Thursday, February 28, 2019

Dormant Pruning: A Starting Place

February 28, 2019|Written by Gill 

Pruning is arguably the most important cultural practice a grape grower performs. Pruning has a dwarfing (pruned vines are physically smaller) and invigorating effect on the vine. When wood is removed, the roots that previously supported the top growth will have an abundance of hormones, carbohydrate reserves, and water and mineral absorbance capacity. This root abundance or 'excess supply' stimulates the remaining shoots to grow and expand at a rapid rate This rate is called "vigor", defined as rate of growth, not amount of growth, or overall vine/plant size. Read More


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Petit Manseng Propagation of Own-Rooted Cuttings

Close up of yellow tag with the words: "Petit Manseng" on it. This is the variety of the harwood cuttings.
February 28, 2019|Written by Gill

The wires in the photos are connected to power in the shed and bring electrical power to the heating pad in the bottom of the container. Immediately on top of the heating pad is peat based potting soil and that is covered with about 4 inches of sand. The bottom temperature is set at about 75 degrees F. The top of the propagation box is open during the day  covered at night, and left at ambient temperature. The cuttings were sourced from Foundation Plant Services in Davis California. The top of each cutting was waxed to mitigate desiccation.
View of the large, blue Rubbermaid plastic"tote" container, the container is empty and electric heating element is visible. The "tote" is on a white table outside adjacent to metal building.
View of white table with blue "tote" and a clear plastic bag of sand. The sand is called "Playsand" and is used to fill the container and the hold cuttings.



Large, blue Rubbermaid plastic "tote" container, almost full of wet sand, with hardwood grape cuttingsstuck upright in the sand with the tops of the cuttings waxed to prevent drying.

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