Effect of 60Coγ-ray Irradiation on Germination Rate of Seed and Seedling Growth of Osmanthus fragrans(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Title:: Effect of 60Coγ-ray Irradiation on Germination Rate of Seed and Seedling Growth of Osmanthus fragrans

Author(s):: LIAO Meilan1; ZHOU Xiuren2; WANG Huaxin1; DU Ling1; (1.Guangxi Forestry Research Institute，Nanning，Guangxi 530002；2.College of Life Sciences，Henan Institute of Science and Technology，Xinxiang，Henan 453002)

Abstract:: Taking Osmanthus fragrans ‘Ziyingui’ as material，the seeds of Osmanthus fragrans were irradiated at different doses of 60Coγ-ray，and the effects of radiation on the germination rate and seedling growth were observed.The results showed that the radiation could inhibit the seed germination of Osmanthus fragrans,the higher the dose,the lower the germination rate.Radiation at low doses and short time promoted the number and length of lateral root growth of seedling；based on comprehensive consideration of the effects of radiation on the biological characteristics of the seedling stage，such as the germination rate，seedling height and ground diameter of Osmanthus fragrans.Preliminary conclusion was that the effect of the irradiation dosage of 100 Gy，rate of 5 Gy?min-1 and duration of 20 minutes on the seed was small，however，the effect of the irradiation dosage of 300 Gy，rate of 1 Gy?min-1 and duration of 300 minutes on the seeds of Osmanthus fragrans was relatively large.

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Last Update: 2016-07-14