【作者】 王淑菊；

【导师】 陈伊里；

【作者基本信息】 东北农业大学 ， 作物遗传育种， 2002， 硕士

【摘要】 本试验利用气雾栽培法对马铃薯开花进行了研究，其目的是解决马铃薯常规育种中所面临杂交困难的问题，为杂交育种中亲本材料的促花措施提供新的技术手段——气雾栽培法促进马铃薯开花。试验共分三部分：一是通过气雾栽培与田间栽培的马铃薯现蕾数、开花数和花粉生活力等几方面的比较，论证气雾栽培法促进马铃薯开花的可行性；二是通过测定气雾栽培与田间栽培条件下马铃薯花蕾和花中内源激素含量，来分析花蕾和花的脱落与内源激素及环境条件的关系；三是对匍匐茎和营养液进行了不同处理，探索气雾栽培最佳营养液配方和处理方法，提高经济效益。 通过这三部分试验，为气雾栽培法促进马铃薯亲本材料开花提供了理论依据，使马铃薯杂交育种亲本材料的处理有新的突破，为野生种和新型栽培种等具有优良性状的种质资源的利用提供新的方法和途径。 试验研究结果表明： 1．气雾栽培法促进马铃薯开花，其现蕾数、开花数及花粉生活力都明显优于田间栽培。 2．通过对气雾栽培法和田间栽培的马铃薯花蕾、花中内源激素含量进行比较，结果表明：环境条件和营养状况影响内源激素含量和比例从而影响花蕾和花的脱落。 3．营养液成分和浓度掌握适当，环境条件控制适中，不摘除匍匐茎摘除也可以保证一定开花量和花粉活力。 4．本试验所研究的气雾栽培法促进开花的最佳营养液配方为标准营养液+C+B。更多还原

【Abstract】 Few flowers available for crossing in some potato cultivars bother breeders in conventional breeding program. The inflorescence of potatoes cultivated by aeroponics was studied in order to investigate the possibility by using aeroponics to promote the formation of flowers. The main contents of the study included: (1) comparisons between plants growing in field and cultivated by aeroponics for numbers of buds setting and flowers, and pollen fertility; (2) comparisons of the hormone contents in buds and flowers on plants growing in these two different environments; and (3) selection of the best medium for growing potato plants. The results were as following.1. By aeroponics, potato inflorescences were promoted effectively, and the number of flower buds and flowers, and pollen fertility were much superior to those of plants growing in field.2. The hormone levels were affected by environmental conditions and nutrition status of plants, which were related to the falling down of flower buds and flowers.3. The number of flowers and pollen fertility were influenced by taking off or not of the stolen, and environmental conditions, and the concentration and components of liquid medium would influence the number of flowers and pollen fertility.4. Based on the result of this study, the best liquid medium was MS + C + B.更多还原