Preliminary Analysis of Agronomic Traits on M1 Flax Induced by Physical and Chemical Agents
In order to provide high quality germplasm resources for germplasm innovation and the improvement of variety genetic for flax ,through 60 Co-γ ray(200 Gy ,350 Gy and 500 Gy)and Ethyl Methan Sulfonate(0 .2%EMS for 30 h and 0 .3% EMS for 24 h) ,the seeds of flax(Linum usitatissimum L .)from variety Heiya19 were treated ,and the agronomic traits in M1 were observed and analyzed in the field .The results showed that the mutants with mutative traits including the mutation of leaf color ,leaf shape ,plant height ,number of branches , diameter of main stalk ,color of flower ,petal shape and sterility were found in M 1 progenies which laid a good foundation for constructing flax mutant library .It was also found that the effects of seedling rate and seed pro-duction in M1 flax were different induced by physical and chemical agents .The 60 Co-γ ray with high doses caused low seedling rate but low production ,while the EMS with high concentration caused high seedling rate , but most were sterile plants which lead lower seed production .
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