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品种纯度是种子定级的主要依据。据有关部门研究报道,杂交玉米种子纯度每下降1%,667m~2减产9kg 左右。因此,搞好种子纯度鉴定可以充分发挥良种的增产潜力。1 电泳法鉴定玉米种子纯度的必要性目前国标规定的鉴定玉米种子纯度的方法有:籽粒形态鉴定法、幼苗形态鉴定法和田间小区种植鉴定。籽粒形态鉴定法和幼苗形态鉴定法因可供鉴别的性状较少,可比性
Variety purity is the main basis for seed grading. According to the research reports of relevant departments, the purity of hybrid maize seeds is reduced by 1%, and the yield of 667m ~ 2 is reduced by about 9kg. Therefore, to do a good job of seed purity identification can give full play to the yield potential of improved varieties. 1 electrophoresis identification of the need for the purity of maize seeds At present, the method of identifying the purity of maize seeds specified by the national standard are: seed morphology identification method, seedling morphology identification and field plot identification. Identification of seed morphology and seedling morphological identification of the law for less traits, comparability