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以引种条件下8种新疆野生蔷薇种子为试材,采用低温层积处理和打磨种子的方法,研究了种皮厚度和低温层积处理对新疆野生蔷薇种子的影响。结果表明:种皮厚度为0.408~0.665mm,发芽率均超过50%的由高到低依次是弯刺蔷薇、疏花蔷薇、伊犁蔷薇和宽刺蔷薇,发芽率分别为87.17%、72.17%、75.44%和68.97%,与这4种蔷薇种子种皮打磨处理相比,无明显差异。而蔷薇种子种皮厚度>0.665mm,正常种皮厚度下,尖刺蔷薇、刺蔷薇、大果蔷薇和大花密刺蔷薇发芽率均较低,其中大花密刺蔷薇的发芽率为0.00%,与种皮打磨处理相比,都不同程度地提高了这4种蔷薇种子的发芽率。弯刺蔷薇、伊犁蔷薇、疏花蔷薇和宽刺蔷薇种子发芽高峰基本集中于将种子进行低温层积处理后7~9d。
Eight species of wild rose seeds from Xinjiang were used as materials to study the effects of seed coat thickness and cold stratification treatment on wild rose seeds in Xinjiang using cold stratification and sanding seeds. The results showed that the germination rates were 87.17%, 72.17%, respectively. The germination rate was 0.408 ~ 0.665mm, the germination rate was over 50% 75.44% and 68.97%, respectively. There was no significant difference between the two seed treatments. While the seed coat thickness of rose seed was> 0.665mm. Under the normal seed coat thickness, the germination rate of spiny rose, thorn rose, big fruit rose and big flower rose was lower, and the germination percentage of rose rose was 0.00% , Compared with seed coat grinding treatment, all increased the germination rate of these four kinds of rose seeds to different extents. Curd rose, Iris rose, rose and rose thorn Rose seed germination peak concentrated in the seed after cryogenic layering 7 ~ 9d.