Comparative Study on New Alfalfa Strains Induced by Space Mutation
For the deficiency of productive alfalfa varieties which can adapt to the cold regions,some original materi-als were loaded in Shijian 8 breeding satellite and transported into space to select and breed a new high-yield and cold-resistant alfalfa variety in 2006.Two new strains were bred based space mutation breeding.Ecological adapt-ability,growth period,fresh and dry forage yield,leaf/stem,plant height of all the strains(varieties).Seed yield and nutrition composition were measured by the strains(varieties)comparison experiment from 2017 to 2020.The result showed that Synthetical Strain 1 is cold resistant and high yield,with an average annual hay yield of 17,038 kg/ha and seed yield of 312 kg/ha,which is in line with breeding objectives.
Space mutationAlfalfaStrains(varieties)comparison experimentYieldNutrition composition
NETL
NSTL
万方数据
