Studies on Selecting and Breeding of High Linoleic Acid Content and High Oil Yield Oiltea Camellia Clones

This paper was on the basis of the national standard and methods of selecting and breeding of high oil yield oiltea camellia clones .The characteristics of relevant trait index of the yield and the oil quality were studied.The results indicated that the yield and quality of the oiltea camellia had not obvious relativity.The main economic trait index had different nature and hereditary stability.The yield related positively to the ratios of fresh fruit oilness and the seed kernel,but had no obviously relevancy with the component part of fatty acid.The linoleic acid and the linolenic acid and the palmitic acid related negatively to the oleic acid.The linoleic acid related positively to the seed ratios of fresh fruit and the palmitic acid.Under the double index systems control of oil yield(above 750 kg·hm-2) and oil quality(linoleic acid content must be more than 8.5%),6 high yield and high linoleic acid content clones were screened out as follows: GS848,G6,G68,GX46,GS834,G71.The average oil yield was 1 063 kg·hm-2,the content of oleic acid was 80.0%,and the content of linoleic acid was 9.7%.All the clones had been provided with high and stable yield and superior quality.