Chuanmai 39 (formerly Chuan 00062)

Characteristics: Spring sex, average 201.7 days of whole growth period. The seedlings are semi-erect, the tillering ability is medium, the seedling leaves are narrow, and the leaves are dark green. Plant height 89.8 cm, leaf sheath wax powder, stem tough, good lodging resistance. Panicle rectangular, long awn, white shell, white grain, cutin. The average number of ears per mu is 236,000 ears, the number of grains per ear is 35.5, and the 1000-grain weight is 51.3 g. Inoculation resistance identification: leaf rust and stem rust immunity, high resistance to stripe rust, high susceptibility to powdery mildew, high susceptibility to scab. In 2003/2004, the mixed samples were tested as follows: bulk density 807/826 g/l, protein content 14.1/14.2%, wet gluten content 30.2/27.4%, sedimentation value 46.3/45.9 ml, water absorption 62.7/60.9%, dough stability time 5.9/8.4 min, maximum extension resistance 592/532 E. U, tensile area 126.7/102.5 cm2.

Yield performance: In 2002-2003, the average yield per mu of Chuanmai 107 was 297.8 kg, which was 2.4% lower than that of Chuanmai 107 (not significant). In 2003-2004, the average yield per mu was 342.0 kg, which was 2.0% lower than that of Chuanmai 107 (not significant). 2003-2004 The average yield per mu in the annual production test was 358.5 kg, which was 0.9% lower than that of Chuanmai 107.

Key points of cultivation technology: early sowing at appropriate time, frost falling to early winter in sowing period, appropriate increase of sowing quantity, 140 - 180 thousand basic seedlings per mu. Pure nitrogen 10 kg, phosphorus 7 kg, potassium 7 kg per mu, heavy base fertilizer (70%), early seedling fertilizer (top fertilizer 20%) and jointing fertilizer (10%). Pay attention to powdery mildew, scab and aphids.

Examination and approval opinions: After examination, this variety conforms to the national@#@245@#@variety examination and approval standard and passes the examination and approval. It is suitable for planting in Sichuan, Chongqing, Guizhou, Yunnan, southern Shaanxi, Nanyang, Henan and northern Hubei in the winter wheat area of the upper reaches of the Yangtze River.