Baonong 12 (formerly 892Mui 12) (Rice)

Breeding unit: Shanghai Baoshan District Agricultural improved Variety breeding Farm.

Approval: it was approved by Shanghai crop Variety approval Committee in 1998 and by the National crop Variety approval Committee in 1999.

Variety approval number: national examination and approval rice 99002.

Variety source: 82mi. 2 / Xiushuifang "Zijinnuo" (82mi 2 is the descendant of "Efeng" X "Xinxiu").

Characteristics: mid-maturing late japonica type. The plant height is 110.4 cm in single season and 89.6cm in double season. The stem is stout, the leaf is tall, the leaf color is dark, the plant type is moderate, the field growth is beautiful, the luxuriance is good, and the dividing power is weak. Generally speaking, the effective panicle per mu is about 10,000; the panicle stage is large, the total number of grains per panicle is 100, 105 grains per panicle, the 1000-grain weight is 26-27 grams, the brown rice rate is 83.7%, the milled rice rate is 0.5%, the head rice rate is 66.2%, the chalkiness is 11%, the transparency grade 2, the amylose content is 15.8%, the rice quality is good. The whole growth period is 162.8 days in single season and 133.1 days in double seasons, which is 2 days earlier than Xiushui 11. More resistant to sheath blight and not resistant to rice blast. In 1996, the average yield per mu was 582.3 kg, 10.9% higher than that of Xiushui 11, and the average yield per mu was 514.13 kg, 10.4% higher than that of Xiushui 11, which was 10.4% higher than that of Xiushui 11. In the production test in 1998, the average yield per mu was 486.18 kg, which was 6.4% higher than that of Xiushui 11, which showed good high and stable yield and wide adaptability.

Main points of cultivation: it is suitable for direct seeding at the end of May and early June or sowing rice with throwing seedlings in late May and early June in Shanghai. The basic seedling of transplanting rice is controlled at 80,000-100000, the peak seedling is 300,000-350000, and the effective panicle is 220,000-250000 per mu. The level of total fertilizer consumption was slightly higher than that of Xiushui 17 and other varieties. Pay attention to the prevention and control of rice blast.

Suitable scope: planting in the area with light incidence of rice blast in the japonica rice area of the Yangtze River basin.