The ST24 rice variety is a high-yielding, delicious rice variety with good salinity tolerance, making it adaptable to the changing climate conditions in many localities.
– Origin: The ST24 rice variety was developed by engineer Ho Quang Cua, Dr. Tran Tan Phuong, and Ms. Nguyen Thi Thu Huong by crossing a famous aromatic rice variety from the Soc Trang region.
– Main features:
+ The ST24 rice variety produces long, white, and beautiful grains that cook into fragrant, soft, and sweet rice. It is well-adapted to changing weather conditions and has a stable yield.
The ST24 rice variety exhibits good tolerance to salinity and alkalinity, making it suitable for cultivation in both paddy fields and rice-shrimp rotation systems. It is resistant to tungro virus, leaf blast, and neck stem borer, but may show mild symptoms of leaf sheath blight if over-fertilized and is moderately susceptible to brown planthopper.
+ Large, plump, and well-filled rice panicles with few empty grains.
– Agronomic characteristics:
+ Short growth time: 103 - 105 days
+ Plant height: 110 – 115cm
+ Density: sowing density is 120kg/ha
+ Good branching capacity
+ Number of rice ears/m2: 280 - 320 rice ears/m2
+ Shape: Tall and sturdy plant with green leaves that is resistant to lodging. The leaves have few sheaths, are durable and long-lasting, and thus support good grain development. The sturdy stem will not lodge if fertilized evenly.
+ Number of filled grains per panicle: 129 – 135 grains
+ Weight of 1000 grain: 23 - 25 grams
+ Productivity cost: 8 - 9 tons/ha
– Pest and disease response: Good alum and salt tolerance. ST24 is not susceptible to inner stripe, leaf blast and cotton collar disease; mild leaf blight infection if over-fertilized; moderately infected with brown planthoppers. However, this rice variety's resistance to brown planthoppers is stronger thanks to its hard seedling and large straw tubes; Very few infected with zebra spots.
– Grain quality: ST24 rice grains have a length of approximately 8-9 mm. ST24 rice produces long, white, and beautiful grains that cook into fragrant, soft, and sweet rice. The rice variety is well-adapted to changing weather conditions and has stable yields.
