Detailed Introduction to the Chuanmai 107 Wheat Variety

(1) Variety source: Chuanmai 107 (original code Chuanmai 89-107) was developed by the Crop Research Institute of the Sichuan Academy of Agricultural Sciences through hybridization using 2469 as the female parent and 80-28-7 as the male parent, followed by six years and six generations of selection.

(2) Characteristics: This variety is spring-type with a green coleoptile, semi-erect young seedlings, green leaves, and a plant height of 85-90 cm. The stems are thick with light wax bloom. The leaves are medium in size and slightly drooping. The spike is rectangular, with relatively dense spikelets, long awns, white glumes, and a prominent keel. The whole growth period is about 190 days, two days later maturing than the control, with good color fading and yellowing, white-skinned grains, oval shape, shallow ventral groove, semi-hard texture, uniform spikes, a 1000-grain weight of about 45 g, and good grain marketability. Quality and resistance evaluation results: crude protein content 14.6%, wet gluten content 33.8%, flour yield 78.6%, test weight 793 g/L, high to moderately resistant to stripe rust, moderately susceptible to powdery mildew and Fusarium head blight.

(3) Yield performance: In the 1997 provincial regional trial, the average yield was 253.2 kg per mu, a 5.4% decrease compared with the control variety Mianyang 26. In 1998 and 1999, it continued in the provincial regional trial, with average yields of 354.8 and 319.3 kg per mu respectively, increases of 5.02% and 12.46% over the control Chuanmai 28, ranking second and third among the tested varieties. In the 1999 production trial, all 5 locations showed increased yield, with an average yield of 347.2 kg per mu, a 13.3% increase over the control Chuanmai 28. Large-scale production demonstrations showed good high-yield potential, adaptability, and stripe rust resistance.

(4) Cultivation points: This variety has a wide sowing window and is sown in our province from Frost's Descent to Start of Winter. The basic seedling population is 140,000-180,000, and a higher basic seedling population is suitable for fields with low fertility. Apply 10 kg of pure nitrogen per mu, use phosphorus and potassium fertilizers in combination, apply heavy basal fertilizer, and apply seedling (topdressing) fertilizer early. In fields with higher fertility and greater density, apply chlormequat at the early jointing stage. Pay attention to controlling aphids during the heading and flowering stages.

(5) Suitable planting areas: Suitable for planting in the flatland and hilly areas of our province.