云南高原山地油茶筛选优株表型研究

Study on phenotype of superior plants of camellia oleifera Abel in Yunnan plateau mountain region

为了解云南高原山地油茶生长状况,本文选择具有代表性的富宁县,研究了该县筛选优株表现状态。结果表明:(1)富宁县油茶种质资源十分丰富,具有进一步筛选及优良种质资源收集的价值。(2)随着海拔高度的增加,油茶结果数量、生长量表现为显著二次抛物线(先增后减)变化,含油率呈现二次抛物线变化趋势,以海拔高度850m为二次抛物线拐点,在拐点处油茶生长表现最佳。(3)树体高大的油茶树,不仅表现为树干粗壮、冠幅大、结果数量多、果实大,而且植株营养状况也较好。

With Funing county as the representative location, the growth performance of superior plants of Camellia oleifera Abel in Yunnan plateau mountain region was studied. The results showed that： 1） the germplasm resources of Camellia oleifera Abel in Funing county are very abundant, with great potential for further screening and collection of fine germplasms; 2） with the increase of altitude, the fruiting quantifies and growth of camellia exhibited a significant quadratic parabola changes, with the inflection point at altitude of 850m, where the camellia growth performance was the best; 3）for those high and large trees, they not only showed sturdily trunks, large crown width, more fruiting numbers, and larger fruits, but also showed a better nutritional status.