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taste or bitter fruit of cucumbers.
Scab - a fungus disease on cucurbits which causes leaf spots that eventually leave small ragged holes and sunken, olive-green velvety spots that crack the fruit.
Hybrid - refers to the offspring of two parents, each of which is stable and predictable in its own characteristics. For most hybrid crops, the plant breeder can combine plant traits to the progeny will yield earlier, usually with more uniformity, vigor, production, and disease resistance.
Determinate - usually refers to a tomato variety in which the main stem finally produces a terminal flower cluster and stops vertical growth. The plant is short, often stable without staking w hen compared to an indeterminate tomato which grows until frost stops it. The determinate plant produces tomato clusters at each node and ripening is early and concentrated.
Jointless - indicates the tomato can be pulled off the plant leaving the stem behind. The pedicel or stem does not form an abscission layer an inch or two above the fruit and therefore detaches at the tomato.
V,F,N, and T - are symbols for the soil-borne organisms to w hich a tomato variety is resistant. V & F stand for Verticillium and Fusarium which are fungus organisms that cause wilting of tomato plants and other crops. N stands for Nematodes which are miscroscopic roundworms which can feed on plant roots. In large enough numbers, they can stunt the roots of infected plants, causing wilt and death. T represents Tobacco Mosaic Virus which deforms the leaves and stunts the plant. TMV is often brought into the garden by smokers (it is often present in tobacco products) and spread by mechanically handling the plants. Since there is no chemical control, it is a serious problem once a garden is infected. Stated with the name of a tomato variety, each letter indicates some degree of resistance of that tomato line to that particular problem.
Open-pollinated - Plants that have been pollinated naturally by wind, insects, or by normal plant movement necessary to fertilize the flowers and later to produce fruits. Open-pollinated plants are not manipulated by growers to achieve pollination.
Dr. Diane Relf is a horticulture specialist with Virginia Cooperative Extension and is a member of the faculty of Virginia Tech.
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