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The Effect of DNA Demethylation on Vernalization in Broccoli(Brassica oleracea L.var.italica Plenck) |
Yu Xihong,Li Dan,Jiang Xinmei |
(College of Horticulture,Northeast Agricultural University,Harbin 150030) |
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Abstract Abstract Taking two varieties of broccoli‘Qingfeng 103’and‘Luxiu’as materials,we adopted different 5azaC treatments on them at young seedling stage,tested the influence of DNA demethylation on vernalization and C/N during vernalization in broccoli.The results showed that the 5-azaC spraying treatment could promote vernalization and shorten flower-bud differentiation stage,and its ratio of total sugar to total nitrogen,soluble sugar to soluble protein,sucrose to soluble protein were higher than the root fertilizing treatment,CK-W and CK-T.
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Received: 29 February 2008
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