The performance of three different apple rootstocks (M9, M106 and M7) was tested in Golden Delicious trees with low and high fruit load and under two water regimes. Midday leaf water potential was higher in trees on M9, lower in those on M7 and intermediate on M106. Trees on M7 showed the highest stomatal conductance in non limiting water conditions. This was equal or higher on M9 and M106 in water stress conditions, although the recovering after watering was more rapid on M7.
Effect of rootstock on water balance of 'Golden delicious' apple trees
PONCHIA, GIORGIO;PITACCO, ANDREA
1985
Abstract
The performance of three different apple rootstocks (M9, M106 and M7) was tested in Golden Delicious trees with low and high fruit load and under two water regimes. Midday leaf water potential was higher in trees on M9, lower in those on M7 and intermediate on M106. Trees on M7 showed the highest stomatal conductance in non limiting water conditions. This was equal or higher on M9 and M106 in water stress conditions, although the recovering after watering was more rapid on M7.
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