工厂大气混合污染对含笑(Michelia figo(Lour)Spreng)叶片、花的影响

工厂大气混合污染对含笑(Michelia figo(Lour)Spreng)叶片、花的影响如下:1)部分老叶片尖端黄化枯萎,其保护组织、同化组织明显解体;幼叶片较老叶片抗性更强,其组织无伤害症状。2)部分花的苞片黄化,其表皮及内部组织坏死;外轮花被尖端缘处细胞萎缩,内轮花被、雌雄蕊几乎无影响。3)开花正常。

THE EFFECT OF MIXED AIR POLLUTION FROM FACTORIES ON LEAVES AND FLOWERS OF MICHELIA FIGO(LOUR. ) SPRENG

The effects of factory mixed air pollution on leaves and flowers of Michelia figo are as follows: 1) Tips of some old leaves becom yellow and their Protective tissue and assimilating tissue disntegrated evidently. The youg leaves are more resietant to factory mixed air pollution than old leaves and their tissur arw harmless. 2) Bracts of some flowers become yollow, there are mang necrotic cells in their epidermis and inside tissue, The marginal cells of outside perianth tipd are diminshed, While the inside perianth and stuamina and gynaecia are harmless. 3) They bloom normally.