渭北旱地小麦新品种稳产性分析

陕西省渭南市是粮食生产大市，小麦种植面积和产量分别占全省30.1%和34.8%,其中旱地小麦面积占到小麦总面积的1/3左右，产量占到1/4左右。旱地小麦丰欠直接关系全市夏粮丰产丰收。我们从省内外引进了旱地小麦新品种12个，采取多年多点试验的方法，以期筛选出适宜当地农业生产的优良旱地小麦品种。渭麦9号和晋麦47变异系数在不同年份均相当，表明渭麦9号和晋麦47是适合旱薄地种植的稳产品种。普冰9946在丰水年份的产量较高，丰产稳产性良好，适宜在丰水年份种植。

Analysis of Stable Yield in New Wheat Varieties for Weibei Dryland

Weinan city plays a significant role in agricultural production, with wheat cultivation encompassing 30.1% of the total planting area and contributing 34.8% to the region''s overall yield. Dryland wheat cultivation constitutes approximately one-third of the total wheat acreage, accounting for about one-fourth of the harvest. Dryland wheat has direct effect on summer grain yield and harvest in the region. Selecting superior varieties suitable for local agricultural production is of utmost importance.We conducted a comprehensive study in which 12 new varieties of dryland wheat from Shaanxi and other provinces in China were introduced. We applied the method of multi-point testing to assess the performance of these varieties for screening out the varieties suitable to the local area. The coefficients of variation of Weimai 9 and Jinmai 47 are similar in different years, indicating that Weimai 9 and Jinmai 47 are stable varieties suitable for dry and thin land cultivation. On the other hand, Pubing 9946 exhibits high yields during wet years, demonstrating excellent stability in its performance.Thus, it proves to be an ideal choice for cultivation in regions, which is suitable for planting in wet years.