TeYan jade 998

　　Name of variety: Special Research Jade 998

　　Approval No.: Sichuan Shenyu 20202055

　　Introduction No.: Yu Introduction 2022 No. 060

　　Introduction No.: Guizhou Introduction 2023 No. 177

　　Crop species: Corn

　　Source of varieties: S6973 × WG646

　　FeaturesThe plant type is semi-compact, the angle between the main axis of the tassel and the branch is medium, the anther is yellow, the filament is light purple, the ear is conical, the grain is yellow, the middle type, and the cob is red. In the two-year mountain area test of the Kechuang Corn Consortium in Sichuan Province, the average growth period of spring sowing is 133.0 days, the plant height is 284.0cm, the ear position height is 108.5cm, the ear length is 19.1cm, the ear row number is 16.6, the number of grains is 35.0, the weight of 100 grains is 33.5g, and the seed yield is 82.7. Grain bulk density 800g/L, crude protein 11.6%, crude fat 4.5%, crude starch 70.4%, lysine 0.31%. Resistance to small spot disease, medium resistance to large spot disease, stem rot and spike rot, susceptible to sheath blight and head smut.

　　Yield performance: In 2018, he participated in the regional test of Sichuan mountain area group of the Kechuang Consortium, with an average yield of 547.6kg per mu, 8.6 percent higher than that of the control Quan Yu No. 9; In 2019, the average yield per mu was 540.6kg, 7.8 percent higher than that of the control. In 2019 production test, the average yield per mu was 541.6kg, 7.1 percent higher than that of the control.

　　Suitable planting area: Suitable for spring planting in mountainous areas of Sichuan Province.

　　Name of variety: Special Research Jade 998

　　Crop species: Corn

　　Source of varieties: S6973 × WG646

　　Features: The whole growth period was 137 days, which was 2 days shorter than that of the 335 in the control. The plant height is 296cm, the spike height is 115cm, the plant type is semi-compact, the field grows neatly, and there is no lodging or folding. Ear cone type, grain yellow, semi-hard grain type, cob red. The ear is 20.0cm long, 5.2cm thick, 0.6cm long, the bald tip is 16.5 rows, the number of grains in the ear is 37.4, the weight of 100 grains is 34.0g, and the seed yield is 83.2. High resistance to stem rot, spike rot, resistance to large leaf blight, sheath blight, medium resistance to small leaf blight.

　　Yield performanceThe average yield per mu in the adaptability test in Chongqing is 545.6kg, which is 5.8 higher than that of the control Zhongyu 335.

　　Suitable planting area: suitable for planting in areas above 800 meters above sea level in Chongqing.

　　Name of variety: Special Research Jade 998

　　Source of varieties: S6973 × WG646

　　Features: The average growth period of the introduction test in Guizhou Province in 2022 was 134.1 days, 1.1 days shorter than that of the control Guidan 8. The average yield per mu of the eight pilot projects was 653.9kg, 2.7 higher than that of the control Guidan 8. The rate of increasing production point is 62.5%.

Identification by Guizhou Institute of Plant Protection: high resistance to large spot disease, head smut disease, small spot disease, southern rust, medium resistance to sheath blight, spike rot, gray spot disease.

　　Suitable planting area: Guiyang City, Qianxinan Prefecture, Anshun City, Bijie City, Liupanshui City, above 1900 meters above sea level medium fertility soil areas.