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在较长生育期内。烟苗根长、茎高、茎粗与叶面积等形态生长模型。以及根、茎、叶与全株的干物质积累模型都符合Logistic方程。苗床期各器官形态生长速率与干物质积累速率皆呈单峰曲线。各器官形态快速生长期早于干物质积累快速生长期。生产上应于烟苗指数生长期,即快速生长高峰期到来之前进行假植。
In the longer period of growth. Tobacco root length, stem height, stem diameter and leaf area and other morphological growth models. And the dry matter accumulation models of roots, stems, leaves and whole plants all accorded with Logistic equation. Morphological growth rate and dry matter accumulation rate of all organs at seedling stage showed single peak curve. The rapid morphogenesis of various organs preceded the rapid growth of dry matter accumulation. Production should be in the tobacco seedling index growth period, that is, before the rapid growth peak for planting.