A trellis or a pergola are used.
There are types of grapes that could be. There are wine grapes, table grapes and grapes that are dried for raisins. Each has different varieties for wine and table grapes. I live in a grape growing region, but only raisins and table grapes are produced here. Yes, I think you could classify them as a specialized crop.
Vinifera grapes are European grapes that provide the primary source of wine and table grapes.
Raisins, wine, and table grapes
No grapes survive fermentation. Yeast (which produces fermentation) eats the sugars in the grapes, producing alcohol.
To successfully grow eggplant on a trellis, ensure the trellis is sturdy and tall enough to support the plant as it grows. Plant the eggplant near the trellis and gently tie the stems to the trellis as they grow. Provide regular watering, sunlight, and fertilization to promote healthy growth. Harvest the eggplants when they are firm and glossy for best results.
I am guessing here, but I think about 20-30%. Most of our grapes are table grapes and either stay as table or dried into raisins. Yet, our wine industry is growing by leaps and bounds.
The nile is trellis
That could be a hatrack, hutch, or hacienda.
trellis
its trellis
A. J. Winkler has written: 'Berry thinning of grapes' -- subject(s): Thinning, Grapes 'Maturity tests for table grapes' -- subject(s): Ripening, Grapes