The Research Of Camphor’s Genetic Variation And Seeds Selection

Camphor growth traits of 60 camphor family which planted in the forest of Nanping City in 2007 was be investigated, measured and analyzed in this paper, the result provide a reference for material select.The main research results are as follows:1.The result analysis of variance for family growth index showed that various characters have an extremely significant differences between index system at families.The result analysis of variance of the indexes in the family system showed that the main classification have an extremely significant difference in families. The results of analysis of variance of provenance growth index showed that wihtout significant difference between various characters in provenance.2.The growth characters analysis between camphor family showed a significant or very significant positive correlation. All the growth traits analysis showed a significant correlation, growth traits and quality traits analysis showed a negative correlation, especially when the relations between the volume and diameter,the volume and tree height,which at the 0.01 level reached 0.955 and 0.7553.3. The tree high heritability of Family camphor is 0.4032, the heritability of DBH is 0.5376, and the heritability of volume is 0.5402. The heritability of crown is 0.5403,The branches heritability under the high is 0.5336, the main classification heritability is 0.472 and the collateral genetic gain is 0.306.12 fine families were selected, include jol4, ypl9, yp17, yp30, Jol, zp4, yx4, yp26, YX2, YX3, jo4, the genetic gain of DBH reached 7.31%, the genetic gain of volume more than 19.38%.4.10 fine families were selected by Using breeding value assessment, combined with index equation building and 20% selected rate of the home system. The result show that the average of tree height, DBH and volume were higher than the mean average,which were13.06%,25.77%,68.11%.5.The selection of 10 fine timber families in the home system were chosen for the selection of the fine timber.Based on the volume index which as a main basis, combined with DBH and tree height index,16 strains of good plant were selceted.6. The superior individual extract essential oil stems were choosen to analysis the content of main components,the result of correlation analysis and variance analysis showed that there were negative correlation relationship between four major components and various plant have an extremely significant differences between main ingredients.10 strains of good plant which over the average were selected by screening of linalool content.7.4 of oil plant which with high quality and linalool content were above 90% were selected in combination with the analysis of 16 strains of essential oil major component content in superior individual leaf.