| In this study, taking Section leuce in Ili region as experimental materials, fine variety of S. leuce with high
growth rate and more suitable for Ili River basin were selected by using clustering method, and quantitative maturity age of
the fine variety of S. leuce was predicted to provide theoretical basis for production and management of S. leuce. The results
showed that, by classification analysis S. leuce in Ili region could be divided into two categories, one category had high
growth rate with the average tree height growth of 25.63 m, an average annual growth of 1.602 m, with the average diameter of
41.9 cm, an average annual growth of 2.619 cm, with the average volume of 1.337 m3, an average annual growth of 0.084 m3;
the second category had ow growth rate with the average tree height growth of 23.28 m, an average annual growth of 1.455 m,
with the average diameter of 25.98 cm, an average annual growth of 1.624 cm, with the average volume of 0.506 m3, an
average annual growth of 0.032 m3. The quantitative maturity age of S. leuce with high growth rate was 14-25 years. Key |
