Hualiangyou 1206 [rice]

Hualiangyou 1206

Variety source: a two-line middle hybrid rice variety bred by Huazhong Agricultural University using "Hua 201s" as female parent and "T226" as male parent. It was approved by Hubei crop Variety approval Committee in 2005, and the variety approval number is Eshendao 2005003.

Quality and yield: participated in the regional trial of medium rice varieties in Hubei Province from 2003 to 2004. the rice quality was determined by the Food quality Supervision, Inspection and Test Center of the Ministry of Agriculture, the roughness rate was 81.4%, the head rice rate was 58.8%, the chalky grain rate was 60%, and the chalkiness was 9.6%. Amylose content 21.7%, gel consistency 66 mm, aspect ratio 2.7. The average yield per mu in the two-year regional trial was 563.25 kg, which was 5.35% higher than that of the control Ⅱ you 725. Among them, the yield per mu in 2003 was 554.65 kg, which was 9.93% higher than that of Ⅱ you 725, which was very significant; in 2004, the yield per mu was 571.84 kg, 1.25% higher than that of Ⅱ you 725, which was not significant.

Characteristics: moderate plant type, dark green leaves, short sword leaves, leaf sheath and glume tip purplish red. The tillering ability is strong, the field growth potential is medium, and the lodging resistance is general. The ear layer is not neat, the short grain is awnless, and the color is better in the later stage. In the regional test, the effective panicle per mu was 191000, the plant height was 116.6 cm, the ear length was 24.4cm, the total grains per panicle was 159.2, the number of filled grains was 128.6, the seed setting rate was 80.8%, and the 1000-grain weight was 25.85g. The whole growth period is 135.8 days, which is 4.5 days shorter than that of Ⅱ You725. The resistance was identified as highly susceptible panicle neck blast and moderately susceptible to bacterial blight.

Main points of cultivation: 1. Sowing at the right time to cultivate strong seedlings with tillers. The seeds were sown in the middle of April in northern Hubei, and in the first and middle of May in Jianghan Plain and eastern Hubei. The sowing amount per mu in the seedling field is 1012kg, and the seed consumption in the field is 1.012kg / mu. Strengthen the management of seedling field and promote low tillering. 2. Transplanting in time and reasonable close planting. The seedling age is 25-30 days. The plant row spacing is 13.3cm × 23cm or 16.7cm × 20cm, with 1-2 grain seedlings per hole and 8-100000 basic seedlings per mu. 3. Strengthen the management of fertilizer and water to promote early onset. Organic fertilizer and compound fertilizer were used as base fertilizer, tillering fertilizer was applied early, urea was applied 5-7.5 kg per mu after seedling turning green, and 2.5 kg urea was applied as flower-promoting fertilizer at booting stage. Drying the field at the right time, dry and wet management in the later stage, pay attention to prevent lodging. 4. Pay attention to the prevention and control of diseases and insect pests such as rice blast, rice grain smut, sheath blight and borer.

Suitable range: suitable for planting medium rice outside the mountainous area of southwestern Hubei Province.