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胺磺灵诱导小麦根尖染色体结构的变异

DOI: 10.7668/hbnxb.2008.02.018, PP. 80-83

Keywords: 小麦,根尖,胺磺灵,染色体变异

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Abstract:

用不同浓度的胺磺灵(Oryzalin)处理小麦种子,观察小麦根尖细胞染色体结构的变异情况。结果表明,胺磺灵的不同处理浓度及处理时间均能引起染色体的异常分裂,在光学显微镜下检测到桥、多极染色体、环状染色体、滞后染色体、染色体加倍、染色体凝集、微核等异常现象,以染色体加倍、微核的发生频率最高;处理时间对染色体结构变异的影响明显高于处理浓度。

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