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Detailed introduction to the rice variety Jingyou 14

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Characteristics: This variety is a japonica three-line hybrid rice. Grown in southern Liaoning, southern Xinjiang, and the Beijing-Tianjin region, its full growth period is 154.6 days, 1.9 days later maturing than the control Jinzhu 1. Plant height is 103.5 cm, total grains per panicle 116.4, seed setting rate 88.3%, and 1000-grain weight 26.8 g. Rice blast disease rating is 5. Main rice quality indicators: head rice rate 65.7%, chalky grain rate 30%, chalkiness degree 3.8%, gel consistency 85 mm, and amylose content 16.9%. Yield performance: 200

Characteristics: This variety is a japonica three-line hybrid rice. Grown in southern Liaoning, southern Xinjiang, and the Beijing-Tianjin region, its full growth period is 154.6 days, 1.9 days later maturing than the control Jinzhu 1. Plant height is 103.5 cm, total grains per panicle 116.4, seed setting rate 88.3%, and 1000-grain weight 26.8 g. Rice blast disease rating is 5. Main rice quality indicators: head rice rate 65.7%, chalky grain rate 30%, chalkiness degree 3.8%, gel consistency 85 mm, and amylose content 16.9%.

Yield performance: In 2002, it participated in the regional trial of the Jinzhu 1 group in the northern rice region, with an average yield of 727.9 kg per mu, 15.7% higher than the control Jinzhu 1 (extremely significant); in the 2003 continued trial, the average yield was 701.2 kg per mu, 14.4% higher than the control Jinzhu 1 (extremely significant); the two-year regional trial average yield was 714.6 kg per mu, 15.1% higher than the control Jinzhu 1. In the 2003 production trial, the average yield was 635 kg per mu, 7.7% higher than the control Jinzhu 1.

Key cultivation techniques: 1. Cultivate strong seedlings: sow at the same time as Jinzhu 1 according to local planting practices, with a seedling age of 35-40 days; 2. Transplanting: the planting spacing is 20 x 16.7 cm, with 2-3 seedlings per hill; 3. Fertilization: apply with full-layer fertilization, with 60-70% of nitrogen fertilizer, 50% of potassium fertilizer, and all phosphorus fertilizer applied before land preparation, and the rest as topdressing; all topdressing must be completed within 1 month after transplanting the seedlings; 4. Pest and disease control: pay attention to controlling rice blast.

Approval opinion: Upon review, this variety meets the national rice variety approval standards and has passed approval. This variety has a moderate maturity period, high and stable yield, moderate susceptibility to rice blast, and excellent rice quality. It is suitable for planting in southern Liaoning, central and southern **, Beijing, Tianjin, and northern Hebei in areas with light occurrence of rice blast.

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