High Quality B You 268 Rice Seed

Variety source:

A mid indica late maturing hybrid rice variety, which was bred by the Rice Research Institute of Southwest University of Science and Technology with the self bred male sterile line B2A and the self bred restorer line Xikehui 768.

Characteristics:

The average growth period of this variety in the two-year regional trial is 149.9 days, 1.1 days longer than that of the control Gangyou 725. The plant height is 117.2 cm, and the plant type is moderate. The effective spike per mu is 138000, the spike length is 24.0 cm, the average grain per spike is 168.0, the seed setting rate is 85.1%, the 1000 grain weight is 30.6 g, the spikelet tip is purple, and there is a top awn. Quality determination: roughness rate 81.2%, chalkiness 14.0%, gel consistency 70mm, protein content 8.5%. Identification of resistance to rice blast: Grade 4, 6, 4 and 5 of leaf blast and Grade 7, 3, 5 and 5 of neck blast in 2011; In 2012, leaf blast was classified as Grade 5, 5, 5, and neck blast was classified as Grade 7, 7, 5, and 5.

Output performance:

In 2011, he participated in 9 regional trials of late maturing medium indica rice in Sichuan Province, with an average yield of 557.49 kg/mu, 2.87% more than the control Gangyou 725; In 2012, 10 groups of late maturing medium indica rice continued to test, with an average yield of 570.03 kg per mu, which was 6.51% higher than the control Gangyou 725. The average yield per mu in the two-year regional trial was 563.76 kg, 4.68% higher than that of the control Gangyou 725. The average yield increase point rate of the two-year regional test was 82%. In the production test in 2013, the average yield per mu was 566.01kg, 4.83% more than the control Gangyou 725.

Key cultivation points:

① Timely sowing and cultivating strong seedlings;

② Reasonable close planting;

③ Fertilizer and water management: scientific formula fertilization, heavy base and early recovery, combined application of nitrogen, phosphorus and potassium, scientific management of water;

④ Disease and pest control: according to the prediction and forecast of plant protection, comprehensively control the disease and pest, and pay attention to the control of rice blast.