硼对烤烟生理生化及产质量的影响

Effect of B^(3+) on physiological and biochemical characteristics, yield and quality of flue cured tobacco

本试验对烤烟的B3+肥效应进行了研究。结果表明 ,施用适量的B3+,可促进烤烟生长发育 ,改善其植物学性状 ,增加色素含量 ,提高光合强度和蒸腾速率 ,使烟叶增产、增质、增收。同时还发现B3+能使烟株提前 2～ 3d现蕾开花 ,中下部烟叶提前落黄采收。这一特性 。

The effect of B 3+ on yield,quality,output value,physiological and biochemical characteristics of tobacco was described in this paper.The results showed that at a certain level application of B 3+ could promote the growth,improve the botanical characteristics,increase the pigment contents and intensity of photosynthesis and transpiration of tobacco,enable high yield,quality and output value of tobacco.The results also showed that B 3+ could bring tobacco into blossom,help the middle and lower leaves getting yellow earlier.