Fuyou 838 (Rice)

Sichuan Institute of Nuclear Applied Technology was developed by combining the self-bred male sterile line Fu 74A and the self-bred restorer line 838. The whole growth period of the combination was 145 days, which was 6-8 days earlier than that of Shanyou 63 and the same as that of Ai you S. The plant height is 115 cm, the tillering ability is strong, the luxuriance is good, the stem is thick and resistant to lodging, and the color is good in the later stage. The ear is flat with 150 materials, the seed setting rate is 85-90%, and the 1000-grain weight is 28-29 grams. The rate of brown rice is G1% and the rate of milled rice is 70%. The taste and appearance quality of Shanyou 63 is similar to that of Shanyou 63. Moderate resistance to rice blast, two years of inoculation identification of leaf blast grade 3-5, neck blast grade 0-5. He participated in the provincial and regional tests in 1995 and 1996, with an average yield of 507.9 kg per mu and 534.37 kg per mu, which was 477.65 kg higher than that of the control Shanyou 195, with an increase of 11.87%. The average yield per mu in the provincial test in the past two years is 521.14 jin. In 1995, he participated in the regional test of the national medium indica early and middle maturity group of southern hybrid rice, and the average yield per mu was 562.17 kg, 15.2% higher than that of the control Weiyou 64. In 1996, the average yield per mu in the national regional trial was 528 kg, which was 16.12% higher than that of the control. In 1996, the average yield per mu of 3250 mu in Wuhou District of Chengdu was 530kg, which was 42.1kg and 7.8% higher than that of local varieties. The combination is resistant to rice blast and has good yield, so it is suitable to be planted in Pingba and hilly areas of northwest Sichuan.