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沉淀 值是评 价小麦品 质的主要 指标之 一。影响 小麦籽粒 沉淀值 含量的客 观因素主 要有品种、地 理环境 、土壤肥力 、栽培管 理等。杂 种后代沉 淀值的 平均值 在低 值亲 本附 近徘 徊,回 交以 1~2 次为宜 。定向选 择有利于 沉淀值 的提高和 农艺性状 的协调 。
Sedimentation value is one of the main indicators to evaluate the quality of wheat. The objective factors influencing the grain sedimentation value of wheat mainly include variety, geographical environment, soil fertility, cultivation and management. The average value of hybrid progeny precipitation hovering around the low value of the parent, back to 1 or 2 times is appropriate. Directional selection is conducive to the improvement of sedimentation value and the coordination of agronomic traits.