一串红(Salvia splendens Ker-Gawl)花粉活性研究

目的]探讨4种花色一串红花粉的生活力和在不同条件下的萌发率,为一串红育种提供理论依据。方法]获取4种花色一串红花粉,采用TTC法和培养基法研究其生活力和萌发率。结果]在TTC浓度为0.5%时活力测定效果最好,其中紫色和红白相间一串红达到94%。适宜一串红花粉萌发的培养条件为蔗糖浓度为10%,硼酸浓度为1.5%的液体培养条件下萌发率最高,达到83%(紫色一串红)。在常温贮藏条件下,6 h左右开始萌发,12 h的时候萌发率达到最高(紫色一串红为86%),48 h以后花粉几乎丧失了萌发力。结论]花粉的生活力和萌发规律在一串红可育性上起关键作用。

Research on Pollen Germination and Vitality of Salvia splendens Ker-Gawl

Objective] This experiment discussed the vitality and germination rate of 4 color of Salvia splendens Ker-Gawl pollens on the different conditions,it could offer theoretical evidence for Salvia splendens Ker-Gawl's breeding.Method] It was important that we should obtain 4 color of Salvia splendens Ker-Gawl pollens,the vitality and germination rate of 4 color of Salvia splendens Ker-Gawl pollens were investigated by TTC method and medium laws.Result] The results showed that when TTC concentration was 0.5%,the vitality of determination was the best,and the vitality of the purple and the red-white color Salvia splendens Ker-Gawl was both 94%.The 15% sucrose and 1.5 boric acid were the best conditions for pollen germination,the germination rate was 83%(Salvia splendens Ker-Gawl of the purple color).The pollen began to germinate at about 6 h on the condition of storage at room temperature,the pollen had the highest germination rate at 12 h(Salvia splendens Ker-Gawl of the purple color was 86%),and the pollen almost lost germination ability after 48 h.Conclusion] The vitality and germination of pollen play a key role in Salvia splendens Ker-Gawl's breeding.