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12种不同基因型烤烟种子的千粒重、十粒长宽比和萌发特性如发芽势、发芽率、发芽指数、活力指数,以及生长特性如均株真叶数、叶面积、鲜重、干重,都各有其可测定的相对具体的量,并且由于遗传性原因使品种间各指标存在显著性差异,但外观属性、萌发特性、生长特性相互之间并不存在显著性和相关性。试验发现烟种子中没有烟碱,萌发幼根中有烟碱,但五叶期苗叶中没有烟碱。
Thousand grain weight, ten grain aspect ratio and germination characteristics of 12 different genotypes of flue-cured tobacco seeds such as germination potential, germination rate, germination index, vigor index, and growth characteristics such as leaf number, leaf area, fresh weight, dry weight, All have their specific and measurable amount, and there are significant differences among the indexes of different cultivars due to genetic reasons. However, the appearance, germination and growth characteristics are not significantly and correlated with each other. No nicotine was found in the seeds of tobacco and nicotine was found in young rootlets, but there was no nicotine in the leaves of five-leaf stage.