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AgriLIFE
Extension -Denton County
306 N. Loop
288, Suite 222
Denton, Texas
76209-4887
January 22,
2008
PRUNING MAKES
FRUITS MORE PRODUCTIVE
Contact: John
N. Cooper, County Extension Agent-Horticulture, 940.349.2883
e-mail:
jn-cooper@tamu.edu
Many kinds of
fruits can be successfully grown in North Texas including, apples,
blackberries, grapes, peaches, pears, plums and strawberries. Producing
quality fruit depends on a host of factors especially cultivars, soil,
water, weather and culture.
Although nutrition, weed control, and water management are important,
perhaps no cultural practice is more important than pruning. Pruning
accomplishes several things to make fruits more productive.
Through pruning, old diseased wood is removed, preventing further
spread. Pruning rejuvenates old wood, stimulating the production of
more vital, fruitful wood. Limb development is directed through pruning
to create better limb spacing for maximum light capture and more uniform
fruit load distribution resulting in better fruit development and
greater plant capacity.
Pruning in simplest terms is plant part removal. Fruit thinning is a
type of pruning used to increase fruit size. Removal of broken or
diseased roots prior to planting is also a kind of pruning which results
in healthier plants that establish more readily. In the end though,
limb removal is the most common form of pruning.
Because different fruiting plants have different fruiting habits they
are each pruned in different ways. Apples and pears are both
pome fruits and are both pruned very much
the same, to the "modified central leader" system. Peaches and plums
are both stone fruits and are pruned to the "open center" or “vase”
system.
Blackberries are a type of bramble, fruiting on canes in their second
spring so the spent canes are removed each summer after fruiting to make
way for the new fruiting canes called, prima canes which fruit the next
spring. Grapes are produced on perennial woody vines pruned to the
"bilateral cordon" system when they get about three to six inches of
growth on them in the spring. Strawberries are evergreen perennials
thinned to a "matted-row" system where the old mother plants are removed
after harvest each spring leaving only new daughter replacement plants
to grow one foot apart down double staggered rows.
Fruit
pruning begins the day the fruits are planted. Although container-grown
plants are sometimes available, fruits are usually sold as bare-root
stock, i.e., no soil ball. This means eighty percent of the roots are
lost when the plants are dug. Cutting the roots is not a problem
because the plants are dormant. Care should be taken that the remaining
live roots are not exposed to dry air for more than a few minutes or to
freezing temperatures for more than a few seconds.
Because of root losses, the tops of bare-root fruit stock should be cut
back at planting to compensate for the reduced root system. In
strawberries, this means removing wilted leaves. In trees, remove
one-third to one-half of the top. In grapes, remove all but two nodes
above the ground line. Blackberries are planted from dormant root
pieces without tops. If you have planted fruits this winter and have
not pruned them to this degree you need to do so now.
Many
people think pruning is restricted to the dormant season but this is a
big mistake. Summer pruning directs growth where you want it so less
corrective pruning is required, less wood is removed in the winter, and
full bearing capacity is reached at an earlier age. This type of
pruning is called “training” and begins with the first growing season.
Learn
how your fruits grow and train them right from the start. Call the
Denton County office of Texas AgriLife
Extension Service at 940-349-2883 for details about the various fruit
pruning systems and which ones are right for your fruits or visit our
website at
http://aggie-horticulture.tamu. edu.
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The
information given herein is for educational purposes only. Reference to
commercial products or trade names is made with understanding that no
discrimination is intended and no endorsement by
AgriLife Extension is implied.
______________________________________________________________________________
Extension programs serve people of all ages regardless of socioeconomic
level, race, color, sex, religion, disability or national origin. The
Texas A&M University System U. S. Department of Agriculture, and the
County Commissioners Courts of Texas Cooperating.
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