Evaluation On Fruit Economic Traits Of Elite Individuals Selected From Seeding Progenies Among Oil-tea Tree(Camellia Oleifera) Provenances In Guangxi

The camellia is our unique woody edible oil variety. The paper, in view of the present situation of scarce Camellia oleifera fine breed in North Guangxi.focuses on175Camellia oleifera superior plants in primary election which come from8provenances of Camellia oleifera seedlings planted in San Mengjiang Forest Farm Guangxi in1985. By means of field observation, fruit analysis and DTOPSIS comprehensive evaluation, growth fruiting characteristics, per plant yield, fruit size, seed yield, oil yield and other important indicators which come from different primary strains in different sources have been systematically researched. According to comprehensive evaluation of different fruit economic characteristics, the best single plant in comprehensive performance has been selected in north Guangxi. The results as following:(1)12indicators including the fruit producing rate, color and so on as the preliminary evaluation index system of camellia economic characters have been chosen. By the brainstorming method, Delphi method, and the regression equation index screening method, we made a screening of selected indicators, and determined4evaluation indexes of economic characteristics:they are fruit output, fruit size, seed rate, and oil rate; and used the AHP to accumulate the weight of each index. The weight of fruit output is0.3908, the weight of fruit size is0.0675, the weight of seed rate is0.1509, and the weight of oil rate is0.3908.(2) All the character indexes have been analyzed by DTOPSIS method. Four economic indexes including fruit output, size, seed rate, and oil rate of camellia are analyzed by DTOPSIS method. Finally we confirmed the C value of175camellia varieties, and selected10camellia varieties in good quality. These10kinds of camellia are in the front row and suitable for development in Guangxi with DTOPSIS method. They are linong40, linong41, sandao7705, qusuo30-11-5, linong71, linong62, gui94, San boling44, San boling19, TY7605. And according to the analysis, the oil rate of superior Camellia oleifera is high, and the oil production of these10varieties are respectively44.64kg/mu,44.67kg/mu,38.40kg/mu,41.84kg/mu,36.20kg/mu,38.59kg/mu,37.61kg/mu,37.91kg/mu,34.75kg/mu and35.72kg/mu.