The invention provides a method for cultivating rootstock seedlings of Pecan clones. In the seedling selection of a few individual vigorous growth, strong seedling, the root cutting propagation, establish excellent clones of fast-growing clones, with root seedlings as rootstocks, and the use of Chupu legacy as the root of cultivation season of rootstock material, so continuously provide fast growth the excellent rootstock seedlings. Further screening is based on affinity. The seedling has the advantages of simple operation, the survival rate of up to 100% root cuttings, 6 clones seedlings root diameter from August of that year at 5cm 5mm above the lowest percentage of 89.2%, the highest 94.8%, are much higher than the same year seedlings of 26.9%, and the seedling uniformity, variation coefficient is only 23.3%~25.4%, less than 54.1% of the seedlings. In addition, the propagation coefficient of the method is high, the rootstock seedlings grow well, the root system is developed, the facilities and labor costs are greatly reduced, and the latter has no seed cost. The grafted seedlings have high uniformity, and can avoid late incompatibility.
【技术实现步骤摘要】
一种培育薄壳山核桃速生良种砧木的方法
本专利技术涉及一种薄壳山核桃的育苗方法,属于果树栽培
技术介绍
薄壳山核桃【Caryaillinoensis(Wangenh)K.Koch】为世界著名干果树种,其果壳较薄,可食率高,营养丰富,风味独特,深受消费者喜爱;同时,薄壳山核桃还是高档木本食用油料树种和果材兼用树种。因此,薄壳山核桃极具经济价值和开发潜力,在国内和国际市场前景广阔。薄壳山核桃在我国的引种栽培已有百年历史,但早期多以实生苗栽培,作为观赏、林木和林果兼用树种栽培。近年来,因干果市场的需要,薄壳山核桃作为果树的栽培逐渐引起重视,发展速度大幅度增加,但与社会需求相比仍有较大差距,其制约因素主要是繁殖速度。薄壳山核桃的育苗周期长,繁殖系数普遍较低。近年来由于嫁接方法的改进,嫁接成活率有较大幅度的提高,但育苗周期长的现象没有大的改变,砧苗木的生产速度一直是其制约因素。利用设施栽培也可以加快砧木苗的生长,从而实现当年播种当年嫁接,然而这也增加了设施成本和管理成本。迄今为止,所有关于大量生产薄壳山核桃品种商品苗的育苗方法都没有脱离播种这个环节,由于薄壳山核桃种 ...
【技术保护点】
一种薄壳山核桃砧木苗的培育方法,其特征在于,通过对实生苗或现有根蘖苗的筛选,选出速生的优良单株,并反复利用根段扦插建立速生优良无性系,并将所繁殖的无性系根插苗作为良种嫁接所用砧木。
【技术特征摘要】
1.一种薄壳山核桃砧木苗的培育方法,其特征在于,通过对实生苗或现有根蘖苗的筛选,选出速生的优良单株,并反复利用根段扦插建立速生优良无性系,并将所繁殖的无性系根插...
【专利技术属性】
技术研发人员:王传永,陆小清,张凡,陈红,李云龙,蔡小龙,
申请(专利权)人:江苏省中国科学院植物研究所,
类型:发明
国别省市:江苏,32
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