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油桐是我国主要木本工业油料树种。一般油桐当年种植后(播种)第二年开始分枝,第三年(有的品种第二年)开始结实。据调查油桐植株的分枝点高低,树体结构状况与结实量有着密切关系,而一年生苗木的生长状况,地上部分与地下部分的生长发育,则是构成树体结构的主要基础,也是影响今后产量高低和结实寿命长短的物质基础。本试验目的在于研究
Tung is the main woody oilseed species in our country. Tung general year after planting (sowing) branches began the second year, the third year (some species the second year) began to grow strong. According to the survey tung tree branches high and low, the tree structure and the status of the firm is closely related to the annual growth of seedlings, aerial parts and underground parts of the growth and development, is the main structure of the tree structure, but also affect Future material output level and the material basis of strong life expectancy. The purpose of this experiment is to study