What is a Rootstock?
The EMLA 111 rootstock is an apple tree rootstock. A rootstock controls the tree’s size, precocity, cold hardiness, and partly its disease resistance (such as fireblight). In order to grow a reliable and high quality fruit tree, growers graft the scion, which is above the ground and responsible for the fruit’s characteristics and disease resistance, onto the rootstock, which is underground.
EMLA 111 Rootstock
EMLA 111 rootstock, also knows as Malling-Merton 111, MM.111 EMLA, is one of the most vigorous and adaptable of apple rootstocks, reaching around 85% of the size of a standard tree (so about 15-25 ft. tall). However you can still make it smaller with summer pruning. It was created by crossing Malling 2 and Northern Spy. Moreover the EMLA 111 rootstock can thrive in a variety of soils, including wet, dry, or poor. Additionally it encourages early fruiting and is also deeply rooted and well-anchored.
A rootstock that grows well in one location, may not grow well in another. Therefore you must consider your specific site considerations before choosing a rootstock. When choosing a rootstock, some considerations for growers are
- how well the rootstock adapts to your soil
- the disease pressure on your site
- how well the rootstock anchors
- what size tree is optimal for your site
- precocity (bearing fruit at a younger age)
From our experience growing in New York, we have found the Budagovsky, Geneva, and EMLA series to be great options since they are virus free and produce very healthy trees.
Size of Tree
- While a rootstock does affect the size of the tree at maturity, the variety of apple, the soil type, the amount of sun and the way the tree is pruned will also have a significant impact on the ultimate height.
- For example, an apple tree on an M9 rootstock can grow to the same height as one grown on an MM106 rootstock with the appropriate care. However, the M9 tree will have fewer and thinner branches.
- Therefore, when you see below the height of the tree at maturity, it is an approximate maximum.
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