Jinyou 527 (rice)

Characteristics: This variety belongs to Indica three-line hybrid rice. The average growth period of rice planted in the upper reaches of Yangtze River is 151.2 days, which is 1.4 days earlier than that of control Shanyou 63. Plant height of 111.5 cm, dark green leaves, moderate plant leaf shape, cold resistance is weak, ripe period color change is good. The effective panicles per mu were 165,000, panicle length 25.7 cm, total grains per panicle 161.7, seed setting rate 80.9%, 1000-grain weight 29.5 g. Resistance: blast 9, bacterial blight 5, brown planthopper 7. Main rice quality indexes: head rice rate 58.9%, length/width ratio 3.2, chalkiness rate 17%, chalkiness degree 2.9%, gel consistency 62 mm, amylose content 23.3%.

Yield performance: In 2002, the average yield per mu was 589.88 kg, which was 8.97% higher than that of Shanyou 63 (very significant); in 2003, the average yield per mu was 625.91 kg, which was 8.62% higher than that of Shanyou 63 (very significant); in two years regional test, the average yield per mu was 609.02 kg, which was 8.78% higher than that of Shanyou 63 (very significant). In 2003, the average yield per mu was 579.00 kg, which was 5.63% higher than that of Shanyou 63.

Cultivation techniques: 1. Sowing: sowing at the same time as Shanyou 63 according to local planting habits, sowing amount per mu seedling field is 10kg;2. Transplanting: seedling age is controlled at 40 - 45 days, basic seedlings per mu are 110 - 130,000;3. Fertilizer and water management: pure nitrogen is applied 10 - 12kg per mu, heavy bottom is early chased, phosphorus and potassium fertilizer are added. Water slurry management should be dry and wet alternately, and dehydration should not be premature in the later stage;4. Prevention and control of diseases and insect pests: pay special attention to the prevention and control of rice blast and bacterial blight.

Examination and approval opinions: After examination, this variety meets the national rice variety examination and approval standard and passes the examination and approval. The variety has moderate maturity, high yield, high susceptibility to rice blast, moderate susceptibility to bacterial blight and excellent rice quality. It is suitable for planting mid-season rice in Yunnan, Guizhou, Chongqing (except Wuling Mountain area), Pingba rice area in Sichuan and light blast area in southern Shaanxi.