Abstract: All the 14 types of wild walnut seeds and two types of the relocated transplanting wild walnut seeds in the Wild Walnut Nature Reserve in Xinjiang were collected, with their phenotypic variability and growth characteristic analyzed. The seed vertical diameter, transverse diameter, and fruit weight of different types of wild walnuts were significantly different, and there was a great plasticity in different quantitative indices. The seed vertical diameter ranked as Juglans rostrata, J. scleroderma, J. oblonga, J. cardata, J. obliquerostrata, J. Triangulata, J. fusiformis, J. leptocarya, J. ovata, J. microoblonga, J. cathayensis, J. duriuscula, J. brevirostrata, and J. microcarpa in descending order, and the seed transverse diameter ranked as J. scleroderma, J. Rostrata, J. oblonga, J. cardata, J. cathayensis, J. ovata, J. obliquerostrata, J. triangulata, J. leptocarya, J. brevirostrata, J. microoblonga, J. microcarpa, J. fusiformis, and J. duriuscula in descending order. J. Microoblonga had the maximum average shell thickness, while J. obliquerostrata had the minimum average shell thickness. The fruit weight ranked as J. Scleroderma, J. oblonga, J. rostrata, J. cardata, J. cathayensis, J. ovata, J. obliquerostrata, J. triangulata, J. brevirostrata, J. microcarpa, J. fusiformis, J. leptocarya, J. microoblonga, and J. duriuscula in descending order. The growth relationships of the vertical diameter with weight and of the transverse diameter with weight were described quantitatively by exponentiation equation, exponential equation, and logarithmic equation, and all the growth relationships were allometric. The growth speed of the seed indicators at different growth stages could also be reflected by the equations mentioned-above. According to the analysis, the wild walnut after relocated transplanting had larger seeds.

Key words: total nitrogen, soil texture, total phosphorus, stoichiometric ratio., water stable aggregate, organic carbon