Each individual vine can produce up to 100 pounds of fruit per year, but average annual yield is approximately 50 pounds per vine.

They yield about 4.5 to 6 kg per vine.

The first flowers that open per vine should be pollinated, so the beans are similar in age.

Biodynamically produced, the grape yield average is extremely low, 1.2 pounds per vine.

In Chianti, most quality conscious producers limit their yields to 3 pounds (1.5 kg) of fruit per vine.

Once suckering and green harvesting have been completed, the maximum number of clusters allowed per vine is 14.

When grown in a vineyard, the vines need to be wire trained with large canopies to accommodate the 30 to 40 buds per vine that is typical.

The aim is to keep a maximum of 12 renewal buds per vine (each renewal bud will produce a side branch bearing a cluster of grapes).

By 1853, the grapes were for sale, but within several years, competing growers had begun raising their own crops of Concord grapes, purchased from Bull for $5 per vine.

The number of buds per vine may be increased by one renewal bud for every 0.2 metres of additional spacing.