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不同培养条件对枸杞组培苗玻璃化的影响 总被引:3,自引:0,他引:3
[目的]探讨不同培养条件对枸杞组培苗玻璃化的影响。[方法]以"宁杞3号"的幼嫩茎段为外植体,以MS为基本培养基,研究6-BA浓度、蔗糖浓度、琼脂浓度、培养温度、光照时间对枸杞组培苗玻璃化现象的影响。[结果]当6-BA浓度为0.2 mg/L、蔗糖浓度为3%、琼脂浓度为6.5 g/L、培养温度25℃、光照时间12 h/d(日光灯,光照强度2000 lx)时,枸杞组培苗繁殖系数最高,玻璃化率较低。[结论]综合调控枸杞组织培养条件,可以减少玻璃化现象的发生。 相似文献
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[目的]该研究旨在建立大果黑果枸杞组培快繁技术体系。[方法]以大果黑果枸杞嫩茎作为外植体,以 MS为基本培养基,研究了不同因素对大果黑果枸杞组培苗初代、继代以及生根培养的影响。[结果]适合大果黑果枸杞初代培养的培养基配方为 MS+ZT 0.2 mg/L+IBA 0.01 mg/L,在此培养基上,腋芽的生长状况良好,萌芽率高达88.73%,且玻璃化的情况很少;同样, ZT对组培苗增殖培养的效果要优于6-BA,适合组培苗增殖培养的培养基配方为MS+ZT 0.15 mg/L+ IBA 0.01 mg/L,在此培养基上,组培苗的生长速度快,其增殖倍数可达5.83倍,组培苗基本没有玻璃化现象,且苗生长健壮;适合组培苗生根的培养基为 MS+IBA1.0 mg/L,生根率可达100%。[结论]适合大果黑果枸杞组培苗炼苗移栽的基质配比为腐殖土∶珍珠岩=1∶1,在此基质中培养的苗木均长势良好,成活率高达92.37%。[结论]该研究为大果黑果枸杞的规模化生产及推广提供理论依据。 相似文献
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《农业科学与技术》2016,(5)
[目的]该研究旨在建立大果黑果枸杞组培快繁技术体系。[方法]以大果黑果枸杞嫩茎作为外植体,以MS为基本培养基,研究了不同因素对大果黑果枸杞组培苗初代、继代以及生根培养的影响。[结果]适合大果黑果枸杞初代培养的培养基配方为MS+ZT 0.2 mg/L+IBA0.01 mg/L,在此培养基上,腋芽的生长状况良好,萌芽率高达88.73%,且玻璃化的情况很少;同样,ZT对组培苗增殖培养的效果要优于6-BA,适合组培苗增殖培养的培养基配方为MS+ZT 0.15 mg/L+IBA 0.01 mg/L,在此培养基上,组培苗的生长速度快,其增殖倍数可达5.83倍,组培苗基本没有玻璃化现象,且苗生长健壮;适合组培苗生根的培养基为MS+IBA1.0 mg/L,生根率可达100%。[结论]适合大果黑果枸杞组培苗炼苗移栽的基质配比为腐殖土∶珍珠岩=1∶1,在此基质中培养的苗木均长势良好,成活率高达92.37%。[结论]该研究为大果黑果枸杞的规模化生产及推广提供理论依据。 相似文献
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枸杞是重要的经济植物及药食兼用的佳品.在我国分布的有宁夏枸杞、枸杞、黑果枸杞、新疆枸杞、截萼枸杞、柱筒枸杞、云南枸杞7种。其中,具有传统药用价值的有3种,分别是黄果枸杞(宁夏枸杞变种)、北方枸杞(枸杞变种)、红枝枸杞(新疆枸杞变种)3个变种。 相似文献
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Effects of Different Culture Conditions on Vitrification of Lycium barbarum L. Plantlets in Tissue Culture 总被引:3,自引:0,他引:3
The tender stems from new Lycium barbarum L. cuhivar "Ningqi 3" released by Ningxia Academy of Agricultural and Forestry Sciences were regarded as explants to investigate the vitrification of Lycium barbarian plantlets in tissue culture under different concentrations of 6-BA, sucrose, ngrose, culture temperature, and illumination duration with MS as basic medium. The results show that the conditions for maximal proliferation coefficient and min-imal vitrification are as following: the basic medium with 0.2 mg/L 6-BA, 3% sucrose and 0.65% agarose; culture at 25 ℃ ; 12 h/d( daylight lamp, 2 000 lx ) illumination. 相似文献
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《(《农业科学与技术》)编辑部》2008,(2)
