Characteristics and cultivation techniques of Yumai 70

Yumai 70 was bred in 1995 by the hybrid of Mianyang 84-2 / Neixiang 82C6// Yumai 17 by Institute of Agricultural Sciences, Neixiang County, Henan Province. It was approved by Henan crop Variety approval Committee in 2000.

High yield: White grain. Long awn. Plant height 75cm. The panicle rate of tillers is high. It has the characteristics of high yield, stable yield, high quality, multi-resistance and wide adaptability. From 1996 to 1997, the average yield of Neixiang breeding was 175mu, and the average yield was 517kg, and the display field 615kg was 16.5% higher than that of Yumai 18. From 1997 to 1998, the yield of Nanyang group in Henan regional trial was higher than that of the control. From 1998 to 1999, the ultra-high yield areas of Henan Province tried spring water and fertilizer, and the yield per mu was 538kg, which was 5.73% higher than Yumai 18, 5.73% higher than Yumai 18, and 0.93% higher than Yumai 18 from 1999 to 2000, ranking third. At the same time, Henan Province Baitiaohe Farm and Xinxiang City Dunfangdian Township ten thousand mu demonstration mu yield 550kg, high 650kg. Anhui, Jiangsu, Hebei, Shandong and other places have shown high yield. In general, the number of ears per mu is 410000, the number of grains per ear is 39, and the 1000-grain weight is 42g. The panicle is long and large, and the ear layer in the field is neat. The grain is half-horny, the rate of black embryo is low, and the appearance is good.

Stable yield: stable yield and steady growth. Flowering, grouting, falling yellow and shun. There is no great difference in different regions, different years and different climatic conditions. Through multi-point test and demonstration, the yield per mu exceeded 500kg for 4 consecutive years.

High quality: according to the grain quality supervision, inspection and testing center of the Ministry of Agriculture, the grain contains 15.21% protein, 32.2% wet gluten, 53.28% water absorption of flour, 12.8 minutes of dough stability time, and a comprehensive evaluation value of 80.2 points. to meet the national standard for high quality.

Multi-resistance: high resistance to stripe rust and soil-borne mosaic disease, medium resistance to scab and sheath blight. Compact plant type, medium culm, stout, good elasticity, lodging resistance. In the middle and later period of wheat growth in 2000, there was no rain for more than 5 months, and there was still a large area of 550kg per mu in Dunfangdian Township of Xinxiang City. The overwintering period was safe and sound under the low temperature of-30 ℃ ~-17 ℃ in Hebei and Beijing. In the later stage, the growth was stable and the filling was normal. The leaves are raised narrowly and function for a long time, with good yellowing. The grain is full and does not senescence prematurely.

Adaptability: Henan, Hubei, Anhui, Shandong, Hebei, Shaanxi, Shanxi, Jiangsu, Sichuan, Beijing and so on are suitable for planting. This variety belongs to weak spring mid-early maturing variety and has a long suitable sowing period. Choose neutral or slightly alkaline soil (heavy sandy soil or acidic soil is not suitable), rich in organic matter, suitable for soil moisture preparation. 3000kg farm manure, 20kg diammonium phosphate, 15kg urea, 10kg potassium chloride and some trace elements such as zinc and boron were applied per mu. Those with serious underground pests are treated with phoxim. Seeds without coating can be dried by mixing phoxim and triadimefon with water. It is appropriate to sow seeds on October 10-25, 3-5 days earlier in the north of the Yellow River and 5-10 days later in the south of the Yellow River. The suitable sowing rate per mu is 5~7kg, and the basic seedling is 8-10. Ploughing squatting seedlings, strong seedlings overwintering. Water and fertilizer were adjusted at jointing and filling stages, and potassium dihydrogen phosphate, triadimefon and carbendazim were sprayed from full heading to filling stage to prevent diseases. Harvest as soon as the wax is ripe to prevent pornographic rain, mildew and panicle sprouting.