摘要
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。
A study of two varieties of flue—cured tobacco at temperature 24±2℃ in the glassroom showed that, in the longer growth period of seedlings both of the morphological growth pattern of root length, stem length, stem diameter and leaf area and dry matter accumulation patterns of root, stem, leaves and plant had accorded with the Logistic equation. The morphological growth rate and dry matter accumulation rate of organs showed a single-peak cureve in the seedling growth period. The starting date of rapid growth and the date of maximum growth rate for organic morphology were earler than that for dry matter accumulation. The purpose is to produce healthy vigorous seedlings that the proper stage of heeling in was exponential period or before period of most rapid growth date.
关键词
烟草
生长
tobacco
seedling
growth pattcrn
