YANG Fengyu,YANG Fan,GUO Runhua.Natural Germination of Eight Xinjiang Wild Rose Seeds Under Introduction Conditions[J].Northern Horticulture,2017,41(13):108-112.[doi:10.11937/bfyy.20164854]
引种条件下八种新疆野生蔷薇种子自然萌发规律
- Title:
- Natural Germination of Eight Xinjiang Wild Rose Seeds Under Introduction Conditions
- 文献标志码:
- A
- 摘要:
- 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0.408~0.665 mm，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>0.665 mm，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7~9 d。
- Abstract:
- Eight Xinjiang wild rose seeds were used as materials to investigate the effect of seed-coat thickness and low-temperature stratification on Xinjiang wild rose seeds under introduction conditions by low-temperature stratification treatment and seed polishing.The results showed that with a seed-coat thickness of 0.408-0.665 mm，seeds with a germination rate>50% were Rosa beggeriana Schrenk，Rosa laxa Retz.，Rosa ilicnsis and Rosa platyacantha Schrenk in a descending order (germination rate，87.17%，72.17%，75.44% and 68.97%，respectively).Compared with the seed polishing of these four rose seeds，no obvious differences were detected.With normal seed-coat thickness of rose seeds (>0.665 mm)，the germination rate of Rosa oxyacantha M.Bieb.，Rosa acicularis Lindl.，Rosa albertii Reg.and Rosa spinosissima L.var.altaica was relatively low，with Rosa spinosissima L.var.altaica showing a germination rate of 0.00%.Seed polishing increased the germination rate of these four rose seeds in different degrees.The seed germination energy of Rosa beggeriana Schrenk，Rosa ilicnsis，Rosa laxa Retz.and Rosa platyacantha Schrenk were basically concentrated in 7—9 days after low-temperature stratification treatment.
参考文献/References:
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备注/Memo
第一作者简介：杨逢玉（1975-），女，硕士，副教授，研究方向为园林植物引种与培育。E-mail：44683336@qq.com.责任作者：郭润华（1962-），女，硕士，教授，研究方向为园林植物育种。E-mail：690305702@qq.com.基金项目：新疆维吾尔自治区科技成果转化资助项目（201354112）；新疆应用职业技术学院科学研究重点资助项目（XYZY2015KZD004）。