Introduction
Five-star good silk seedlings are safe and reliable
Short maturity period: The whole growth period is 133 days, which is 1.0 day earlier than the control variety, and can be planted in oil stubble and wheat stubble.
Resistant to lodging: The plant height is 110-115cm, the stem is thick and flexible; the plant type is compact, and the sword leaves are rolled inward and upward. Under the typhoon and continuous rainy climate conditions in 2021, no lodging occurred in more than 40 demonstration and sales points in Jiangsu, Henan, Anhui, Hubei and other provinces, and the lodging resistance is super strong.
High temperature resistance: Strong heat resistance during the heading period, under the continuous high temperature climate conditions in 2022, the fruit setting rate is as high as more than 90%.
Stable and high yield: 165,000 effective ears per mu, moderate ear length, 216.3 total grains per ear, 85.1% fruit setting rate, and 24.4 grams of thousand-grain weight. There is no reduction in production in disaster years, and higher yields in good years. The average yield per mu is 1500-1600 jin, and the high yield can reach more than 1800 jin.
Resistance to rice blast: According to the resistance identification of the Institute of Plant Protection of Anhui Academy of Agricultural Sciences, the comprehensive resistance index of rice blast is 3.3.
Features
A medium-grained two-line hybrid rice variety. The results of the two-year regional test in 2018 and 2019: average plant height 117.8 cm, 162,000 effective panicles per mu, 216.3 total grains per panicle, 85.1% fruit set rate, 24.4 grams per thousand grain weight. The whole growth period is 133.0 days, 0.8 days earlier than the control variety (Ⅱ You 838). According to the resistance identification of the Institute of Plant Protection of Anhui Academy of Agricultural Sciences, it is resistant to rice blast (comprehensive resistance index 3.3), susceptible to rice false smut (disease panicle rate 17.0%), and susceptible to bacterial leaf blight in 2018; it is resistant to rice blast (comprehensive resistance index 4.0), susceptible to rice false smut (disease panicle rate 19%), 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 the third grade of the Ministry Standard in 2018 and the ordinary grade in 2019.
Production performance
In 2018, the average yield per mu in regional trials was 624.17 kg, a 4.04% increase (significant) over the control variety; in 2019, the average yield per mu in regional trials was 630.85 kg, a 2.93% increase (not significant) over the control variety. In 2020, the average yield per mu in production trials was 636.22 kg, an 8.38% increase over the control variety.
Key points of cultivation technology
Sowing time: sowing in early May, seedling age 30-31 days, sowing amount 10-14 kg per mu; 2. Planting density: plant 1-2 seed 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 it turns green, and the remaining 30-35% is used as ear fertilizer; 4. Irrigation: shallow water moistening promotes tillering, and the field is baked when the number of stem tillers per mu reaches 160,000. It is necessary 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. Pest and disease control: focus on the prevention and control of rice blast, and timely prevent and control 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.
