn hybrid · kernel roughly 80–90% waxy, 10–20% sweet

Single-cross hybrid with purple kernels, recognized for the northern mountainous region.

Recognized

For circulation, Decision No. 27/QĐ-TT-CLT, 23 January 2025 · Reg. No. CNLH.2025.11

Protection

Certificate No. 59.VN.2025 (notice of grant No. 67/TB-TTTV-BHG, 30 June 2025)

Fresh-ear yield

Average 120, highest 150 quintals/ha (registration declaration)

Main author: Vu Van Liet. Co-authors: Pham Quang Tuan, Nguyen Trung Duc, Nguyen Thi Nguyet Anh, Vu Thi Xuan Binh, and Tran Van Quang.

VNUA141

Purple waxy corn hybrid

Purple kernels with a relatively high anthocyanin content (over 100 mg/100 g). Moderately resistant to sheath blight under artificial inoculation.

Recognized

For circulation, Decision No. 158/QĐ-TT-CLT, 29 June 2022 · Reg. No. CNLH.2022.31

Fresh-ear yield

100–120 quintals/ha

Main author: Vu Van Liet. Co-authors: Pham Quang Tuan, Nguyen Trung Duc, Nguyen Thi Nguyet Anh, Nguyen The Hung, Nguyen Viet Long, and Vu Thi Xuan Binh.