叶片衰老过程中的光子计数统计实验研究  

Experimental Investigation of Photon Count Statistics During Leaves Senescence

作　　者：李光[1] 赵占娟[1] 焦小雪[1] 刘品[1] 

机构地区：[1]河北大学物理科学与技术学院,河北保定071002

出　　处：《河北大学学报（自然科学版）》2008年第4期360-364,共5页Journal of Hebei University(Natural Science Edition)

基　　金：河北大学博士基金资助项目(2002y01);河北省自然科学基金基地专项(08B009)

摘　　要：采用生物超微弱发光探测技术对植物叶片衰老过程中的超微弱发光进行测量,并用量子光学中的光子计数分布统计叶片衰老过程中的规律.结果表明:植物叶片幼叶及衰老黄化老叶的光子计数分布与泊松分布基本吻合,而成熟期叶片的光子计数则与泊松分布偏离很多.分析认为,可能是由于叶片的不同生长时期,发光来源不同造成的.Using the detect technology of the ultraweak photon emission, ultraweak photon emission is measured and the regularity of photon-counting statistic is analyzed during leaves senescence. This result shows that the young and the old leaves＇ photon-counting distribution approach approximately Poisson distribution. Mature leaves＇ photon-counting distribution deviate Poisson distribution far away. The reason maybe exist different photon-emission source during leaves growing.

关 键 词：超微弱光子辐射 光子计数统计 泊松分布 衰老 

分 类 号：Q947.8[生物学—植物学]