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一、子粒形态鉴定法从净度检验后的好种子中,随机数取试样2～4份,每份250粒,并参照其标准样品及其亲本自交系的原种种子,依据下列特征逐粒进行鉴定分析: 1.粒色。不同品种的种子具有不同的子粒颜色,并且其粒色的分布也不尽相同。有些品种种子的子粒顶部呈白色或黄白色,而有些则无色或不明显。 2.粒形。不同品种的种子具有不同的粒形。一般可分为:近球形、多棱形、短楔形、长楔形等。 3.种胚的形状及其凹陷程度。 4.种子顶部凹槽的有无及其凹陷程度。 5.种粒上花丝脱落痕迹的位置及其明显程
First, the morphological identification method of seed From the good seed after the clarity test, the random number to take the sample 2 to 4, each 250, and with reference to its standard sample and its parent inbred lines of the original seed, according to the following characteristics By grain identification analysis: 1. Grain color. Different varieties of seeds have different seed color, and the color distribution is not the same. Some varieties of seeds have white or yellow tops, while others are colorless or inconspicuous. 2. Grain shape. Different varieties of seeds have different grain shape. Generally can be divided into: nearly spherical, polygonal, short wedge, long wedge and so on. 3. Embryo shape and the degree of depression. 4. seed the top of the groove with or without depression. 5 species of filament shedding traces of the location and the obvious process