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Induction of anther and identification of cell chromosome ploidy of alfalfa
Author(s): GENG Xiao-li, WEI Zhen-wu, CHENG Peng-wu, LIU Huan
Pages: 1-
5
Year: 2008
Issue:
5
Journal: GRASSLAND AND TURF
Keyword: 苜蓿; 花药培养; 倍性鉴定;
Abstract: 在不同低温预处理时间,不同培养基和不同激素组合下进行了苜蓿花药培养实验.结果表明,花药4℃低温预处理24 h、48 h较72 h诱导效果好.NB培养基对愈伤组织的诱导效果比B5培养基好.最佳愈伤组织诱导培养基组合为NB+2,4-D 0.5 mg/L+NAA0 .3 mg/L+6-BA 0.5 mg/L+KT3.0 mg/L.通过不同蔗糖浓度对愈伤组织的诱导效果比较,表明低浓度的蔗糖有利于降低愈伤组织的褐化率,高浓度的蔗糖有利于单倍体愈伤组织的诱导.分化培养的最佳组合为MS+NAA 0.2 mg/L+6-BA 3.0 mg/L.诱导生根最好的培养基为1/2 MS培养基,最适合蔗糖浓度为10 g/L.
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