Variety name: Yuan Wah 1 16.
Breeding units (individuals): Cao Piyuan and Xu.
Variety source: WFC0 142×WFC0296.
Characteristics: It takes 104 days from emergence to maturity in northern extremely early-maturing corn area, which is 3 days later than Jichengdan No.3, and the effective accumulated temperature is about 2 100℃. The seedlings have purple leaf sheaths, green leaves and green leaf margins. The anther is yellow and the glume is green with purple stripes. The plant type is semi-compact, the plant height is 227 cm and the ear height is 80 cm. The number of leaves per plant is 16 ~ 17. Filaments are light purple, the ear is conical, the ear length is 17 cm, the number of rows per ear is 14, the ear axis is red, the grain is orange and hard. One hundred capsules weigh 30.5 grams. The average lodging rate is 6.2%. After two-year inoculation and identification by the Institute of Plant Protection of Jilin Academy of Agricultural Sciences and Heilongjiang Academy of Agricultural Sciences, it was resistant to corn borer, moderate resistance to leaf spot, stem rot and Curvularia leaf spot, and sensitive to head smut. Grain bulk density is 760g/L, crude protein content is 65438 00.94%, crude fat content is 5.32%, crude starch content is 70.065438 0%, and lysine content is 0.30%.
Yield performance: In 2007-2008, I participated in the regional test of extremely early-maturing maize varieties, and the average yield per mu in two years was 5 13.4 kg, which was 29.0% higher than that of the control Jichengdan No.3. In the production test in 2008, the average yield per mu was 565,438 09.3 kg, which was 65,438 09.8% higher than that of the control Jichengdan No.3.
Key points of cultivation techniques: the suitable density per mu is 4500 ~ 5000 plants for cultivation in plots with medium fertility or above. Pay attention to prevent head smut and lodging (folding).
Examination and approval opinion: This variety conforms to the national maize variety examination and approval standard and has passed the examination and approval. It is suitable for planting in the northern cold area of Chengde, Hebei, the eastern part of the fourth accumulated temperature zone of Heilongjiang, Chifeng, Inner Mongolia, Yan 'an, Shaanxi, Kashgar, Xinjiang and Guyuan, Ningxia. Pay attention to prevent head smut and lodging (folding).
Examination number: Guo Shen Yu 2009003
Variety name: Leo 150
Breeding unit: Shenyang Leo Corn Research Institute.
Variety source: 97 14×z3-87.
Characteristics: It takes 129 days from emergence to maturity in the early-maturing spring corn area in Northeast China, which is earlier than that in Ji Dan (26 1 day), and the effective accumulated temperature is about 2600℃. Seedling leaf sheath is purple, leaf is green, leaf margin is purple, anther is green, glume is green. Flat plant type, plant height 290 cm, ear position 125 cm, leaf number per plant 19. Filaments are purple, ears are long and conical, ears are 20.8cm long, rows per ear 12 ~ 14, ears are red in axis, seeds are yellow and dentate, weighing 43.5g. After two-year inoculation and identification by Institute of Plant Protection of Jilin Academy of Agricultural Sciences and Heilongjiang Academy of Agricultural Sciences, they are resistant to leaf blight and head smut, moderately resistant to stem rot and corn borer. Grain bulk density is 739g/L, crude protein content is 8.40%, crude fat content is 4.765438 0%, crude starch content is 74.05%, and lysine content is 0.25%.
Yield performance: In 2007-2008, I participated in the regional test of early-maturing spring maize varieties in Northeast China, with an average yield of 726.9 kg per mu in two years, which was 6.7% higher than that of the control Ji Dan 26/kloc-0. In the production test in 2008, the average yield per mu was 69 1.7 kg, which was 4.6% higher than that of the control Ji Dan 26 1.
Key points of cultivation techniques: The suitable density per mu is about 3500 plants for cultivation in plots with medium fertility or above.
Examination and approval opinion: This variety conforms to the national maize variety examination and approval standard and has passed the examination and approval. Suitable for spring sowing in the eastern mountainous area of Liaoning, the middle mature area of Jilin, the upper limit of the first accumulated temperature zone in Heilongjiang and Chifeng, Inner Mongolia.
Examination number: Guo Shen Yu 2009004
Variety name: Hongyu 203
Breeding unit: Jilin Hongye Seed Industry Co., Ltd.
