Liaoyan 12 (Rice)

I. Source of varieties

Panjin North Agricultural Technology Development Co., Ltd. was bred in 1998. This variety is a high quality japonica rice with middle and late maturity selected from M146 mutant. It was approved by Beijing in 2000.

2. Characteristic characteristics

The seedlings were planted in Beijing on June 21 and heading on August 13th. the whole growth period was 146 days, which was the same maturity as Jinzhu 1. The growth period is about 157 days in Liaoning, which belongs to the middle and late maturing variety. The seeds germinate strongly, the seedlings are strong, the leaves are semi-erect and green, the roots are well developed, and they are resistant to salt, drought, disease and low temperature. The tillering ability is strong and the panicle rate is high. The effective spike per mu is about 250000 ears in Beijing and 30-350000 in Liaoning. The plant height is about 100 cm, the plant type is compact, the stem is tough and resistant to lodging. In the early growth stage, the leaves are narrow and long, semi-erect, and lifted up after maturity, which is the upper ear of the leaves. Long scattered panicle type, about 20 cm panicle, moderate grain density, about 100 grains per panicle, seed setting rate about 90%, 1000-grain weight about 25 grams, grain yellow long oval, glume tip yellow awnless.

Disease resistance: resistant to seedling blast, ear neck blast, more resistant to sheath blight and stripe blight, and susceptible to bacterial blight.

Quality analysis: Brown rice rate 83.2%, milled rice rate 76.0%, head rice rate 74%, protein content 7.9%, amylose 18.4%, chalkiness 0.7%, chalky rice rate 7.0%, gel consistency 100 mm, gelatinization temperature (alkali elimination value) 7, transparency level 1, grain length 5.2 mm, grain length / width ratio 1.9. Except for the rate of chalky rice and the second grade of amylose, the other 10 indexes reached or exceeded the first grade standard of high quality japonica rice issued by the Ministry of China. This variety has won the International famous Brand Product Award of High quality Rice Variety.

III. Key points of cultivation techniques

Seedling field: sparsely sow dry and raise strong seedlings.

Honda: in the middle and late mature rice areas of Liaoning and North China, dry cultivation and sparse planting should be given priority to, combined with tray cultivation and seedling throwing; in the late mature rice areas of North China, dry planting or multiple planting of wheat and rice can be done; in the middle and late mature rice areas of Northwest China, dry cultivation and transplanting, throwing or placing seedlings can be done. The late ripening rice area can be broadcast live.

Fertilization requirements: 60-70 kg per mu of nitrogen fertilizer (in terms of ammonium sulfate), 10-15 kg of phosphate fertilizer (in terms of diammonium) and 10-15 kg of potassium fertilizer (in terms of potassium sulfate). Combined application of silicon, zinc and other micro-fertilizers.

Water management: Honda should combine deep, shallow and dry water.

IV. Areas suitable for planting

It is suitable to be planted in middle and late maturing and late maturing rice areas in Liaoning, North China and Northwest China.