高代品系鉴定试验是小麦育种中重要环节之一。它不仅要研究稀植与密植两种条件下各性状对应变化规律,而且需对参试品系的适应性、抗病性、秆强度和丰产性等进行全面鉴定,从中选出优良品系参加全省区域试验。小麦高代品系鉴定试验既是育种者向生产上推荐良种的“窗口”,又是新品系从稀植选种条件向密植生产条件过渡的“桥梁”。该 Identification of high strains of the test is one of the important aspects of wheat breeding. It not only needs to study the variation law of each trait under the conditions of thin planting and close planting, but also need to fully appraise the adaptability, disease resistance, stalk strength and high yield of the tested lines, and select excellent lines to participate in the province Regional test. The test of wheat high-yield lines is not only a “window” for breeders to recommend the production, but also a “bridge” for the new lines to transition from the thin-planting selection to the close-planting production. This