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通过对4个种源黑果枸杞(Lycium ruthenicum)种子大小、质量及含水量的测定,对发芽率、发芽势、萌发启动速度、发芽指数等萌发特性的研究结果表明:(1)4个种源黑果枸杞种子存在一定的差异,大小依次为青海>新疆>民勤>额济纳旗,质量和含水量依次为青海>民勤>新疆>额济纳旗;(2)4个种源黑果枸杞种子的发芽起始温度为15℃,恒温下的最适发芽温度为25℃,变温下的最适发芽温度为20℃/30℃,各种源种子在变温条件下均高于恒温条件下的各项发芽指标,即20℃/30℃为黑果枸杞的最佳发芽温度,其发芽势最高为额济纳旗75.8%;发芽率最高为民勤89.0%,且前三者发芽率没有明显差异;(3)额济纳旗种源黑果枸杞种子在发芽起始至最适温度之间的发芽能力均优于其它3个种源。除20℃/30℃的发芽率之外,4个种源种子的发芽势、萌发启动速度和发芽指数的顺序为额济纳旗>民勤>青海>新疆。
The results of germination rate, germination potential, germination initiation speed, germination index and other germination characteristics of four species of Lycium ruthenicum seeds showed that: (1) four species The results showed that there were some differences in the source of black goji berries with the following order: Qinghai> Xinjiang> Minqin> Ejinaqi, followed by Qinghai> Minqin> Xinjiang> Ejinaqi; (4) Germination temperature was 15 ℃, the optimal temperature for germination was 25 ℃, and the optimum temperature for germination was 20 ℃ / 30 ℃. The germination temperature of all kinds of seeds was higher than that under constant temperature The highest germination potential was 75.8% of Ejinaqi. The highest germination rate was 89.0% of Minqin, and the germination rate of the first three was no significant difference. ( 3) The germination capacity of the seeds of Aegilops sinensis black fruit between the initiation of germination and the optimum temperature were better than the other three provenances. In addition to the germination rate of 20 ℃ / 30 ℃, the order of germination potential, germination initiation rate and germination index of four provenances was Ejin Banner> Minqin> Qinghai> Xinjiang.