铁核桃

应用ITS序列及SSR标记分析核桃与铁核桃亲缘关系

Application of ITS sequence and SSR markers to study the relationship between Juglans regia and Juglans sigillata

野生铁核桃嫁接改造技术的研究

A Study of Grafting Technology of Hard Husk Wild Walnut Trees

至于铁核桃是一个独立的种，还是作为核桃种下的一个生态类型，仍需要进行深入研究。

But the J. sigillata is one independent species or belong to one ecological type in J. regia , the further studies are needed . 3 .

方差分析结果显示，13个核桃和铁核桃品种（优系）在每个抗旱性指标上均差异极显著，故此对各品种（优系）进行了两两之间的单因素多重比较。

The variance analysis shows that the differences in each drought resistance index of all 14 varieties appear extreme significance , then the single factor multiple comparison between two varieties ( excellent clones ) is calculated .

铁核桃花粉在4℃下贮存2~3周，花粉活力在25%~40%之间，能够满足杂交育种要求。

After storing 2 to 3 weeks under the condition of 4 ℃, the activity of J. sigillata Pollen ranged from 25 % to 40 % , indicating that the pollen could keep the need of crossing .