CAJ | 학술논문

采用液培试验，研究了不同硫浓度下烤烟根、茎、叶对钙的吸收与积累规律。结果表明，硫浓度在0～8 mmol/L试验范围内，烤烟根、茎和叶片中钙含量随硫浓度增加呈显著或极显著降低。硫浓度在2～8 mmol/L范围内，烤烟根、茎、叶片对钙吸收速率和积累量随硫浓度增加而大幅度降低。0 mmol/L处理烤烟根系对钙吸收速率低于2 mmol/L处理，但在团棵和旺长期，0 mmol/L处理烤烟叶片对钙吸收速率高于2 mmol/L处理的，在旺长后期和成熟期，0 mmol/L烤烟茎对钙吸收速率高于2 mmol/L处理的。0 mmol/L处理烤烟根系钙积累量低于2 mmol/L处理的，但其叶片和茎对钙积累量与2 mmol/L处理差异不大。由此可见，在液培条件下，无硫或低硫促进了烤烟根、茎、叶对钙的吸收和积累。
채용액배시험，연구료불동류농도하고연근、경、협대개적흡수여적루규률。결과표명，류농도재0～8 mmol/L시험범위내，고연근、경화협편중개함량수류농도증가정현저혹겁현저강저。류농도재2～8 mmol/L범위내，고연근、경、협편대개흡수속솔화적루량수류농도증가이대폭도강저。0 mmol/L처리고연근계대개흡수속솔저우2 mmol/L처리，단재단과화왕장기，0 mmol/L처리고연협편대개흡수속솔고우2 mmol/L처리적，재왕장후기화성숙기，0 mmol/L고연경대개흡수속솔고우2 mmol/L처리적。0 mmol/L처리고연근계개적루량저우2 mmol/L처리적，단기협편화경대개적루량여2 mmol/L처리차이불대。유차가견，재액배조건하，무류혹저류촉진료고연근、경、협대개적흡수화적루。
A hydroponics experiment was carried out to investigate calcium content, accumulation and uptake in root, stem and leaf in flue-cured tobacco under different sulfur concentrations. Results showed that calcium contents in root, stem and leaf were reduced significantly or highly significantly along with increase of sulfur concentration from 0 mmol/L to 8 mmol/L. The uptake rate and accumulation of calcium in root, stem and leaf were reduced along with increase of sulfur concentration from 2 mmol/L to 8 mmol/L. Calcium uptake rate in root under 0 mmol/L sulfur concentration was lower than that under 2 mmol/L. Calcium uptake rate in leaf under 0 mmol/L sulfur concentration was higher than that under 2 mmol/L from rosette to fast growing stage, while calcium uptake rate in stem nder 0 mmol/L sulfur concentration was higher than that under 2 mmol/L from fast growing to maturation stage. Calcium accumulation in root under 0 mmol/L sulfur concentration was lower than that under 2 mmol/L, but no significant difference under 0 mmol/L and 2 mmol/L sulfur concentration in stem and leaf. No or lower sulfur concentration promoted calcium uptake and accumulation in root, stem and leaf.