^(137)Cs γ射线辐照地被竹的生物学效应  

BIOLOGICAL EFFECTS OF TURF BAMBOO BY ^(137)Cs γ-RAYS IRRADIATION

作　　者：白瑞华[1] 丁兴萃[1] 杜旭华[1] 王树东[1] 张春霞[2] 

机构地区：[1]国家林业局竹子研究开发中心,浙江杭州310012 [2]南京林业大学,江苏南京210037

出　　处：《核农学报》2011年第4期622-626,共5页Journal of Nuclear Agricultural Sciences

基　　金：中央级公益性科研院所基金项目(CAFINT2008C12);浙江省科技计划项目(2008E10G5390002)

摘　　要：用137Cs γ射线辐射6种地被竹的竹鞭或组培苗,进行辐射生物学效应的初步研究。结果表明:所选低剂量处理对幼芽萌动期没有影响,高剂量处理推迟幼芽萌动期。5、10Gy处理的竹笋破土期没有发生变化,20Gy处理只有翠竹的竹笋破土出苗。翠竹对辐射的耐受性较强,其组培苗致死剂量为20～30GY,对于菲白竹的组培苗,致死剂量不大于20GY;阔叶箬竹竹鞭的致死剂量在10～20Gy之间,其他3种地被竹的致死剂量均超过80Gy。翠竹、阔叶箬竹、美丽箬竹等辐射后形态没有明显变化,鹅毛竹在5、10Gy的剂量处理下叶片出现了花条纹。137Cs γ-rays was used to treat bamboo rhizome or culture of turf bamboo,and to evaluate the biological was studied.It showed that low dose of irradiation had no effect on bud germination,high dose of irradiation delayed the bud germination.Sasa pygmaea was more resistant to γ-rays irradiation,and the lethal dose of Sasa culture was 20～30Gy.For Sasa fortunei culture the lethal dose was less than 20Gy;and the lethal dose of bamboo rhizome for Indocalamus latifolius was 10～20Gy,for other 3 species of bamboo,the lethal dose was more than 80Gy.The morphological feature of Sasa pygmaea,or Indocalamus latifolius,or Indocalamus decorus after irradiation was not obvious,but the white strip in its green leaves of Shibataea chinensis irradiated with 5 and 10Gy was observed.

关 键 词：地被竹 137Cs辐照 萌动期 致死剂量 

分 类 号：S795[农业科学—林木遗传育种]