Research on Breeding Traits of Turf Bamboo by ^(137)Cs γ-radiation  

作　　者：BAI Ruihua1 DING Xingcui1 DU Xuhua1 ZHOU Yan1 ZHENG Youmiao1 CAI Hanjiang1 ZHANG Chunxia2 GU Lijian 3 1. China National Bamboo Research Center, Hangzhou 310012, P.R.China 2. Nanjing Forestry University, Nanjing 210037, P.R.China 3. Hangzhou Lin’an Taihuyuan Bamboo Garden, Lin’an 310030, P.R.China 

出　　处：《Chinese Forestry Science and Technology》2010年第4期53-58,共6页中国林业科技（英文版）

基　　金：Funded by National Public-benefit Research Institute Fund (CAFINT2008C12);R & D Capacity Development Project of Zhejiang Science & Technology Department (2008E10G5390002)

摘　　要：For the purpose of breeding new and fine varieties of turf bamboo, 5 turf bamboo species (Sasa pygmaea, Indocalamus decorus, I. latifolius, Shibataea chinensis, and S. fortune) were radiated through 137Cs γ-ray in tissue cultures at different radiation dose. It was shown that: 1) Four species of turf bamboo were sensitive to radiation, low dose radiation had no effect on bud germination, high dose radiation delayed bud germination; 2) Radiation at 5 and 10 Gy had not impact on shoot emergence, but radiation at 20 Gy made only S. pygmaea shoot emergence; 3) Radiation lethal dose of S. pygmaea in tissue culture ranged from 20 to 30 Gy, but less than 20 Gy for S. fortunei. The radiation lethal dose of bamboo rhizome of I. latifolius was 10 to 20 Gy, and over 20 Gy for I. decorus, I. latifolius and S. chinensis; 4) Golden yellow strips occurred in S. chinensis leave after radiation at 5 and 10 Gy. Therefore, it's possible to breed new fine ornamental bamboo varieties by radiation.For the purpose of breeding new and fine varieties of turf bamboo, 5 turf bamboo species (Sasa pygmaea, Indocalamus decorus, I. latifolius, Shibataea chinensis, and S. fortune) were radiated through 137Cs γ-ray in tissue cultures at different radiation dose. It was shown that: 1) Four species of turf bamboo were sensitive to radiation, low dose radiation had no effect on bud germination, high dose radiation delayed bud germination; 2) Radiation at 5 and 10 Gy had not impact on shoot emergence, but radiation at 20 Gy made only S. pygmaea shoot emergence; 3) Radiation lethal dose of S. pygmaea in tissue culture ranged from 20 to 30 Gy, but less than 20 Gy for S. fortunei. The radiation lethal dose of bamboo rhizome of I. latifolius was 10 to 20 Gy, and over 20 Gy for I. decorus, I. latifolius and S. chinensis; 4) Golden yellow strips occurred in S. chinensis leave after radiation at 5 and 10 Gy. Therefore, it's possible to breed new fine ornamental bamboo varieties by radiation.

关 键 词：BAMBOO 137Cs g- radiation BREEDING lethal dose 

分 类 号：S79[农业科学—林木遗传育种]