The invention discloses a tissue culture technology of chestnut, also known as chestnut, which is produced in the east, south, north, southwest and northwest of China. Among them, Yanqing is rich in Beijing. Some of them need to be soaked in water to promote germination, some use physical means to open seeds, and some need to be soaked and germinated by fermentation or excreta discharged after chicken feeding. This paper deals with the method of raising seedlings of chestnut with high quality by rapid propagation in vitro. It is of great practical significance to establish a rapid propagation system of tissue culture of chestnut through the process of sterilization of explants, induction of cluster buds, rooting culture and transplantation of seedlings, and to speed up the popularization of good chestnut varieties and the development and utilization of resources.
【技术实现步骤摘要】
一种栗子的组织培养技术
本专利技术涉及植物生物技术中植物组织培养的方法,具体地说,涉及一种栗子的组织培养技术。
技术介绍
栗子又名板栗,我国东此、华南、华北、西南、西北有产。其中北京的延庆盛产,培育催芽有的要用水浸透催芽,有的用物理手段打启种子,有些要经过发酵或者鸡采食后排出的排泄物浸泡发芽。板栗刚采下立即播种,发芽困难,发芽水平低,须经过1~3个月的后期成熟之后,气温在14度时,才开始发芽。栗子大小相对以致种子中等、名熟、成熟期轮晚的为宜,即每千克120~160粒,且发芽率都在85%以上。小晚熟品种在9月下旬至10月成熟时,气温已低,种子生理活动减少,耐贮藏。栗子长期以来供不应求,加上人为的掠夺式砍伐导致栗子野生资源枯竭,因此有必要对其资源进行保护。近年来,栗子资源开发有了一定的规模,在江西、湖北、广东、福建等建立了GAP种植基地,对栗子野生资源保护工作起到了一定的促进作用。目前栗子主要通过种子进行种苗繁殖,但由于种子繁殖后代性状发生分离,不利于优质种质资源保护,制约了优质栗子的推广种植。因此,有必要建立栗子的组织培养技术,为其良种快速繁殖提供技术支撑和保障,也 ...
【技术保护点】
1.一种栗子的组织培养技术,其特征在于包括以下步骤:步骤1,丛生芽诱导:选取生长健壮无病虫的幼树当年生的带芽茎段作为外植体,用洗洁精水溶液浸泡16min,然后用自来水冲洗42min,擦干表面水分后备用,在超净工作台中以70%乙醇浸泡18s,0.1%升汞溶液消毒35min,再用无菌水清洗10次,擦干后切成长度为2cm的茎段接种到诱导培养基上,先在30℃条件下全暗培养32天,然后置于每天光照18小时,光照强度为1200lx,培养温度为30℃条件下培养,直至诱导形成丛生芽;诱导培养基为:MS+6mg/L6‑BA+2mg/L NAA+0.9mmol/L La(NO3)2+4.9%蔗 ...
【技术特征摘要】
1.一种栗子的组织培养技术,其特征在于包括以下步骤:步骤1,丛生芽诱导:选取生长健壮无病虫的幼树当年生的带芽茎段作为外植体,用洗洁精水溶液浸泡16min,然后用自来水冲洗42min,擦干表面水分后备用,在超净工作台中以70%乙醇浸泡18s,0.1%升汞溶液消毒35min,再用无菌水清洗10次,擦干后切成长度为2cm的茎段接种到诱导培养基上,先在30℃条件下全暗培养32天,然后置于每天光照18小时,光照强度为1200lx,培养温度为30℃条件下培养,直至诱导形成丛生芽;诱导培养基为:MS+6mg/L6-BA+2mg/LNAA+0.9mmol/LLa(NO3)2+4.9%蔗糖+1.2%琼脂+0.25%活性炭,pH值为5.8;步骤2,增殖培养:将步骤1所得的丛生芽转入增殖培养基上进行增殖培养,接种后先在30℃条件...
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