Brief introduction of maize variety Zilong 9 15, where is it suitable for planting and how is its yield?

Jilong 9 15 is a maize variety bred by Beijing Jilong Seed Industry Technology Co., Ltd.,

Brief introduction of maize variety Zilong 9 15, where is it suitable for planting and how is its yield?

Jilong 9 15 is a maize variety bred by Beijing Jilong Seed Industry Technology Co., Ltd., with the approval number of Guoshenyu 20 190279 and the variety source of DF 8096× JLN03 1. The maize seed takes 103.5 days from the emergence to maturity of summer maize population in Huanghuaihai, with semi-compact plant type, purple leaf sheath of seedlings, green leaves, purple leaf margin, yellow anther, bright green, long conical spike, red spike axis, yellow seeds and half horse teeth. From April 38, 2065 to July 38, 2065, he participated in the regional test of Huanghuaihai Summer Corn Group Consortium, and the average yield per mu for two years was 665.6 kg, which was 9% higher than that of the control Zheng Dan 958.

I. Crop types

Lianglong 9 15 Crop Variety: Corn

Second, the approval information

1. Approval time: 20 19.

2. Examination number: Guo Shen Yu 20 190279

3. Breeding unit: Beijing Li Long Seed Industry Technology Co., Ltd.

Third, the source of varieties

DF8096？ JLN003 1

Fourth, characteristics

1, Huanghuaihai Summer Maize Population

(1) The period from emergence to maturity is 103.5 days, which is equivalent to the growth period of the control Zheng Dan 958. Seedling leaf sheath is purple, leaf is green, leaf margin is purple, anther is yellow and glume is green. The plant type is semi-compact, the plant height is 272 cm, the ear position is 109 cm, and the number of leaves is 20. The ear is long and conical, the ear length is 20.5 cm, the number of rows per ear is 16~ 18, the ear thickness is 5.4 cm, the ear axis is red, the grain is yellow and half-toothed, and the weight of 100 grains is 39.3 g.

(2) Inoculation identification: moderate resistance to stem rot, leaf spot, ear rot, Curvularia leaf spot, smut and southern rust. Quality analysis: Grain bulk density is 7 12g/L, crude protein content is 9.69%, crude fat content is 3.27%, crude starch content is 70.37%, and lysine content is 0.29%.

2. Northwest Spring Corn Group

(1) The time from emergence to maturity was 13 1.5 days, which was 2 days later than the control Xianyu 335. Seedling leaf sheath is purple, leaf is green, leaf margin is purple, anther is yellow and glume is green. The plant type is semi-compact, the plant height is 299 cm, the ear position is 128 cm, and the number of leaves is 20. The ear is long and conical, the ear length is 20.5 cm, the number of rows per ear is 16~ 18, the ear thickness is 5.4 cm, the ear axis is red, the grain is yellow and half-toothed, and the weight of 100 grains is 40.7 g.

(2) Inoculation identification: moderate resistance to stem rot, ear rot, high sensitivity to leaf blight and head smut. Quality analysis: the grain bulk density is 792g/L, the crude protein content is 7. 16%, the crude fat content is 3. 15%, the crude starch content is 75.69%, and the lysine content is 0.24%.

Verb (abbreviation of verb) output performance

1, 20 17-20 18 participated in the regional test of Huanghuaihai Summer Corn Group Consortium, with an average yield of 665.6 kg per mu in two years, which was 9% higher than that of the control Zheng Dan 958. The production test in 20 18 years showed that the average yield per mu was 587.5 kg, which was 7.8% higher than that of the control Zheng Dan 958.

2.20 17-20 18 participated in the regional test of northwest spring corn group consortium, and the average yield per mu for two years was 1034 kg, which was 3.4% higher than that of the control Xianyu 335. The production test of 20 18 years showed that the average yield per mu 10 19.9 kg was 5% higher than that of the control Xianyu 335.

Key points of cultivation techniques of intransitive verbs

1. Summer sowing in the Huang-Huai-Hai region is generally carried out from late May to early June, and it is planted in middle and high fertility plots with a planting density of 3800-4200 plants per mu. Apply 2000~3000 kilograms of farm manure or 30 kilograms of ternary compound fertilizer as base fertilizer per mu, and 30 kilograms of urea at the big bell mouth stage. Pay attention to the prevention and control of rust and smut.

2. Spring sowing in northwest China is usually sown from late April to early May, and planted in medium and high fertility plots with a planting density of 4500~5000 plants per mu; Apply 2000~3000 kg of farmyard manure or 30 kg of ternary compound fertilizer as base fertilizer per mu, and apply 30 kg of urea topdressing per mu during the big bell mouth period. Pay attention to the prevention and control of ear rot, and use it cautiously in areas with high incidence of leaf blight and head smut.

Seven. Examination and approval opinions

1, approval

Zilong 9 15 meets the national maize variety approval standard and has passed the approval.

2. Suitable planting range

Zilong 9 15 is suitable for planting in south-central Henan Province, Baoding City of Shandong Province, Cangzhou City of Hebei Province, Guanzhong Irrigation District of Shaanxi Province, Yuncheng City of Shanxi Province, Linfen City, Pingchuan District of Jincheng City, north of Huaihe River of Jiangsu Province and Xiangyang District of Hubei Province. It is also applicable to most areas in Bayannaoer City, Inner Mongolia, most areas in Ordos City, Yulin City and Yan 'an City, Shaanxi Province, Yellow River Irrigation District in Ningxia, Longnan City, Tianshui City, Qingyang City, Pingliang City, Baiyin City, Dingxi City and Linxia Prefecture in Gansu Province, and most areas in the west of fukang city.