钼营养对烤烟干物质积累、钼素分配和利用率的影响  

Effects of Molybdenum on the Accumulation of Dry Matter,Distribution and Utilization of Molybdenum of Flue-cured Tobacco

作　　者：武丽[1] 张西仲 李余湘 韩忠明 吴邦元 陆新莉 李章海[3] 

机构地区：[1]安徽农业大学农学院,安徽合肥230036 [2]贵州省黔南州烟草公司,贵州都匀558000 [3]中国科技大学烟草与健康研究中心,安徽合肥230051

出　　处：《江西农业大学学报》2012年第3期445-450,469,共7页Acta Agriculturae Universitatis Jiangxiensis

基　　金：贵州省烟草专卖局重点科技项目(合同号200914);院科研启动基金项目(2011002)

摘　　要：研究不同剂量的钼营养对烟株干物质积累的影响、钼素在不同器官中的分配及钼素利用率等。盆栽试验采用4个钼剂量水平和CK(清水)共5个处理,并在黔南烟草主产区的9个地方布置统一方案进行大田试验。分别在不同生育阶段使用KCNS比色方法测定钼含量,并使用SPSS进行数据分析。结果表明:①随生育期的延长,干物质积累量也在增加,且钼含量有不同的变化规律。②不同施钼水平烟株的各器官中的铝分配都以叶中最多,施钼处理的烟叶中钼素含量均高于CK。③随供钼水平的变化,各处理被烟株吸收的钼素有效率有所差异增加,烟株中钼素积累量有所提高。钼素促进了烟株各器官干物质的积累,提高了烟株中的钼素积累量,而且适当剂量的钼营养影响着烟株不同器官中的钼素分配率,一定程度上提高了烟叶中的钼含量及分配比率。The effects of molybdenum nutrition of different dosages on the accumulation of dry matter, distribution and utilization of molybdenum in different organs of flue-cured tobacco were studied by Pot and field experiments.The pot experiment used 4 Mo dose levels and CK（water）,and the field experiment was carried out in the main producing area in Qiannan,in which 9 plotes were used for the the experiment with a was layed out unified scheme.The molybdenum contents in different reproductive stages were determined with KCNS colorimetric method and analysed with SPSS.①With the prolongation of growing period,the dry matter accumulation increased,and there were different changing rules in molybdenum contents.②All the tobacco plants applied with different levels of molybdenum had the highest Mo content in leaves,and was higher than that in CK.③With the increase of molybdenum levels,the accumulation of molybdenum increasedAs for molybdenum level changes,Each of the treatment,had difference by tobacco plant uptake of Mo element efficiency.The accumulation of dry matter was promoted and the distribution ratio of molybdenum in tobacco plant was regulated by molybdenum nutrient.To a certain extent,the content of molybdenum and the distribution ratio in the leaves were increased.

关 键 词：钼营养 干物质 积累 分配 利用率 

分 类 号：S572[农业科学—烟草工业]