The stable maize varieties in Huanghuaihai region are Qihua 703, Handan 777, Shanke 6, MY73, Jiaxi 100 and Longchuang 3 10. 1, Qihua 703: compact plant type, plant height about 279 cm, spike height about 109 cm, 20 leaves per plant, half-horse teeth, 100 seeds weighing 35.9 grams, average yield per mu about 1358 kg, and high yield up to 1880 kg. 2. Handan 777: The plant type is semi-compact, the plant height is about 253 cm, the ear height is about 97 cm, the grain is half horse teeth, and the yield per mu is about 1600 kg.
I. Qihua 703
1, plants
(1) The plant is compact, with a plant height of about 279 cm and good stem elasticity. In the population of Huanghuaihai summer maize, the plant has 20 leaves when it grows up, and it takes 102 days from emergence to maturity.
(2) The root system is developed, there are many overlord roots, and the lodging resistance is strong.
2. Ears and grains
(1) spike is tubular, with red spike axis, spike height of about 109 cm, spike thickness of about 4.7-5.2 cm, spike length of about 20.5-30 cm, and rows per spike of 14- 16.
(2) The seeds are yellow, with half horse teeth, and the weight of 100 seeds is 35.9 grams.
Step 3 resist
It was identified that the variety was susceptible to leaf spot disease, highly susceptible to tumor smut, Curvularia leaf spot disease and rough dwarf disease, and moderately resistant to stem rot, southern rust and ear rot.
4. Output performance
This variety is high-yield big-spike corn, with an average yield of about1358kg/mu, and it can reach about1880kg/mu at high yield.
5. Suitable planting area
This variety is suitable for planting in Hubei Province (Xiangyang area), Henan Province, Shandong Province, Hebei Province (Baoding City, southern and southern areas of Cangzhou City), Shanxi Province (Linfen City, Yuncheng City and some Pingchuan areas of Jincheng City), Jiangsu Province, Anhui Province and Shaanxi Province (Guanzhong Irrigation Area).
Second, Han Dan 777
1, plants
It is a dwarf variety with semi-compact plant type, with an average plant height of about 253 cm, high temperature resistance and good lodging resistance.
2. Ears and grains
(1) The spike is tubular, the spike axis is red, the spike height is about 97 cm, the spike length is about 17.6 cm (without bald tip), and the number of rows per spike is 16-8.
(2) The grain is yellow and half-horse-toothed.
Step 3 resist
After identification, it is resistant to leaf spot, leaf spot, rust and bacterial wilt.
4. Output performance
When planted as summer corn, the yield is usually around 1600 kg/mu.
5. Suitable planting area
This variety is suitable for planting in Huaibei and Jianghuai hilly areas, and about 4000 basic seedlings can be reserved when planting.
Third, Shanke No.6
1, plants
The plant type is semi-compact, and the plant height is about 240-258 cm. After growing, the plant has 19-20 leaves, and the whole growth period is 96- 10 1 day when sowing in summer.
2. Ears and grains
The (1) panicle is cylindrical, its axis is white, its height is about 87-92 cm, its diameter is about 4.9-5. 1 cm, its length is about 16.8- 18.9 cm, and its rows per panicle are about16.
(2) The seeds are yellow and dentate, with a 1000-grain weight of 34 1g and high seed yield and bulk density.
Step 3 resist
(1) This variety is resistant to ear rot, stem rot, rust and smut, and moderately resistant to leaf spot.
(2) Good adaptability, resistance to stress, lodging and density.
4. Output performance
The average yield is about 1600 kg/mu, and it can reach about 1800 kg/mu at high yield.
5. Suitable planting area
This variety is suitable for planting in Shaanxi, Shanxi, Huanghuaihai and other places, and 4000-6000 basic seedlings can be left per mu.
Four. MY73
1, plants
(1) The plant is compact, the plant height is about 238 cm, and the grown plant has 20 leaves. The population of summer maize in Huanghuaihai needs 10 1 day from emergence to maturity, which is earlier than Zheng Dan 958 1.3 days.
(2) Leaf sheaths of seedlings are purple and anthers are green.
