M.27 - Smallest clone 15 seedling size poorly anchors high density plantings
M.9 - 25 size most dwarfing rootstock used in Wisconsin precocious
Bud 9 Originates from Russia similar to M.9
These rootstocks require staking
107 Semi-dwarf Rootstocks
M.26 - 50 size cold hardy used commercially does not tolerate wet soils
M.7 55 size widely use rootstock disease tolerant adapted to a wide range of soils slow to bear suckers
G.30 Cold tolerant resistant to fireblight weak graft unions
108 Selecting Rootstock
An established tree (top working or use trunk)
109 Mound Layering (Stooling)
Mound layering involves cutting back a plant to near the ground during the dormant season and mounding soil over the base where new shoots will develop.
Dwarf fruit tree rootstock.
110 Stool Layering 111 Stool Layering 112 (No Transcript) 113 (No Transcript) 114 Stool Bed 115 (No Transcript) 116 (No Transcript) 117 Collecting Dormant Scion Wood
Collect dormant wood in late February.
Select one year-old water sprouts or shoots.
One fourth to 3/8 diameter stems (pencil sized).
Store in moist cool (36 degree) environment.
Graft only closely related plants (same species (red maple/Autumn Blaze white ash/ Autumn Purple Ash).
Unrelated plant species usually result in plant failure.
119 Selecting the Grafting Site
Select a smooth and straight area on both the rootstock and scion wood.
Root stock grafts may have side roots trimmed.
Match the cambial zone on both the rootstock and scion wood.
120 Match the Cambial Zone 121 Whip and Tongue Graft 122 Whip and Tongue Graft 123 GraftUnion 124 (No Transcript) 125 Cleft Graft 126 Cleft Graft in Future Years 127 Modified Cleft Graft 128 Root Graft 129 Root Graft 130 Bud Grafting
Budding is a form of grafting the scion is reduced in size to one bud.
Can be done either during dormancy or during the growing season.
Bud Shield 131 Bud (Shield) Graft 132 Bud (Shield) Graft 133 Summer Bud Graft 134 Field T-budding 135 (No Transcript) 136 Cutting ¾ inch bud chip 137 (No Transcript) 138 (No Transcript) 139 (No Transcript) 140 (No Transcript) 141 Fruit Crops
142 The End
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