| Study on the effect of soil water potential on stem diameter variation of peach tree |
|
View Fulltext View/Add Comment Download reader |
| |
| DOI：10.7606/j.issn.1000-7601.2010.05.33 |
| Key Words: peach tree soil water potential stem diameter variation |
|
| Hits: 238 |
| Download times: 197 |
| Abstract: |
| This test is mainly to study the variation discipline of stem of peach tree in the condition of different soil water potentials. The test is designed in four treatments, which are -100～-110 kPa(A), control under natural condition(B), -10～-20 kPa(C) and -40～-60 kPa(D). Then analysis is made of the difference of the daily change of the stem of peach tree in each area in different seasons. The results indicate that the daily growth of the stem in dormant time is almost negative value. In the first period, the average of daily growth is between 20～50 μm. In the second period, the average of daily growth is between 30～70 μm. In the period of growth stopping, the average of daily growth is in alteration of positive and negative. At the same time, in each area the growth of the stem of peach tree in growing periodicity is significantly different and the subsequence is D＞C＞A＞B. From the comprehensive analysis, in growth periodicity of peach tree, the soil water potential kept at -40～-60 kPa will be propitious to the growth of peach tree. |
|
|
|