Hybrid Rice Seed Xuyen Huong Uu 506
- Growth day: Winter-Spring Season 125-130 days; Summer-Autumn Season 105-110 days (if spread sowing might reduce 3-5 days growth day). The North Central Coast provinces shorten the time to 3-5 days. In the South Central region, the winter-spring crop 110 - 115 days, the summer-autumn crop 100 - 105 days.
- Yield: Average yield 8 – 8.5 tons/ha, intensive farming reaches 10 tons/ha.
- Characteristics: average resistant to pests and diseases, wide adaptation. Suitable for lowland, upland.
- Season: All seasons.
- Quality: Delicious, white, softer than Nhi uu 838