Shanyou 92-4 (Rice)

The main results are as follows: (1) Variety source: Shanyou 92-4 is a medium indica late-maturing hybrid rice combination derived from the combination of self-bred restorer line 92-4 and Zhenshan 97A in Neijiang Hybrid Rice Science and Technology Development Center.

(2) characteristics: the whole growth period is 149 days, the population is neat, and the stem is thick and resistant to lodging. Vigorous growth at seedling stage, strong tillering ability, compact plant type, good luxuriance, large panicle capacity, long leaves and no premature senescence. Plant height 110 cm, ear length 24 cm, ear flat grain 140, ear type medium, seed setting rate 85%, 1000-grain weight about 28 grams, resistance to rice blast better than Shanyou 63, medium quality.

(3) yield performance: group B in the provincial regional test in 1996 and group An in the provincial regional trial in 1997 produced an average yield of 573.75 kg per mu, 2.61% higher than that of the control. In 1998, production tests were conducted in Guangyuan, Dachuan, Leshan, Jiangyou and Jianwei counties, with an average yield of 609.94 kg per mu, 9.08% higher than that of Shanyou 63.

(4) cultivation essentials: ① was sown in the middle and last ten days of March in southeastern Sichuan, in the first ten days of April in northwest Sichuan, and in the first ten days of March in the regenerated rice area, and the seedling age was 35-45 days. ② planted 1.3-15000 nests per mu, and two plants were planted. The effective panicle is controlled at 17-190000 panicles. ③ is medium to high in fertilizer and water management.

(5) suitable planting area: suitable for planting in Pingba and hilly areas of our province.