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本文根据选种目标,经过2-3个轮回选择的油桐十个品种、家系的连续5年的测试发现其发枝力、果序丛生量、杆形和产量等主要经济性状各自保持相对一致,且具相对稳定的遗传特征。它们的遗传力均高于70％,其中浙桐选 7、5、9、2、08、10、15号等可获得30.14％的遗传增益,表现了明显的群体产量优势。另外,它们的经济系数(鲜果出油率)高,种子品质优良(发芽率达90％以上),油质好(桐酸含量75％以上),并具有较强的适应性和抗性。
In this paper, according to the selection target, after ten rounds of selection from two to ten varieties of tung tree, five years of family test found that the main economic traits of sticking force, fruit clustering, rod shape and yield are relatively consistent , And with a relatively stable genetic characteristics. Their hereditary power was higher than 70%, of which Zhentong selected 7,5,9,2,08,10,15, etc. can get 30.14% of the genetic gain, showing a clear advantage of population yield. In addition, they have high economic coefficient (fresh fruit oil yield), good seed quality (germination rate of 90% or more), good oil quality (more than 75% of eleostearic acid content), and have strong adaptability and resistance.