野生花卉歪头菜种子萌发特性研究

The study on the germination of seeds of wild flower Vicia unijuga A.

以野生花卉歪头菜(ViciaunijugaA.)的种子为试验材料,对其萌发特性进行了研究,以期为引种栽培提供理论依据。结果表明:歪头菜的种子长约5mm,扁圆形,灰绿色或黑褐色,千粒重为21 310g,属于中小粒种子;其种子的休眠是由硬实性引起的,属于强迫休眠,破除休眠可采用浓硫酸处理,以酸蚀30min效果最好,发芽率、发芽势、发芽指数最高,分别为93%、72%、19 85;其最适发芽温度为20～30℃;光照对其种子萌发有一定的抑制作用。

The seeds of wildflower Vicia unijuga A.. were studied on the basis of the germination in this paper. The nature of the germination of the seeds of Vicia unijuga A. were researched systemically in order to provide theoretical basis for its being introduced and cultivated. The result showed that the seeds are green-gray or brown-black, about 5 mm long,oblate. The weight per thousand-granule was 21.310 g. And they are minimal-medium seeds. The dormant character of the seeds of Vicia anijuga A. was forcing dormancy caused by hard seed vessels. The dormancy could be broken down by sulphuric acid. The most appropriate time was 30 min. The highest germination rate and index of the and the highest germination power were 93%,19.85,72% respectively. The optimum germination temperature of the seeds of Vicia anijuga A. was 20～30℃. It indicated that illumination somehow restrained the germination of the seeds of Vicia anijuga A.