Xieyou 5968 (State Review Rice 2004020)

Variety source Xieqingzao A × t5968, breeding unit: Zhejiang Taizhou Agricultural Science Research Institute, Zhejiang Hybrid Rice seed Industry Co., Ltd.

After examination and approval, the variety conforms to the national rice variety approval standard, and passes the examination and approval, and the serial number is National examination and approval Rice 2004020.

According to the characteristics, this variety belongs to indica three-line hybrid rice. the average growth period of one-cropping middle rice in the middle and lower reaches of the Yangtze River is 138.1 days, which is 4.8days later than that of Shanyou 63. The plant height is 117.5 cm, the plant type is moderate, the stem is stout, the population is neat, the growth is luxuriant, and the color changes generally at the mature stage. The number of effective panicles per mu is 179000 ears, ear length is 22.3cm, total grains per panicle is 142.7, seed setting rate is 79.6%, and 1000-grain weight is 29.0g. Resistance: Rice blast 7, bacterial blight 3, brown planthopper 9. Main indicators of rice quality: head rice rate 60.9%, aspect ratio 2.6, chalkiness rate 70%, chalkiness 11.4%, gel consistency 68 mm, amylose content 20.6%.

The yield performance participated in the regional trial of medium indica late maturity and high yield group in the middle and lower reaches of the Yangtze River in 2002. the average yield per mu was 602.71 kg, which was 8.7% higher than that of Shanyou 63 (extremely significant). In 2003, the average yield per mu was 525.06 kg, which was 6.78% higher than that of Shanyou 63 (extremely significant). In the two-year regional trial, the average yield per mu was 561.11 kg, which was 7.73% higher than that of Shanyou 63. In the production test in 2003, the average yield per mu was 497.45 kg, which was 5.45% higher than that of Shanyou 63.

Key points of cultivation

1. Cultivate strong seedlings: sow at the same time with Shanyou 63 according to local planting habits, sowing 7-10 kg per mu and seedling age 35-40 days.

2. Transplanting: 13-16 thousand holes per mu, 2 grain seedlings per hole, 8-100000 basic seedlings per mu

3. Fertilizer and water management: 10 kg of pure nitrogen, 15-20 kg of superphosphate and 7.5-10 kg of potassium chloride are applied per mu to catch up early with heavy bottom, and less flower-protecting fertilizer is applied to seedlings in the later stage. Water slurry management should be frequently irrigated in shallow water, dry and wet in the later stage, and the water should not be cut off too early to ensure its full grouting.

4. control of diseases and insect pests: pay attention to the prevention and control of rice blast.

In the suitable area, this variety has late ripening stage, high yield, susceptible to rice blast, medium resistance to bacterial blight and general rice quality. It is suitable for planting middle rice in the Yangtze River valley (except Wuling Mountain area) in Fujian, Jiangxi, Hunan, Hubei, Anhui, Zhejiang and Jiangsu and in the areas with light incidence of rice blast in the south of Henan Province.