ISHS Acta Horticulturae 696: VII International Symposium on Temperate Zone Fruits in the Tropics and Subtropics - Part Two
EFFECT OF DIFFERENT ROOTSTOCKS ON ROOT DISTRIBUTION OF APPLE |
| Authors: | D.D. Sharma, J.S. Chauhan |
| Keywords: | rootstocks, apple, root distribution |
| Abstract:
Root distribution of twelve years old apple trees raised on M7 and MM106 rootstocks was studied by root excavation method. Root samples were collected vertically from different depths (0-100 cm) and horizontally at different distances (50-250 cm) from tree trunk. A major portion of roots was found to be present in 0-50 cm profile, whereas, very few roots were in 75-100 cm soil layer. Maximum root weight was observed in 25-75 cm soil depth. Regarding horizontal distribution of roots, 80 per cent of root density was in 50-150 cm area from tree trunk. The length of total roots and fibrous roots were found to be significantly higher in the trees grown on M7 rootstock. In 75-100 cm soil profile, trees on MM106 had significantly higher root length and root weight than those on M7 rootstock which showed that roots of MM106 penerate deeper in soil than M7 rootstock. | |
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