Introduction
A medium-grain three-line hybrid rice variety.
The results of the two-year regional test in 2020 and 2021: the average plant height is 123.4 cm, the effective panicles per mu are 166,000, the total number of grains per panicle is 213.1, the fruit set rate is 85.3%, and the thousand-grain weight is 27.2 grams. The whole growth period is 134.0 days, which is 2.7 days shorter than the control (Fengliangyou No. 4). After disease resistance identification, the rice is resistant to rice blast in 2021 (comprehensive resistance index 3.8), and the rice quality in 2020 is the second-class high-quality standard of the Ministry of Agriculture and Rural Affairs after inspection by the Rice and Product Quality Supervision and Inspection Center of the Ministry of Agriculture and Rural Affairs.
Features
A mid-season three-line hybrid rice variety. The results of the two-year regional trials in 2020 and 2021 were as follows: average plant height 123.4 cm, 166,000 effective panicles per mu, 213.1 total grains per panicle, 85.3% fruit set rate, and 1,000-grain weight 27.2 g. The full growth period is 134.0 days, 2.7 days shorter than the control (Fengliangyou No. 4). According to disease resistance identification, in 2020, it was susceptible to rice blast (comprehensive resistance index 6.0), rice false smut (disease panicle rate 15.0%), and bacterial leaf blight; in 2021, it was resistant to rice blast (comprehensive resistance index 3.8), rice false smut (disease panicle rate 17.0%), and bacterial leaf blight. According to the inspection of the Rice and Product Quality Supervision, Inspection and Testing Center of the Ministry of Agriculture and Rural Affairs, the rice quality in 2020 was the second-class high-quality rice of the Ministry, and the rice quality in 2021 was the ordinary rice of the Ministry.
Production performance
The average yield per mu in the 2020 regional test was 639.27 kg, an increase of 4.40% (extremely significant) over the control; the average yield per mu in the 2021 regional test was 666.67 kg, an increase of 8.06% (extremely significant) over the control. The average yield per mu in the 2021 production test was 669.41 kg, an increase of 8.10% over the control.
Key points of cultivation technology
Sowing period: Sowing in late April to early May. The seed rate per mu of field is 1.0 kg, the sowing rate per mu of seedling field is 10-15 kg, and the seedling age is 25-30 days; 2. Planting density: the row spacing is 16.5×23.1 cm, and 1-2 seedlings are planted in each hole; 3. Fertilization: 30 kg of base fertilizer and compound fertilizer (N:P:K=15:15:15), 10 kg of urea, and 5 kg of potassium chloride are applied per mu of field. After 7 days of transplanting, 10 kg of urea is applied per mu; 4. Irrigation: Planting in shallow water, maintain 2- A 3 cm shallow water layer promotes tillering. When the total number of tillers per mu reaches 150,000-160,000, water should be added in time to bake the field. Light baking is mainly used, and the field should be baked in batches. A 3 cm shallow water layer should be maintained 15-5 days before heading and 5-15 days after heading. Thereafter, the field should be kept moist and irrigated intermittently. The field should be kept dry and wet until the rice matures, and water should be cut off 7 days before maturity. 5. Pest and disease control: Adhere to the principle of “prevention first, comprehensive prevention and control”, and prevent and control rice blast, rice false smut, stem borer, rice planthopper and other pests and diseases in time according to local pest and disease forecasts.
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.
