Comparative ploidy response of different varieties of Impatiens balsamina L.

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概要

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• Polyploidy has been induced in four varieties of Impatiens balsamina L. The most effective treatment for induction of polyploidy was found to be 0.2% aquous colchicine for 12 hours. The induced tetraploids were characterised by increase in height, size of flowers and late and longer blooming period. Despite good pollen fertility, polyploids have poor seed setting. Reasons for low frequency of multivalents in all the varieties have been discussed. Significant increase in chiasma frequency (C2) of 4n of three varieties have been reported. For most of the parameters distinct differences at varietal level in tetraploid were noted which appears to have genotypic base.

• 財団法人 日本メンデル協会の論文

財団法人 日本メンデル協会 | 論文

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