【Main Characters of Varieties】

Hunan: The growth period is 106.2 days. Semi-compact plant shape, plant height 278.0 cm, ear height 121.2 cm, ear length tube type, ear length 20.0 cm, ear thickness 5.1 cm, bald tip length 1.0 cm, ear row number 16.4 row, row seed number 38.1 grain, The cob is red, the grain is half-horse dent, the grain is yellow, and the 100-grain weight is 34.4 grams. Quality: Whole grain crude protein content is 10.69%, crude fat content is 4.37%, crude starch content is 72.63%, lysine content is 0.34%, bulk density is 740 g/L.

Sichuan: The growth period is 118 days.

Chongqing: This variety is a hybrid corn. The whole growth period averaged 130.6 days, which was 1 day shorter than the control Yudan 8. Seedlings have purple sheaths, green leaf margins, purple glumes, purple anthers, and pink filaments. Semi-compact plant type, plant height 242 cm, ear height 99 cm, adult leaf number 19-20; ear length 20.1 cm, ear thickness 5 cm, bald tip 0.4 cm, ear row number 16.8 row, row seed number 37.3 Grains: long spike-shaped, red cob, yellow, half-dented, 100-grain weight 34.2 g, seed yield 87.3%

【Adaptability】

Hunan: The average yield per mu in the provincial and regional trials in 2013 was 531.0 kg, an increase of 12.4% over the control Lin'ao No. 1, which was a very significant increase. In 2014, the average yield per mu in provincial and regional trials was 511.5 kg, an increase of 5.6% over the control, and the increase in output was extremely significant. The average yield per mu in the two-year regional trials was 521.3 kg, an increase of 9.0% over the control. Field performance is better than large spot disease, small spot disease and sheath blight, and good lodging resistance.

Sichuan: In 2017, the average yield per mu of the 10 pilot projects was 642.2 kg, which was an increase of 6.3% compared to the control single 30.

Chongqing: In the one-year adaptability test in 2017, the average yield per mu at 10 points was 524.9 kg, which was an increase of 13.2% over the control Yudan 8. Resistance evaluation: resistance to large spot disease, ear rot, medium resistance to small spot disease, sheath blight, and susceptible stem rot.

Guizhou: In 2017, the average growth period of the 8 pilots of the introduction experiment was 126.8 days, and the average yield was 644.2 kg per mu, which was 8.88% higher than the control single 808, and the yield rate was 100%.

【Main cultivation measures】

Hunan: Central Hunan in late March, southern Hunan in mid and late March, and northern Hunan from the end of March to early April. Plant 2600-3000 plants per mu. Apply enough base fertilizer, about 30 kilograms of ternary compound fertilizer per mu. Suitable for seedling fertilizer, 6-8 kg urea per mu. Reapply ear fertilizer, and use 20-25 kg of urea per mu as ear fertilizer when 10 leaves are fully developed. Timely control corn borer and sheath blight, pay attention to nitrogen control in the early stage, and prevent lodging in the later stage.

Chongqing: 1. Suitable for spring planting, planting about 2800 plants per mu at a density; 2. Fertilization and management are the same as general single-cross species, re-application of base fertilizer, jointing fertilizer at appropriate time, and panicle fertilizer.

[Suitable area for planting]

Suitable for planting in Hunan Province; Pingba hilly spring corn type area in Sichuan Province. It is suitable for planting in hills, flat dams and low mountain areas at an altitude of 800 meters and below in Chongqing. It is suitable for areas with medium and above fertile soils below 1500 meters above sea level in Guiyang City, Zunyi City, Qiandongnan Prefecture, Qiannan Prefecture, Tongren City, and Jinsha County of Bijie City. Spring maize is introduced in mountainous and hilly areas at an altitude of 800 meters and below in the western part of Hubei Province. Yunnan Zhaotong City, Kunming City, Lijiang City, Dehong Prefecture four prefectures, Chuxiong Prefecture, Dali Prefecture, Baoshan City, Lincang City, Pu'er City, Qujing City, 1000-2000 meters above sea level 1000-2000 meters above sea level corn planting Area. Spring planting in Guilin and Hezhou, Guangxi.