|Table of Contents|

Inducing Effects of 60Co-γ Rays Irradiation on Pepper(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2017年12
Page:
6-10
Research Field:
Publishing date:

Info

Title:
Inducing Effects of 60Co-γ Rays Irradiation on Pepper
Author(s):
WANG Dongmei1SUN Yan1LI Qingzhi2
(1.Laiwu Vocational and Technical College,Laiwu,Shandong 271100;2.Laiwu Research Institute of Agricultural Sciences,Laiwu,Shandong 271100)
Keywords:
:pepperirradiationmutagenic effects
PACS:
-
DOI:
10.11937/bfyy.201712002
Abstract:
Laiwu ‘Dahongpao’ pepper was used as test material,the dormancy seeds and the budding state seeds of pepper were irradiated by 60Co-γ rays at different doses (0 Gy,50 Gy,100 Gy,150 Gy,200 Gy,250 Gy,300 Gy) and emergence rate,seedling height,internode length,leaf type and plant type were investigated and analyzed.The results showed that the irradiation dose correlated significantly with seedling emergence rate and lethality rate.The most appropriate irradiation dose for dormant seed was 100 Gy and for germination seed was 50 Gy.Accompanying irradiation dose increase,the seedling height and node height increased first and decreased afterwards for budding state seed.But they decreased continuously for dormant seed.The seedling height and node height of budding state seeds irradiated by 50 Gy 60Co-γ rays were the same as those of dormant seed irradiated by 100 Gy.Phonotypic effects of irradiated seedling had two forms,plant-type mutant and leaf-type mutant.The lethality rate of dormancy seeds was nearly 1000% when the irradiation dose was 150 Gy.In conclusion,the dormancy seeds were more sensitive to high irradiation dose and the budding state seeds had stronger self-healing ability.All the results would lay a good foundation for the acquisition of pepper stable mutants and new germplasms.

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Last Update: 2017-06-26