CAJ | 학술논문

在供水量适宜的条件下，烟株发育正常，其团棵期Mg积累量约占一生的55.3%，旺长期占38.9%，成熟期为5.8%。供水过多、过少处理，前、中期Mg积累量相对偏少，引起成熟期Mg积累量不足。　　Mg在烟株各器官的分配，团棵期的叶片>根系＞茎；旺长期以后烟叶＞茎＞根系。各生育时期都是叶肉＞叶脉。烟叶分配百分率，各个时期都是供水适宜的多于供水过多或过少处理。在供水过多、过少情况下，加大根、茎部分Mg分配比例，减少烟叶分配比例。
재공수량괄의적조건하，연주발육정상，기단과기Mg적루량약점일생적55.3%，왕장기점38.9%，성숙기위5.8%。공수과다、과소처리，전、중기Mg적루량상대편소，인기성숙기Mg적루량불족。　　Mg재연주각기관적분배，단과기적협편>근계＞경；왕장기이후연협＞경＞근계。각생육시기도시협육＞협맥。연협분배백분솔，각개시기도시공수괄의적다우공수과다혹과소처리。재공수과다、과소정황하，가대근、경부분Mg분배비례，감소연협분배비례。
Flue-cured tobacco plant grows and develops natura1ly in the condition of supplying moderate amount water. Meanwhile, magnesium accumulation makes up 55.3% in the prophase, 38.9% in period of vigorous growth and 5.8% in period of mature. Supplying water excessively or deficiently, less magnesium accumulation in earlier and intermediate stage may exert pressure on absorption in anaphase and result in deficient magnesium accumu1ation in period of mature. 　　In the different parts of tobacco plant, Magnesium distribution percentage is as follows: leaf>root>stalk in the prophase; leaf>stalk>root after vigorous growth and >vein in every stage. 　　Magnesium distribution percentage in leaf in every stage of treatments with supp1ying moderate water is more than that with supplying water excessively or insufficiently. In excessive or deficient water supply condition, magnesium distribution percentage in root and stalk increases, whereas decreases in leaf.