The tender stems from new Lycium barbarum L. cultivar "Ningqi 3" released by Ningxia Academy of Agricultural and Forestry Sciences were regarded as explants to investigate the vitrification of Lycium barbarum plantlets in tissue culture under different concentrations of 6-BA,sucrose,agrose,culture temperature,and illumination duration with MS as basic medium. The results show that the conditions for maximal proliferation coefficient and minimal vitrification are as following: the basic medium with 0.2 mg/L 6-BA,3% sucrose and 0.65% agarose; culture at 25 ℃; 12 h/d(daylight lamp,2 000 lx) illumination. 相似文献
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为预防菜用大黄玻璃化苗的产生、提高组培苗的培养质量,以菜用大黄丛生芽为外植体,以1/2 MS为基本培养基,研究了蔗糖、琼脂、6-BA对菜用大黄组培苗玻璃化现象的影响,同时测定了玻璃化苗与正常苗的生理指标差异。结果表明:适于菜用大黄组培苗最大增殖及玻璃化率最小的培养基组合是添加30g·L~(-1)蔗糖+6g·L~(-1)琼脂+1.0mg·L~(-1) 6-BA+1.0mg·L~(-1) NAA的1/2 MS培养基;正常苗的可溶性糖和可溶性蛋白含量明显高于玻璃化苗,而玻璃化苗的组织含水量比正常苗的略高。 相似文献
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[目的]解决樱桃砧木吉赛拉组培快繁生产中玻璃化苗发生及污染问题.[方法]通过对培养基中激素、蔗糖、琼脂浓度的调节及培养温度的控制,防止玻璃化苗发生;通过培养基中加入杀菌剂,寻求解决组培苗污染.[结果]培养基中细胞分裂素6 - BA的浓度控制在1 mg/L以下、蔗糖浓度40 g/L、琼脂浓度6 g/L左右、培养温度24℃左右,可有效地预防玻璃化苗的发生;在培养基中加入500~1 000 mg/L多菌灵50;可湿性粉剂,可有效防止污染的发生.[结论]在樱桃砧木吉赛拉5号组培快繁中,细胞分裂素6 - BA浓度、蔗糖浓度、琼脂浓度、培养温度对试管苗产生玻璃苗都有一定的影响,其中,细胞分裂素6 - BA浓度、培养温度的影响更为明显.为了防止污染的发生,培养基中添加多菌灵50;可湿性粉剂效果较好. 相似文献
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草莓离体培养中玻璃化的发生及克服措施研究 总被引:1,自引:0,他引:1
以“丰香”品种为试材,MS为基本培养基,研究草莓玻璃化的克服措施,结果表明,在6-BA试验浓度范围内(1-3 mg·L^-1),玻璃化率随6-BA浓度的增加而增加;40 g·L^-1蔗糖,降低MS基本培养基中铵离子浓度,加入活性炭,采用透气膜封口在一定程度上均能使玻璃苗恢复正常. 相似文献
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《(《农业科学与技术》)编辑部》2008,(4)
[Objective] The aim of this study is to reveal the disinfectants and disinfection methods,medium components,and embryoid culture method on dissociative microspore culture.[Method] B5 as basic medium appended with different concentrations of sucrose,agar and different hormone combinations was used to optimize the culture technique for DH line in Brassica napus L.[Result] Both the 15 min disinfection of NaClO containing 5% Cl-and 10 min disinfection of 0.1% HgCl2 performed well in disinfection and subsequent embryo production;in the extraction process of dissociative microspores,B5 medium containing 2% sucrose could achieve a good embryo production effect;under dark condition microspores were firstly incubated at 32 ℃ 5-7 d,then at 25 ℃ 12-15 d,and finally transferred to 25 ℃ oscillator(60-65 r/min)for 3-7d,when the embryoid would become full ripeness;1/2MS medium appended with 1.2% agar,0.02% NAA,2.0 mg/L 6-BA,3.4 mg/L AgNO3 and 2% sucrose was helpful for embryoid differentiation and plantlet generation,presenting low degree of browning and slight vitrification.[Conclusion] The results may facilitate DH Line in rape production in large scale and high efficient transformation system. 相似文献
