The Research Of Swida Wilsoniana Wanger Fruit Development And Accumulation Of Fatty Acid

Swida wilsoniana wanger is a kind of wild specie woody oil plant which the oil can be produced bio-diesel. It is mainly distributed from the Yellow River basin to the hill lands of Southwest China. Adapting to mild climate, adequate illumination, and plenty of rain. Swida wilsoniana wanger is wild, semi-wild state or semi-artificial cultivation, there hasn't been done so much in Swida wilsoniana wanger's fruit development and rule of fatty acids prosessing, the main study is how to make bio-diesel out of fruit's oil, the primal research is still at the preliminary stage, particularly in the fruit physiology, lack of more comprehensive system research.Now,Swida wilsoniana wanger fruit has been sdudied from the formation to mature and below are the conclusions:1 Swida wilsoniana wanger's fruit development process was S type, Fruits experienced rapidly growing after flowered and before mid-June, mainly increase volume of the fruits, Between mid-June and mid-September was a slow growing period, the period is long, which primarily reflected the skin thickening and the number of cells increasing, end of September was the fruit's rapid growing period before matruation. The critical period of fruit development was the middle and ending parts, the oil in fruit increasing was connected to the content of starch and soluble significantly, which determined the weight,quality and yield of fruit. Corresponding measures should be taken in the production, such as advanced organic fertilizer, pruning, enhance growth potential so as to expand fruits, which is benefit to improving yield and quality.2 Through study on the daily change of photosynthesis of Swida wilsoniana wanger, August is the key period of oil transformation. Because of low capacity of drought-tolerant, field management must be strengthened,3 Swida wilsoniana wanger fruit maximum content of oil was up to 34.23 percent; oil quality is similar to commonly used oil. Swida wilsoniana wanger oil is a semi-dry oil. The whole fruit process,stearic acid, palmitic acid, oleic acid decreased, linoleic acid increased; content of Stearic acid was very slim, about 2 percent, content of oleic acid and linoleic acid were the most, the second place was Palmitic acid, so content of saturated fatty acids were high, which maintained at over 70 percent.