首页|尤加利茎尖组培快繁体系的建立

尤加利茎尖组培快繁体系的建立

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尤加利是当前国内外鲜切花市场上重要的切叶材料,筛选其茎尖生长及生根的最佳培养基,建立其组培快繁体系,可为尤加利组培苗工厂化生产提供参考.以尤加利无菌茎尖为试验材料,分析不同基础培养基、6-BA、NAA组合及其浓度处理下尤加利组培生长和生根情况,并对组培苗进行移栽试验.结果表明:基本培养基是影响尤加利组培苗褐化和增殖的主要因子,NAA是影响尤加利组培苗生根的主要因子;1/4 WPM+6-BA1.3 mg/L+NAA0.1 mg/L组合处理下尤加利茎尖组培褐化率(2.63%)较低,增殖率(115.79%)和生根率(97.37%)均达到最大,移栽后幼苗健壮,叶色浓绿,移栽成活率可达 73.71%.可见,1/4 WPM+6-BA1.3 mg/L+NAA0.1 mg/L+蔗糖 15 g/L+琼脂 6.0 g/L作为最佳培养基,可建立高效的尤加利茎尖组培快繁体系.
Establishment of Tissue Culture and Rapid Propagation System of Eucalyptus cinerea
Eucalyptus cinerea is an important leaf cutting material in the market of fresh cut flowers at home and abroad.Screening the best medium for the growth and rooting of its stem tips and establishing its tissue culture and rapid propagation system can provide a reference for the factory production of its tissue culture seedlings.U-sing the aseptic stem tip of E.cinerea as experimental material,the growth and rooting under different basic medi-um,6-BA,NAA combination and its concentration were analyzed,and the tissue culture seedlings were trans-planted.The results showed that basic medium was the main factor affecting the browning and proliferation of E.cinerea tissue culture seedlings,and NAA was the main factor affecting the rooting.Under the combined treat-ment of 1/4WPM+6-BA 1.3 mg/L+NAA 0.1 mg/L,the browning rate(2.63%)of the stem tips was lower;the proliferation rate(115.79%)and rooting rate(97.37%)were the highest,and the seedlings were robust and the leaf color was dark green,and the survival rate of transplanting was 73.71%.It can be seen that 1/4WPM+6-BA 1.3 mg/L+NAA 0.1 mg/L+Sucrose 15 g/L+Agar 6.0 g/L as the best medium can establish an efficient tissue cul-ture and rapid propagation system of stem tip of Eucalyptus cinerea.

Eucalyptus cinereastem tipstissue culturerapid propagation system

唐庆乐、覃国乐、刘毅、徐圆圆、唐遒冥

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河池乐康生态农业科技有限公司,广西 河池 547000

河池学院,广西 河池 546300

广西壮族自治区林业科学研究院,广西 南宁 530002

广西大学林学院国家林草局中南速生材繁育重点实验室,广西 南宁 530004

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尤加利 茎尖 组织培养 快繁体系

广西壮族自治区林业科技推广项目

桂林科字202228号

2024

绿色科技
花木盆景杂志社

绿色科技

影响因子:0.365
ISSN:1674-9944
年,卷(期):2024.26(3)
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