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草业科学  2014 

3种诱变因子对箭筈豌豆种子萌发的影响

DOI: 10.11829\j.issn.1001-0629.2013-0151, PP. 438-445

Keywords: 箭筈豌豆,60Co-γ射线,秋水仙素,甲基磺酸乙酯(EMS),萌发

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Abstract:

?研究了经不同剂量60Co-γ射线、秋水仙素及甲基磺酸乙酯(EMS)诱变处理后,箭筈豌豆(Viciasativa)种子的萌发率、萌发指数及幼苗生长情况。结果表明,60Co-γ射线对箭筈豌豆种子萌发率无显著影响,对种子胚根和胚芽长有一定程度的抑制作用,最佳辐射剂量为600Gy。不同剂量秋水仙素对箭筈豌豆种子的萌发率、胚根和胚芽长均产生明显的抑制作用,短时间处理对种子萌发和幼苗生长的抑制作用较小,经0.20%浓度处理24h的种子,其萌发率和萌发指数分别为45%和0.757。经EMS处理后的种子萌发率和幼苗生长随处理时间和处理浓度的变化而变化,其中0.5mL·L-1浓度处理48h终萌发率为46%,可推荐为EMS处理的最佳剂量。

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