大庆石油化工大气污染对几种大豆幼苗的伤害初探

用大庆石油化工（以下称石化）污染大气，对四个品种大豆幼苗进行熏气处理试验的结果可见，叶片浸液的电导率和Ｋ＾＋外渗率都明显增大；叶片叶绿素、可溶性糖、蛋白质和核酸的含量却显著下降；过氧化物酶同工酶的含量的和活性升高。这表明石化大气污染对大豆幼苗具有伤害作用。但是，不同品种的大豆幼苗对其伤害的反应不同，所测试的四个品种大豆中，合丰２５和嫩丰４抗性较强，而黑河５和嫩丰１１则抗性较弱。这为石化大气污染对植

STUDY ON INJURY OF PETROCHEMICAL POLLUTION AIR OF DAQING TO SOYBEAN SEEDLING

Four varietal seedling of soybean were treated with petrochemical pollution air of Daqing. The results showed that both electrolytic leakage and K + leakage of leaves of soybean seedling were increased, and contents of either chlorophyll or soluble sugar or proteins decreased, and content of peroxide isoenzyme increased and its activty intensified in the polluted seedling. This showed that there was injury of petrochemical pollution air to soybean seedling. However, there was variance of the seedling to the injury of the pollution air among four varieties of soybean. The pollution hardinesses of Hefeng 25 and Nengfeng 4 were higher than that of Hefeng 5 and Nenfeng 11 among the four varities of soybeans. This provides the scientific basis for the study on injury of petrochemical pollution air to crops and the choices of pollution resistance varieties of soybeans.