山东鸡爪绵核桃花粉形态的扫描电镜观察
Journal of Shandong Forestry Science and Technology（2021）
Abstract
以山东省地方品种鸡爪绵核桃为试材,利用扫描电镜技术,对其花粉形态进行了观察和分析,并与早实核桃进行了比较分析.结果表明,山东鸡爪绵核桃与早实核桃相似,其花粉粒为长球形,花粉以单粒的形式存在.核桃花粉表面均匀分布着颗粒状雕纹,且较为密集,萌发孔凸出于花粉表面.鸡爪绵核桃花粉粒大小为731.82～801.19 μm2,与新疆早实和'绿香'核桃品种差异不显著.鸡爪绵核桃花粉(P/E)值在1.22～1.41之间,其形状为长球形,花粉形态的扫描电镜观察为鸡爪绵核桃资源的鉴定和分类提供依据.
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