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Tomato and potato cultivars are commonly classified as determinate or indeterminate according to the amount of time that they produce new leaves and flowers. Varieties that produce few leaves and flowers over a shorter period are classed as determinate and those that produce new leaves and flowers for longer are classed as indeterminate. [1] [2 ...
Readers can pose questions or get more information by calling 417-874-2963 and talking to one of the trained volunteers staffing the Master Gardener Hotline at the University of Missouri Exten ...
Current tomato Indeterminate Regular leaf Ostensibly from the original wild tomato from Mexico. They are smaller than most cherry tomato types. [88] Micro Tom Red 50–60 1 oz Cherry Micro Determinate Regular Leaf Considered world's smallest tomato, Micro Tom is a cultivar used mainly in laboratory experiments [89] Millionaire Pink 80–85 Heirloom
While the Roma is an open-pollinated variety rather than a hybrid, it has been steadily improved to the point that most Roma tomato vines are verticillium- and fusarium wilt-resistant (thus the VF in the name). Most commercial plum tomatoes sold in markets in the Western Hemisphere are Romas or related types.
Tomato plants are vines, becoming decumbent, and can grow up to 3 m (9.8 ft); bush varieties are generally no more than 100 cm (3 ft 3 in) tall. They are tender perennials, often grown as annuals. [40] [41] Tomato plants are dicots. They grow as a series of branching stems, with a terminal bud at the tip that does the actual growing.
The growth of nitrogen-fixing root nodules on legume plants such as soybean and pea is either determinate or indeterminate. Thus, soybean (or bean and Lotus japonicus) produce determinate nodules (spherical), with a branched vascular system surrounding the central infected zone. Often, Rhizobium-infected cells have only small vacuoles.
In the United States, San Marzano tomatoes are the genetic base for another popular paste tomato, the Roma tomato. The Roma is a cross between a San Marzano and two other varieties (one of which was also a San Marzano hybrid ), [ 4 ] and was introduced by the USDA 's Agricultural Research Service in 1955.
A genetically modified tomato, or transgenic tomato, is a tomato that has had its genes modified, using genetic engineering. The first trial genetically modified food was a tomato engineered to have a longer shelf life (the Flavr Savr ), which was on the market briefly beginning on May 21, 1994. [ 1 ]