施钼对烟草叶绿素含量、光合速率、产量及品质的影响

摘要

在大田条件下,对K326、云烟85、CB-1、红花大金元4个烟草品种进行叶面喷施钼肥,研究施钼对烟草叶片叶绿素含量、光合速率、产量和品质的影响.结果表明,施钼能提高4个品种烟草生育前期叶片叶绿素的含量和光合速率,提高烤后烟叶中上等烟的比例,显著降低杂色烟的比例,增加烟叶产量和产值,提高烟叶含钾量和含钼量.%A field experiment was conducted to investigate the effects of foliar application of molybdenum (Mo) on chlorophyll content, photosynthetic rate, yield and quality of tobacco leaves for four tobacco varieties (K326, Yunyan85, CB-1 and Hongda). The results showed that Mo application could increase leaf photosynthetic rate and chlorophyll content of the four tobacco varieties during early growth stage. Mo application could significantly enhance the percentage of fine and middle grade flue-cured tobacco leaves and decrease the percentage of variegated tobacco, increase yield and output value of tobacco, increase the content of potassium and Mo content of tobacco leaves.