Introduction of varieties of Zhoumai 27

Zhoumai 27 is a semi-winter mid-maturing wheat variety bred by Zhoukou Academy of Agricultural Sciences with Zhoumai 16 and Aikang 58. The seedlings are semi-creeping, the leaves are narrow and long, the tillering ability is general, and the panicle rate is medium. The cold resistance is better in winter. Early jointing in spring, fast polarization, and general ability to resist spring cold.

1. Morphological characteristics of Zhoumai 27

The average maturity of semi-winter mid-maturing varieties was about one day earlier than that of Zhoumai 18. The seedlings are semi-creeping, the leaves are narrow and long, the tillering ability is general, and the panicle rate is medium. The cold resistance is better in winter. Early jointing in spring, fast polarization, and general ability to resist spring cold. The plant height is 74 cm, the plant type is loose, and the flag leaves are rolled up. The elasticity of the stem is medium and the lodging resistance is medium. The drought tolerance is general, the filling is fast, and the ripening phase is general. The spike layer is neat, the spike is larger, the spikelet arrangement is sparse, and the seed setting is good. Ear spindle type, long awn, white shell, white grain, grain half-horny, plumpness is good. The number of ears per mu is 402000 ears, the number of grains per ear is 37.3, and the 1000-grain weight is 42.6g. Resistance identification: highly susceptible stripe rust, powdery mildew, scab, sheath blight, moderately susceptible leaf rust. The results of quality determination in 2010 and 2011 were as follows: grain bulk density 794 g / L, 790 g / L, hardness index 68.6 (2011), protein content 13.21%, 12.71%. Flour wet gluten content 28.9%, 27.3%, sedimentation value 30.0ml, 27.2ml, water absorption 60.1%, 58.2%, stability time 4.1min, 5.2min, maximum resistance 256E.U, 240E.U, extensibility 130mm, 123mm, stretch area 47 square centimeters, 43 square centimeters.

Second, yield performance

In the regional trial of Dongshui group varieties in the south of Huang-Huai winter wheat region from 2009 to 2010, the average yield per mu was 550.5 kg, which was 9.9% higher than that of Zhoumai 18. In the 2010-2011 trial, the average yield per mu was 589.6 kg, 5.4% higher than that of the control Zhoumai 18. In the production test from 2010 to 2011, the average yield per mu was 559.8 kg, which was 5.4% higher than that of the control Zhoumai 18.

The wheat is suitable to be planted in Henan Province (except Nanyang and Xinyang) in the south of Huang-Huai winter wheat region, and in the early and middle crops of high school water and fertilizer plots in northern Anhui Province, northern Jiangsu Province and Guanzhong area of Shaanxi Province.