How is the Shimai 12 wheat variety?

Shimai 12 is a short-stalked, lodging-resistant, high-yielding and stable-yielding @#@245@#@ variety bred by the Shijiazhuang Academy of Agricultural and Forestry Sciences in Hebei Province. After passing the Hebei Province approval in 2004 (approval number: Ji Shen Mai 2004004), it was listed as a preferred variety for 2005 by the "National Grain High-Yield Science and Technology Project" for its advantages of high yield, water saving and disease resistance. In 2006 it was introduced into our province (Yu Yin Zi 2006001).

Its yield structure is reasonable, and it is high-yielding and stable-yielding. This variety has a high spike-forming rate, its number of spikes per mu easily reaches 500,000, the number of grains per spike is about 34, and the 1000-grain weight is about 44 grams, so the three components of yield are coordinated and reasonable. From 2003 to 2004 it took part in national and Hebei Province regional trials, covering 42 sites in 5 provinces, with an average yield per mu of 525 kg and a maximum yield per mu of 670.91 kg; in large-scale production demonstrations from 2003 to 2004, the yield per mu was above 500 kg in all cases. In 2005, as a preferred variety of the "National Grain High-Yield Science and Technology Project", it was trial-planted at multiple sites in central and southern Hebei, showing characteristics of lodging resistance, disease resistance and numerous spikes.

Strong lodging resistance, suitable for planting on medium- to high-fertility plots. This variety has a compact plant type, upright flag leaves, short and neat leaves, a well-developed root system, and tough, elastic stems. After many years of plot trials and large-scale demonstrations, no lodging occurred when it was planted on medium- to high-fertility plots.

Strong disease resistance, conducive to stable yield. This variety is highly resistant to stripe rust and leaf blight, moderately resistant to powdery mildew, resistant to dry hot wind, and has good yellowing.

Strong cold resistance. In the 2003 cold resistance identification of the Hebei Province regional trial, the overwintering rate was 99.8%; in the cold resistance identification of the northern section regional trial of the national Huang-Huai wheat region, the overwintering rate was 100%. During large-scale demonstrations and extension from 2001 to 2005, no freezing injury occurred within the suitable sowing period.