侧柏种源试验初步研究

Studies on provenance trial of Platycladus orientalis( L).Franco.

为选择适宜重庆干旱、贫瘠碱性土壤生长的侧柏种源 ,对来自侧柏天然分布区的 30个侧柏种源进行苗期及造林试验研究 .分析结果表明 :侧柏适生于重庆市干旱、贫瘠的碱性土壤 ,各种源生长量存在显著差异 .根据各种源适应性、抗性、生长量进行种源选择 ,初选出河南开封、河南永城、山西长治、山东费县。

A study of seedling stage and afforestion was carried out on thirty provenances of Platycladus orientalis (L).Franco introduced from its natural distribution region to choose fine seed sources, which are adapt to grow on arid, infertile limestone soil in Chongqing area. Analyses of variance show that \%Platycladus orientalis (L).Franco are adapt to grow on arid limestone soil, but the growth of different seed sources shows significant difference.On the basis of comparison of adaptability,resistance and growth, the trials show that those provenances introduced from Kaifeng and Yongcheng of Henan Province, Changzhi and Jincheng of Shanxi Province and Feixian of Shandong Province grow well in Chongqing area.