Variety source: L20 1×Y08
Characteristics: It takes 128 days from emergence to maturity in the early-maturing area of Northeast China, two days earlier than Ji Dan's 26 1, and the effective accumulated temperature is about 2600℃. Seedling leaf sheath is light purple, leaves are light green, leaf margin is purple, anther is green, glume is green. The plant type is semi-compact, the plant height is 277 cm, the ear height is11cm, and the number of leaves 19. Filaments are light purple, the spike is cylindrical, the spike is 20cm long, the rows per spike are 16 ~ 18, the spike axis is red, the seeds are orange-red, and the 100-grain weight is 35.5g. After two years' inoculation and identification by the Institute of Plant Protection of Jilin Academy of Agricultural Sciences and Heilongjiang Academy of Agricultural Sciences, it has been found that leaf blight, stem rot, corn borer, Curvularia leaf spot, silk. Grain bulk density was 722g/L, crude protein content was 8.94%, crude fat content was 4.65438 0.6%, crude starch content was 72.86%, and lysine content was 0.26%.
Yield performance: In 2007-2008, I participated in the regional test of early-maturing spring maize varieties in Northeast China, and the average yield per mu for two years was 73 1.0 kg, which was 7.3% higher than that of the control Ji Dan. In 2008, the average yield per mu was 726. 1 kg, which was 9.8% higher than that of the control Ji Dan 26 1.
Key points of cultivation techniques: The suitable density per mu is about 3500 plants for cultivation in plots with medium fertility or above. Pay attention to control Curvularia leaf spot and head smut.
Examination and approval opinion: This variety conforms to the national maize variety examination and approval standard and has passed the examination and approval. It is suitable for spring sowing in the middle mature area of Jilin, the eastern mountainous area of Liaoning, the upper limit of the first accumulated temperature zone in Heilongjiang (except Zhaodong), Hohhot and Chifeng in Inner Mongolia. Pay attention to the prevention and control of head smut.
Examination number: Guo Shenyu 20 100 15.
Variety name: Huahong 898
Breeding unit: Jilin Wangyi Seed Industry Co., Ltd.
Variety source: 428×86 1
Characteristics: It takes 107 days from emergence to maturity in northern extremely early-maturing corn area, which is 2 days later than Jichengdan No.3, and the effective accumulated temperature is about 2200℃. Seedling green, leaf sheath purple, leaf green, leaf margin purple, anther purple, glume green. The plant type is semi-compact, the plant height is 20 1 cm, the ear position is 67 cm, and the number of leaves 19. Filaments are purple, panicle length is cylindrical, panicle length is 17cm, rows per panicle are 14 ~ 16, panicle axis is white, grain is yellow and half-horse-toothed, and 100-grain weight is 29.5g g. After two-year inoculation and identification by Plant Protection Research Institute of Jilin Academy of Agricultural Sciences and Heilongjiang Academy of Agricultural Sciences, it has been proved that leaf blight, corn borer, head smut and head smut are the most common diseases. Grain bulk density is 7 18g/L, crude protein content 10.75%, crude fat content 4.70%, crude starch content 70.55% and lysine content 0.30%.
Yield performance: In 2008-2009, I participated in the regional test of extremely early-maturing maize varieties, with an average yield of 520.5 kg per mu in two years, which was 20.6% higher than that of the control Jichengdan No.3. In the production test in 2009, the average yield per mu was 527.0 kg, which was 13. 1% higher than that of the control Jichengdan 3.
Key points of cultivation technology: the suitable density per mu is about 4500 plants when cultivated in plots with medium fertility or above. Pay attention to the prevention and control of head smut, stem rot and Curvularia leaf spot, and use it with caution.
Examination and approval opinion: This variety conforms to the national maize variety examination and approval standard and has passed the examination and approval. It is suitable for spring sowing and planting in the northern cold area of Chengde, Hebei Province, the extremely early-maturing area of Jilin Province, the lower limit of the fourth accumulated temperature zone of Heilongjiang Province, the Lingnan area of Hulunbeier, Inner Mongolia, the cold area of western Shaanxi, Longnan, Gansu, Kashgar, Xinjiang, Guyuan, Ningxia and other places. Pay attention to the prevention and control of head smut, stem rot and Curvularia leaf spot.