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选 用张单251 等6 个 玉米杂交 种,在张 掖沿 山( 海拔1 700 ~2 100 m ) 冷凉 灌区 进 行两年9 点次试 验,并用 各点( 年) 产量 的差 异 显著 性测 定 度量 品 种的 丰产 性, 用标 准差 、变 异 系数 、适定性参 数、高稳 系数及回 归系数 等综合评 价品种 的稳产性 和适应性 。结果表 明,张单251 高产稳产性好, 酒单2 号适应 范围广, 可作为沿 山冷凉灌 区海 拔1 900 m 以下( 张单 251) 及2 100 m 以下( 酒单2 号) 区 域的主栽 品种,张 单1103 亦 具有较 高的增产 潜力,可 在适宜区 域搭配 种植。
Six maize hybrids, such as Zhangdan 251, were selected and tested in the cold-water irrigation area along Zhangye (1,7 700 ~ 2,100 m) for two years at 9 o’clock. The difference of yield at each point (year) High yield, using standard deviation, coefficient of variation, fitness parameters, high stability coefficient and regression coefficient comprehensive evaluation of the stability and adaptability of varieties. The results showed that Zhangdan 251 had high and stable yield and good adaptability to wine list No.2, which could be used as the main area under the elevation of 1 900 m (Zhangdan 251) and below 2 100 m Planting varieties, Zhang Dan 1103 also has a higher yield potential, with the appropriate area with planting.