K you 402 (Rice)

Breeding unit: Rice Sorghum Research Institute, Sichuan Academy of Agricultural Sciences.

Approval: it was approved by Sichuan crop Variety approval Committee in 1994 and by the National crop Variety approval Committee in 1998.

Variety approval number: national examination and approval rice 980008.

Variety source: KI7AX402.

Characteristics: early indica varieties. The plant is 95 cm tall, the sword leaf is stiff, and the main stem has 14 leaves. The ear length is 10 cm, the effective ear per mu is 20010 million, each ear has 120 grains, the seed setting rate is 80%, the seed setting rate is 85%, and the 1000-grain weight is 29-30 grams. The whole growth period was 116.3 days, which was 3.8 days later than that of Weiyou 48mur2. It has good yield, medium rice quality and medium resistance to rice blast and bacterial blight. Cold tolerance and strong tillering ability at seedling stage. In the national indica hybrid early rice regional test from 1995 to 1996, the average yield per mu was 451.4 kg, 9.59% higher than that of Weiyou 48mur2. In the production test in Sichuan Province in 1995, the average yield per mu was 506.2 kg, which was 10.38% higher than that of Huhong.

Cultivation points: 1.5-1.8 kg of seeds per mu, and the soaking time of seeds is 1 day longer than that of Shan An and other combinations. The planting density is 13 cm X 20 cm, and the planting density is not less than 20,000 holes per mu, and 3 seed seedlings are planted in each hole. Jinggangmycin was used to control sheath blight twice in the peak tillering stage.

Suitable scope: Sichuan, Zhejiang and other provinces.