ⅱ you 92 (Rice)

Breeding unit: agricultural Science Research Institute of Jinhua City, Zhejiang Province.

Approval: approved by Zhejiang crop Variety approval Committee in 1994, Anhui crop Variety approval Committee in 1998, and the National crop Variety approval Committee in 1999.

Variety approval number: national examination and approval rice 990019.

Variety source: Ⅱ-32A//IR209/ test 64Mel 7.

Characteristics: temperature-sensitive hybrid medium indica varieties. The plant height is about 90 cm, the plant type is compact, the stem is thick and tough, the grain is slightly slender, awnless, the Lemma tip is purple. The tillering ability is moderate and strong. The total number of grains per panicle is about 130, the seed setting rate is more than 80%, and the 1000-grain weight is 25ml / 26g. Brown rice rate 82.3%, milled rice rate 74.1%, head rice rate 67.0%, transparency level 1, amylose content 20.7%. Rice looks good and tastes good. The whole growth period of continuous late cultivation is about 125 days, which is 5 days longer than that of Shanyou 64. Resistant to fertilizer and lodging, moderately resistant to rice blast and susceptible to bacterial blight. The average yield per mu is 400 Mu 450 kg.

Main points of cultivation: the sowing date is 5 days earlier than that of Shanyou 63. Sparse sowing and cultivation with tillers and strong seedlings, the seedling age is 30 ~ 35 days, and two stages should be used to raise seedlings in more than 40 days. 810,000 seedlings should be planted per mu. Basic fertilizer should be sufficient, topdressing should be early, and attention should be paid to promoting flower fertilizer. In the later stage, we should maintain dry and wet irrigation, strictly prevent water cut off too early, and pay attention to the prevention and control of diseases and insect pests such as stem borer, rice planthopper, bacterial leaf blight and so on. The initial sowing time of replication Ⅱ-32A was 84 ±2 days, and that of Hui92 was 74 ±2 days.

Suitable range: double-cropping late rice in the south of Zhejiang and Anhui, and demonstration planting in other double-cropping rice areas.