| This paper investigate six excellent hybrids of Mongolia Seabuckthorn×Chinese Seabuckthom as experiment materials, female Chinese Seabuckthom growing in Fu Xin, the parents, Mongolia Seabuckthom seedlings introducing from foreign country as check groups, observe and compare the traits of fruit and nutritive growth, the main results are as fallow:1. The traits of hybrids improve obviously. Most fruit and seed traits surpass Chinese Seabuckthom. The spine density reduce obviously to Chinese Seabuckthom.2. Extremely significant differences are found in all traits among experiment groups of hybrids. It is favourable condition for choosing excellent varieties in further reach.3. The hybrids grow well in the flatland with higher groundwater level and better soil nutrients. But berry length/width ratio isn't been effected by natural conditions. In rainy year, some fruit and leaf traits are actived better, the spine density don't have relation with rainfall.4. berry yield per tree with 100-berry weight, berry width, etc., 100-berry weight with berry length, 1000-seed weight, etc., seed length with berry length, etc., seed thickness with 1000-seed weight, etc. have significant positive correlation. Berry length/width with berry density, 1000-seed weight, etc., berry density with berry length, seed thickness, etc.have significant negative correlation.5. Acorrding to the analysis results of trait comparison, we primarily choose No.2 and No.4 as new varieties for fruit use.
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