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JUDIE STEEVES


Alberto Dorigoni was a featured speaker at this year’s B.C. Tree Fruit Horticultural Symposium.


chemicals and the concomitant worry about sprays and drift.


The more-compact tree makes it easier to control weeds. Dorigoni reports a 40 per cent saving in chemicals.


If you’re mechanical pruning, he says you still need to fine-tune it by hand.


Dorigoni is also researching the creation of more than one central leader so that vigour is diverted to form more leaders (one to four) and more dwarfing.


“Multi-leader trees are receiving much attention around the world,” he comments.


You can transform a spindle into a fruit wall too. “You need straight, vertical trees.”


Alleys between rows depend on the canopy width; 1.5 meters are possible with fruit walls and trees that are 2.7 metres tall.


A yield potential as high as 80 tons per hectare is achievable by changing your training system. “You have to re-think tree architecture to maximize the fruiting wall with little secondary structure,” he says.


“It’s a new way of training your orchard system and it needs major re-thinking,” he adds. Dorigoni’s research is at the Institute of Agriculture at San Michele All’Adige experimental farm in Trento province, south of Bolzano.


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British Columbia FRUIT GROWER • Summer 2015


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