Grapevine Pollination Needs – Are Grapes Self-Fruitful

Grapevine Pollination Needs – Are Grapes Self-Fruitful

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By: Amy Grant

Most fruiting trees must be cross-pollinated, which meansanother tree of a different variety must be planted nearby the first. But whatabout grapes?Do you need two grapevines for successful pollination, or are grapevinesself-fertile? The following article contains information on pollinating grapes.

Are Grapes Self-Fruitful?

Whether you need two grapevines for pollination depends onthe type of grape you are growing. There are three differenttypes of grapes: American (V.labrusca), European (V. viniferia)and North American native grapes called muscadines(V. rotundifolia).

Most bunching grapes are self-fruitful and, thus, do notrequire a pollinator. That said, they will often benefit from having a pollinatornearby. The exception is Brighton, a common variety of grape that is notself-pollinating. Brighton does need another pollinating grape in order to setfruit.

Muscadines, on the other hand, are not self-fertilegrapevines. Well, to clarify, muscadine grapes may bear either perfect flowers,which have both male and female parts, or imperfect flowers, which only havefemale organs. A perfect flower is self-pollinating and does not need anotherplant for successful grapevine pollination. An imperfect flowering vine needs aperfect flowered vine nearby to pollinate it.

The perfect flowered plants are referred to as pollinizers,but they also need pollinators (wind, insects or birds) to transfer the pollento their flowers. In the case of muscadine vines, the primary pollinator is thesweatbee.

While perfect flowered muscadine vines can self-pollinate andset fruit, they set much more fruit with the aid of pollinators. Pollinatorscan increase production by as much as 50% in perfect flowered, self-fertilecultivars.

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Learn How to Prune Grape Vines for a Fruitful Harvest

Bethany Hayes

Bethany is a suburban homesteader who grows over 30 types of vegetables in her garden every year to provide the vegetables needed to feed her family of six for the entire year. She practices organic gardening without the use of any pesticide and chemical.

Learning how to prune grape vines is crucial if you want your vines to be healthy and productive. Some vines out there can be left alone or only need light pruning, but that’s not the case for grapevines.

When left unpruned, grapevines become a tangled mess that looks unsightly and doesn’t produce enough fruit. Next to providing adequate support, pruning is one of the most important things you can do for your plants.

You don’t want to be shy when pruning your vines, either. You can cut them back by 90%, and they’ll be more productive than ever. You can’t attack vines randomly, however. There’s a science of how to prune grape vines, and we’ll show you how to get it done.

Cut A Grape Vine

Prune off all lateral branches from a young grape vine during the first winter after planting. The vine will look like a whip. Cut off all shoots from the whip the next winter except two shoots growing 2 to 6 inches below the horizontal training wire. They are collectively termed the cordon. In the fourth growing season, the buds on the cordon will grow into a canopy of hanging shoots, each of which will produce abundant fruit. Measure the distance between the shoots at pruning time in the fourth winter. Leave no more than 50 buds per plant. Repeat this pruning each year during winter.

  • Apply a new layer of compost around the vine, again only 1 to 2 inches deep, to form a new circle of mulch.
  • Cut off all shoots from the whip the next winter except two shoots growing 2 to 6 inches below the horizontal training wire.

You can apply the compost more heavily if your vine is young to help it grow strong and mature quickly, but keep it light after the first year or two.

Watch the video: Muscadine Grape Vines +Best Fruit Tree Pollination+2018+


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