Longfumai No. 8 wheat variety (original name Longfu 90-83199)

Breeding institution: Crop Breeding Institute, Heilongjiang Academy of Agricultural Sciences.

Approval status: approved by the Heilongjiang Provincial Crop Variety Approval Committee in 1998, and by the National Crop Variety Approval Committee in 2000.

Variety approval number: Guoshenmai 20000011.

Variety source: young ears of the @#@245@#@ pure line K202 were used as explants, irradiated with cobalt-60 rays, and through in vitro induction and tissue culture, selected and bred.

Characteristics: spring type, plant height about 100 cm, awnless, yellow glume, rectangular spike, red grain, vitreous. According to identification, immune to leaf rust and stem rust, moderately resistant to root rot, susceptible to stripe rust, highly susceptible to powdery mildew. 1000-grain weight about 36 g. Test weight 776 g/L, protein content 17.58%, wet gluten content 40.2%, sedimentation value 58.8 ml, water absorption 66.68%, stability time 4 minutes. In 1998 and 1999, it participated in the national Northeast spring wheat regional trial; summarized from 14 locations, it increased yield at 8 locations and decreased at 6 locations, with an average yield of 238.1 kg per mu, 4.4% higher than the control Xinkehan No. 9; in the 1999 production trial, summarized from 4 locations, the average yield was 256.3 kg per mu, 7% higher than the control Xinkehan No. 9.

Cultivation points: autumn land preparation, autumn fertilization, with the fertilizer amount being 2/3 of the total, applying about 11 kg of pure chemical fertilizer per mu, N:P:K=1:1.1:0.4. Treat seeds with chemicals, mechanical sowing. 400,000 basic seedlings per mu, timely compaction after sowing. Press spring seedlings 1-2 times at the three-leaf stage. Chemical weed control, timely disease and pest prevention and control, timely harvest.

Suitable range: planting in northern Heilongjiang and eastern Inner Mongolia in medium water and fertilizer areas with a yield of 250 kg per mu. Pay attention to timely early harvest to prevent grain shattering.