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采用不同播种密度、不同覆土厚度、种子不同摆放方式,在湖南省森林植物园对核桃进行播种育苗试验。结果表明,采用不同覆土厚度和种子不同摆放方式,核桃的播种发芽率差异极显著。播种密度为10 cm×30 cm时核桃播种发芽率最高,平均发芽率达到73%;采用种尖向一侧摆放方式时核桃播种发芽率最高,平均发芽率达到73%;覆土厚度为6 cm时核桃播种发芽率最高,平均发芽率达到76%。
Using different sowing densities, different covering thicknesses and different seed placement methods, walnut seedlings were tested in Hunan Botanical Garden. The results showed that the germination rate of walnut was significantly different with different soil cover thickness and different seed placement patterns. The seed germination rate of walnut was the highest with seeding density of 10 cm × 30 cm, and the average germination rate was 73%. The germination rate of walnut seeds was the highest when the planting density was 10 cm × 30 cm. The average germination rate was 73% Walnut sowing the highest germination rate, the average germination rate reached 76%.