烤烟硫营养对钙吸收与积累的影响  

Effect of sulfur nutrition on accumulation and uptake of calcium in flue-cured tobacco

作　　者：朱英华[1] 周可金[1] 张国 吴社兰[1] 屠乃美[3,4] 

机构地区：[1]安徽农业大学农学院、合肥市长江西路130号,230036 [2]安徽皖南烟草有限责任公司、宣城市鳌峰中路72号,242000 [3]湖南农业大学农学院、长沙市芙蓉区农大路1号,410128 [4]中国烟草中南农业试验站、长沙市芙蓉区农大路1号,410128

出　　处：《中国烟草学报》2014年第2期59-64,共6页Acta Tabacaria Sinica

基　　金：国家烟草局项目“浓香型特色优质烟叶开发”(TS-01);湖南省烟草局项目“湖南省浓香型特色优质烟开发”(11-14Aa01);安徽农业大学农学院科研启动基金项目(2011004);安徽农业大学科研启动基金(2008001)

摘　　要：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。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.

关 键 词：烤烟 硫 钙 吸收速率 养分积累 

分 类 号：S572[农业科学—烟草工业]