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甘蓝型油菜DH系培养技术优化 总被引:2,自引:0,他引:2
[目的]研究消毒处理方式、培养基成分和胚状体培养方法对油菜游离小孢子培养的影响。[方法]以B5培养基为基础培养基,添加不同浓度的蔗糖、琼脂及不同激素组合进行试验,对油菜DH系的组培技术进行优化。[结果]含2%Cl-的NaClO消毒15 min与0.1%HgCl2消毒10 min培养效果较好,都能达到良好的消毒和产胚效果;在游离小孢子提取的过程中,B5液体培养基中蔗糖浓度为2%时能达到较好的产胚效果;小孢子培养首先在32℃暗培养5~7 d,然后25℃暗培养12~15 d,最后25℃振荡暗培养3~7 d胚状体就可完全成熟;1/2 MS培养基(附加1.2%琼脂+0.02%NAA+2.0 mg/L6-BA+3.4 mg/LAgNO3+2%蔗糖)有利于胚的分化和苗的形成,其褐化程度小,玻璃化程度低。[结论]该研究结果有助于甘蓝型油菜DH系的规模化生产及高效转化体系的建立。 相似文献
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甘蓝型油菜DH系培养技术优化(英文) 总被引:3,自引:0,他引:3
[Objective] The aim of this study is to reveal the disinfectants and disinfection methods,medium components,and embryoid culture method on dissociative microspore culture.[Method] B5 as basic medium appended with different concentrations of sucrose,agar and different hormone combinations was used to optimize the culture technique for DH line in Brassica napus L.[Result] Both the 15 min disinfection of NaClO containing 5% Cl-and 10 min disinfection of 0.1% HgCl2 performed well in disinfection and subsequent embryo production;in the extraction process of dissociative microspores,B5 medium containing 2% sucrose could achieve a good embryo production effect;under dark condition microspores were firstly incubated at 32 ℃ 5-7 d,then at 25 ℃ 12-15 d,and finally transferred to 25 ℃ oscillator(60-65 r/min)for 3-7d,when the embryoid would become full ripeness;1/2MS medium appended with 1.2% agar,0.02% NAA,2.0 mg/L 6-BA,3.4 mg/L AgNO3 and 2% sucrose was helpful for embryoid differentiation and plantlet generation,presenting low degree of browning and slight vitrification.[Conclusion] The results may facilitate DH Line in rape production in large scale and high efficient transformation system. 相似文献
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[目的]为单花香石竹种苗的工厂化生产提供理论指导。[方法]以单花香石竹花茎上的腋芽为外植体,MS为基本培养基,通过无菌体系的建立、增殖和生根培养研究其组培技术。[结果]接种10 d后的污染率为10%~20%。当BA浓度为0.5 mg/L时,30 d后基本无玻璃化现象发生。当BA浓度增加到1.0和2.0 mg/L时,30 d后单花香石竹组培苗有较严重的玻璃化现象。MS+BA0.5 g/L+NAA0.01 g/L+活性炭0.5 g/L是其适宜的增殖培养基,增殖率高、组培苗生长健壮;1/2MS+NAA0.5 g/L+0.5 g/L活性炭是其适宜的生根培养基,生根迅速、质量好。[结论]该研究为单花香石竹组织培养选择培养基提供了试验依据。 相似文献