2. Ears and grains
The (1) spike is cylindrical, with white spike axis, with a spike height of about 94 cm, a spike thickness of about 4.8 cm, a spike length of about 16.6 cm, and rows per spike of 16- 18.
(2) The seeds are yellow and hard, and the weight of 100 seeds is 32.5g. ..
Step 3 resist
It was identified that the variety was resistant to stem rot and moderately resistant to leaf spot, southern rust, smut, Curvularia leaf spot and ear rot.
4. Output performance
(1) In 2018-2019, he participated in the regional test of green channel of Huanghuaihai summer maize group, with an average yield of 678.4 kg per mu in two years.
(2) Production test in 2019 years, with an average yield of 695.5 kg/mu.
5. Suitable planting area
This variety is suitable for planting in Huanghuaihai summer corn area, including Shaanxi Province (Guanzhong Irrigation Area), Hubei Province (Xiangyang Area), Shandong Province, Henan Province, Hebei Province (Baoding City, southern and southern areas of Cangzhou City), Shanxi Province (Linfen City, Yuncheng City and some Pingchuan areas of Jincheng City), Jiangsu Province and the area north of Huaihe River in Anhui Province.
Verb (abbreviation of verb) Jiaxi 100
1, plants
This variety belongs to early-maturing corn, with an average plant height of about 270 cm. When sowing in summer in Huang-Huai-Hai area, the plant has 20 leaves and the whole growth period is 102 days.
2. Ears and grains
(1) The spike is tubular, with red spike axis, with a spike height of about 97 cm, a spike thickness of about 4.7 cm, a spike length of about 18.4 cm, and rows per spike of 14- 16.
(2) The seeds are yellow, with half horse teeth, and the weight of 100 seeds is 34.2g. ..
Step 3 resist
After inoculation, it was identified that the variety was susceptible to smut, high susceptible to rough dwarf disease and Curvularia leaf spot, resistant to small spot disease and southern rust, and moderately resistant to ear rot and stem rot.
4. Output performance
This variety belongs to high-yield and big-spike corn, with an average yield of about 1500 kg/mu and a high yield of about 2000 kg/mu.
5. Suitable planting area
This variety is suitable for planting in Hubei Province (Xiangyang area), Shaanxi Province (Guanzhong irrigation area), Henan Province, Shandong Province, Hebei Province (Baoding City, southern and southern areas of Cangzhou City), Jiangsu Province, Anhui Province, north of Huaihe River and Shanxi Province (Yuncheng City, Linfen City and some Pingchuan areas of Jincheng City).
Six, Longchuang 3 10
1, plants
Compact plant type, neat emergence and strong soil arching ability. The average plant height is about 264 cm, and the grown plant has 19-20 leaves.
2. Ears and grains
(1) The spike is tubular, with red spike axis, with a spike height of about 96 cm, a spike thickness of about 4.9 cm, a spike length of about 17.6- 19.7 cm, and rows per spike of 14- 16.
(2) The seeds are yellow, with half horse teeth, and the weight of 100 seeds is 36.9 grams.
Step 3 resist
After inoculation and identification, it was moderately resistant to stem rot, ear rot and southern rust.
4. Output performance
When planted as summer corn, the average yield is usually around 1349 kg/mu, and it can reach about 2020 kg/mu at high yield.
5. Suitable planting area
(1) Mid-late maturing spring maize areas in Northeast China and North China
It can be planted in Jilin Province (southern Tonghua City, Songyuan City, Siping City, most areas of Changchun City, and some areas of Liaoyuan City, Jilin City and Baicheng City), Liaoning Province (most areas except eastern mountainous areas, Dalian City and donggang city City), Beijing-Tianjin spring sowing area and Shanxi Province (Xinzhou City, Jinzhong City, Taiyuan City, Jincheng City, Changzhi City, Yangquan City and Lvliang City).
(2) Huanghuaihai Summer Maize Region
It can be planted in Hubei Province (Xiangyang area), Shaanxi Province (Guanzhong irrigation area), Henan Province, Shandong Province, Hebei Province (Baoding City, southern and southern parts of Cangzhou City), Jiangsu Province, Anhui Province, north of Huaihe River and Shanxi Province (Linfen City, Yuncheng City and some Pingchuan areas of Jincheng City).