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运用远缘杂交的方法,培养以离抗性为特点的刺玫月季品种群,是我们的目标和愿望。连续3年用现代月季品种与中国原产的蔷薇属植物杂交,共采用121个杂交组合,授粉1645朵花,获得913粒杂种种子,成苗54株,有可能成为建立刺玫月季品种群的第一批品种基础。在了解亲本授粉结实习性基础上,采用不同的授粉方法进行试验,同时观察了花粉在柱头上萌发、生长等情况,发现影响结实率的主要因子是亲本个体的差异,杂交组合的亲和力也很重要。还研究了杂种种子败育与成苗情况,讨论了提高结实率和加速育种进程的途径。
It is our goal and wish to use the method of distant hybridization to cultivate the population of Thorn Rose species which is characterized by resistance. For three consecutive years, modern Chinese rose hybrids were cultivated with Chinese native rose plants. A total of 121 hybrid combinations were used to pollination of 1645 flowers, 913 hybrid seeds and 54 seedlings were established. The first batch of varieties based. Based on the understanding of the pollination and seed-setting habits of the parents, different pollination methods were used for the experiment. At the same time, the pollen germination and growth on the stigma were observed. The main factors influencing the seed setting rate were the differences of the parents and the affinity of the crosses . The abortion and seedling establishment of hybrid seeds were also studied, and the ways to improve the seed setting rate and accelerate the breeding process were discussed.