Features
A medium-grained two-line hybrid rice variety. The results of the two-year regional test in 2018 and 2019: average plant height 119.3 cm, 154,000 effective panicles per mu, 210.5 total grains per panicle, 82.1% fruit set rate, 27.5 grams of 1,000-grain weight. The whole growth period is within 135 days, 1.7 days later than the control variety (Ⅱ You 838). According to the resistance identification of the Plant Protection Institute of Anhui Academy of Agricultural Sciences, it was moderately susceptible to rice blast (comprehensive resistance index 5.3), moderately resistant to rice false smut (disease panicle rate 5.0%), and susceptible to bacterial leaf blight in 2018; moderately susceptible to rice blast (comprehensive resistance index 5.5), moderately susceptible to rice false smut (disease panicle rate 10%), and susceptible to bacterial leaf blight in 2019. According to the inspection of the Rice and Product Quality Supervision and Inspection Center of the Ministry of Agriculture and Rural Affairs, it was rated as ordinary in 2018 and high-quality third grade in 2019.
Production performance
The average yield per mu in the regional test in 2018 was 626.6 kg, an increase of 4.44% (extremely significant) over the control variety; the average yield per mu in the regional test in 2019 was 661.81 kg, an increase of 8.03% (significant) over the control variety. The average yield per mu in the production test in 2020 was 626.59 kg, an increase of 6.28% over the control variety.
Key points of cultivation technology
Sowing time: sowing in early May, seedling age 30-31 days, sowing rate 10-14 kg per mu; 2. Planting density: plant 1-2 seedlings per hole, 13.3×26.7 cm; 3. Fertilization: apply 13-14 kg of pure nitrogen per mu in the field. 60% of it is used as base fertilizer, 5-10% is applied as topdressing when the leaves turn green, and the remaining 30-35% is used as ear fertilizer; 4. Irrigation: shallow watering promotes tillering, and the field is baked when the number of stem tillers per mu reaches 160,000. It is better to bake the field as early as possible, and mainly light baking, baking in batches. Cut off water 6-7 days before harvest, and avoid cutting off water too early; 5. Disease and pest control: focus on the prevention and control of rice blast, and timely control of diseases and pests such as borers, rice planthoppers, and sheath blight.
Review opinion
It meets the rice variety approval standards of Anhui Province and has been approved. It is suitable for promotion and planting in the single-season rice areas of Anhui Province, and attention should be paid to the prevention and control of diseases such as rice blast and rice false smut.
