The invention provides a method for preparing a medium for rapid propagation of jasmine, which belongs to the field of jasmine propagation. It includes: 1. Preparing a primary culture medium, sequentially adding KT, CTK, sucrose, asparagus extract, agar to complete dissolution, adjusting pH, and sterilizing under high pressure to MS culture medium; 2. Preparing a multiplication culture medium, sequentially adding KT, acetic acid, sucrose and sucrose of formula amount into MS culture medium. Agar dissolves completely, adjusts pH and sterilizes under high pressure; adds indole acetic acid after cooling; 3. Prepares rooting medium: adds KT, sucrose, coconut juice, willow juice and agar in turn to MS medium, adjusts pH and sterilizes under high pressure. The beneficial effects are as follows: the preparation method is simple, easy to operate, low cost and environmental protection, and clearly provides different media for different stages of rapid propagation of jasmine, which can meet the different needs of different energy substances and active substances in different reproductive stages of jasmine, promote the healthy growth of seedlings, increase seedlings and strengthen seedlings.
【技术实现步骤摘要】
茉莉花快速繁殖用培养基的制备方法
本专利技术属于茉莉花繁殖领域,具体涉及茉莉花快速繁殖用培养基的制备方法。
技术介绍
茉莉[Jasminumsambac(L.)Aiton]为木犀科茉莉属常绿灌木,树冠呈直立状或半开展状,原产于热带、亚热带地区。常见的茉莉品种有蔓生茉莉、木本茉莉、宝珠茉莉、洋茉莉等60多种,依其花形构造可分为单瓣茉莉、双瓣茉莉、多瓣茉莉3种。中国是世界上茉莉产量最多的国家,年产量占世界总产量的60%以上,现以广西、福建、广东、云南等地种植最为广泛,其中广西是我国茉莉花最大的产地,占全国产量的80%。然而,茉莉花栽培品种单一,长期以来仅栽培广西横县当地双瓣茉莉,且病虫害逐渐增多,如白绢病已开始蔓延;茉莉自然结实率低,如双瓣茉莉仅为0.19%;有性繁殖后代分离严重,生产上多采用扦插繁殖,但长期的无性繁殖导致茉莉种性退化、抗逆性下降、花朵产量逐年降低。因此,应尽快应用组培快繁技术进行茉莉良种的商品化繁育,通过母树外植体的复壮和筛选再作离体培养,可进一步提高种苗质量;此外,也可以通过芽变筛选获得新品系。组培所需外植体材料很少,且增殖系数高,而扦插则需要大量枝条。因此,良种的繁育应以组培途径为主,而组培过程中,培养基对茉莉的生根状况及成活状况至关重要。
技术实现思路
本专利技术的目的在于提供茉莉花快速繁殖用培养基的制备方法,培养基的制备方法简单,其培养基中的促分化、促生芽、促生根的活性物质的生物学功能能到较好的保存,可满足从茉莉花种子到生根苗全时段的快速繁殖用培养基的营养需求,可显著提高生根率与根的健壮度。为实现上述专利技术目的,本专利技术提供以下技术方 ...
【技术保护点】
1.一种茉莉花快速繁殖用培养基,其特征在于,包括初代培养基、增殖培养基与生根培养基;所述初代培养基为:含有0.12~0.15mg/L KT、5~10mg/L CTK、22~25g/L蔗糖、12~15g/L天门冬提取液、8~10g/L琼脂的MS培养基,pH为6.4~6.6;所述增殖培养基为:含有0.25~0.3mg/L KT、5~6mg/L吲哚乙酸、1.5~2g/L醋酸、25~28g/L蔗糖、3~5g/L琼脂的MS培养基,pH为6.5~6.6;所述生根培养基为:含有0.3~0.4mg/L KT、30~32g/L蔗糖、15~25g/L椰汁、8~10g/L嫩柳汁、4~10g/L琼脂的MS培养基,pH为6.5~6.8。
【技术特征摘要】
1.一种茉莉花快速繁殖用培养基,其特征在于,包括初代培养基、增殖培养基与生根培养基;所述初代培养基为:含有0.12~0.15mg/LKT、5~10mg/LCTK、22~25g/L蔗糖、12~15g/L天门冬提取液、8~10g/L琼脂的MS培养基,pH为6.4~6.6;所述增殖培养基为:含有0.25~0.3mg/LKT、5~6mg/L吲哚乙酸、1.5~2g/L醋酸、25~28g/L蔗糖、3~5g/L琼脂的MS培养基,pH为6.5~6.6;所述生根培养基为:含有0.3~0.4mg/LKT、30~32g/L蔗糖、15~25g/L椰汁、8~10g/L嫩柳汁、4~10g/L琼脂的MS培养基,pH为6.5~6.8。2.根据权利要求1所述的一种茉莉花快速繁殖用培养基,其特征在于,所述增殖培养基中还含有1~1.2mg/L(-)-8-苯基薄荷醇。3.根据权利要求1所述的一种茉莉花快速繁殖用培养基,其特征在于,所述生根培养基中还含有1.5~3g/L薏米浸出液。4.如权利要求1所述的一种茉莉花快速繁殖用培养基的制备方法,其特征在于,包括:制备初代培养基:往MS培养基中依次加入配方量的KT、CTK、蔗糖、天门冬提取液、琼脂至完全溶解,调节pH,121℃高压灭菌15~25min;制备增殖培养基:往MS培养基中依次加入配方量的KT、醋酸、蔗糖、琼脂至完全溶解,调节pH,于121℃高压灭菌15~25min;冷却后,于...
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