不同基因型烤烟体内钾积累分配差异比较研究

Accumulation and distribution of potassium in different genotypes of flue-cured tobacco

针对我国烟叶含钾量普遍偏低的现状,进行钾效率不同基因型烤烟不同生育期烟株体内钾积累分配差异比较研究。结果表明:烟株吸钾能力和烟叶含钾量在基因型间存在明显差异,钾在烟株体内的积累分配与烟草基因型有关,利用钾高效基因型品种进一步提高我国烟叶含钾量是一条有效途径。

For the generally low content of potassium in flue-cured tobacco, a comparative study was conducted with different genotypes of flue-cured tobacco for the differences in distribution and accumulation of potassium efficiency at different growth stages. The results showed that the significant differences existed in the absorption capacity of potassium of tobacco plant and the potassium content of tobacco leaf in different genotypes of flue-cured tobacco. The accumulation and distribution of potassium in the bodies of the tobacco plant were related to genotypes. The application of high efficiency potassium variety should be an effective way to further enhance the potassium content of tobacco leaves.