缺素对烤烟叶片腺毛生长发育影响的研究

Effects of element deficiency on tentacle growth in flue-cured tobacco

通过水培试验对烤烟K326品种苗期生长过程中叶片各类腺毛密度变化进行了跟踪研究。同时还分别研究了B、Fe、Ca、Mo4种营养元素缺乏条件下生长的叶片各类腺毛密度变化情况。结果表明:缺B、Fe、Ca时烟叶的各类表面腺毛均会发生显著变化,营养元素缺乏会加速叶片表面腺毛和腺头萎缩、衰老和脱落速率。其中上表皮各类腺毛脱落的速率要明显大于下表皮。

Density changes of various tentacles on the seedlings of flue-cured tobacco variety K326 were investigated under the situation of B, Fe, Ca, and Mo deficiency in cultivation, respectively. Results indicated that the deficiency of B, Fe, and Ca could produce notably changes of tentacle density and accelerate the shrinking, the leaves. The desquamate rate of tentacle on the upper epidermis was greater apoptosis, and desquamate rate of tentacles on than that on the nether epidermis.