Detailed Introduction to the Rice Variety Liaoyan No. 2

Breeding institution: Liaoning Institute of Saline-Alkali Land Utilization.

Approval status: approved by the Liaoning Provincial Crop Variety Approval Committee in 1988, and by the National Crop Variety Approval Committee in 1991.

Variety registration number: GS01022-1990.

Variety source: systematically selected and bred from the Fengjin variety.

Characteristics: a late-maturing japonica rice variety. Plant height about 90 cm, compact plant type, sturdy seedlings, well-developed root system, many tillers, relatively long flag leaf, effective tillering rate above 70%, effective panicles per mu 300,000-350,000, grains per panicle 90-110, seed setting rate above 85%, 1000-grain weight 26 g. In Liaoning, the growth period is 160 days, requiring an active accumulated temperature of 3300°C, resistant to rice blast, moderately resistant to bacterial leaf blight, resistant to lodging, drought-tolerant, saline-alkali tolerant, and matures with green stalks. Average yield about 500 kg per mu.

Cultivation points: sow 100-150 g of dry seed per sq m, transplanting spacing of 27 cm x 12 cm or 27 cm x 15 cm is suitable, 3-4 seedlings per hill, apply 60-70 kg of ammonium sulfate per mu.

Suitable range: the planting areas of Fengjin and Liaojing No. 5 in Liaoning Province, as well as the planting areas of the Zhongdan No. 2 variety in North China and Northwest China.