Introduction of Longping 2 18 Maize Varieties
Longping 2 18 is a new maize variety selected by Anhui Longping Hi-Tech Seed Industry Co., Ltd., which is later10/day than the control variety Zheng Dan 958.
Longping 2 18 maize varieties have been planted for many years, showing the characteristics of good adaptability, strong stress resistance and high yield, which are well received by farmers, especially in Huang-Huai-Hai areas.
Announcement of Longping 2 18 Maize Seed Examination and Approval
Longping 2 18 was approved by the National Huanghuaihai Summer Maize Region on 20 17, and was approved by the National East and North China Spring Maize Region in 2020. The summary of the reply is as follows:
Examination numbers: Guo Shenyu 20 176057, Guo Shenyu 20206087.
Variety name: Longping 2 18
Applicant: Anhui Longping Hi-Tech Seed Co., Ltd.
Breeder: Anhui Longping Hi-Tech Seed Industry Co., Ltd.
Variety source: LB03×LJ876
Examination and approval opinion: This variety conforms to the national maize variety examination and approval standard and has passed the examination and approval.
Main characteristics of Longping 2 18 maize seeds
Great and even
Longping 2 18 has a barrel-shaped spike with a spike length of 17.9 ~ 24 cm and a maximum of 30 cm, with rows per spike of 16- 18 and a maximum of 20 rows and a spike thickness of 5. 1 cm.
In addition, this kind of corn has red spike, yellow grain and semi-hard grain type, and the weight of 100 grains is 36.5 grams, so it is called the king of sticks.
High temperature and thermal damage
Longping 2 18 leaves are sparse on the top and dense on the bottom, which is ventilated and light-transmitting. There are about 8 branches in the tassel, and the pollen quantity is large.
Moreover, corn varieties have strong heat resistance, even pollination and good fruiting, and they do not spend grains or bald tips in disaster years.
Good disease resistance
Inoculation identification: Longping 2 18 maize is highly resistant to pythium stem rot, moderately resistant to leaf spot and Fusarium stem rot, highly susceptible to Curvularia leaf spot, smut, rough dwarf and ear rot, and the living trees are mature.
Good lodging resistance
Longping 2 18 maize variety has compact plant type, plant height of 270 ~ 290 cm, ear height 108 cm and 20 leaves per plant.
In addition, Longping 2 18 maize has developed roots, many aerial roots, deep roots and strong lodging resistance.
Suitable machine harvesting
Longping 2 18 has strong soil arching ability, early emergence, vigorous seedling stage, good maturity, mature living stalks, fast grain dehydration, no mildew, suitable for mechanical harvesting and avoiding difficulties in later harvesting.
Performance of Longping 2 18 Maize Seed Yield
① Yield per mu of summer sowing in Huanghuaihai.
Longping 2 18 can be planted in spring and summer. Longping 2 18 is a new spring maize variety with high and stable yield.
The regional trial of summer maize varieties in Huanghuaihai was 20 14 ~ 20 15, with an average yield of 724.9 kg per mu in two years. In the production test of 20 16, the average yield per mu of Longping 2 18 was 6 10.9 kg.
② Yield per mu of spring sowing in East China and North China
20 18-20 19 and Longping 2 18 maize varieties participated in the middle-maturing spring maize experiment in East China and North China, and the average yield per mu of Longping 2 18 maize was 8 19.2 kg. The production test in 20 19 years showed that the average yield per mu was 8 14 kg.
③ yield per mu of spring sowing in northwest China
20 18 ~ 20 19, average yield per mu of Longping 2 18 109 1.4 gong; Production test in 205438+09, average yield per mu 1025.38+0 kg.
Key points of maize seed cultivation techniques in Longping 2 18
1, summer corn
In the Huanghuaihai summer maize region, Longping 2 18 maize was cultivated in the middle fertility plot, and was sown in early June, with a planting density of 5000 plants per mu.
2. Spring corn
Longping 2 18 corn seeds are suitable for planting in plots with medium fertility or above in middle-maturing spring corn areas in East China and North China. Sowing in late April to early May, with the planting density of 4000-4500 plants per mu.
In the northwest spring corn area, it is suggested that Longping 2 18 corn seeds should be planted in the area with accumulated temperature above 2700℃, and planted in the middle and late April, with planting density of 4500-5000 plants per mu, and attention should be paid to the prevention and control of Great Leaf Blight.
Warm reminder: The relevant introduction of this article has been sorted out through the network, and the specific information is subject to the introduction of the corresponding seed official website.