Glossary - T-Z
Tassel – The structure at the tip of the corn plant, which is the male flower.
Topsoil – The uppermost and the darkest layer of the soil that contains most of the organic matter, living organisms and plant roots.
Toxicity – Inherent capacity of a material to produce death or injury.
Transplanting – Shifting of a plant from one soil or growth medium to another.
Trap crops – Plants that attract insect pests keeping them away from the vegetable crop.
True-to-type – The plants are actually the vegetable and variety the label indicates.
Unmixed fertilizers - Fertilizers that contain only one plant nutrient
Variety – A botanical subdivision within a species.
Vermiculite – Lightweight expanded mica often used in soil-less media.
Viability – The percentage of seed that will germinate.
Vine crops – Crops that produce vines that grow along the ground including watermelon, muskmelon and pumpkins.
Virus – Particles containing DNA or RNA that are much smaller than bacteria and require a host cell to multiply.
Warm season – Vegetables that germinate and grow best when temperatures are warm.
Waterlogged – The air spaces in the soil are filled with water.
Wheel hoe – An oscillating or stationary hoe blade mounted on a wheel with handles.
Winter annuals – Germinates during the fall, overwinters and produces seed during the spring.
Winter melons – Melons that have a smooth rind surface, do not separate from the vine when ripe and lack a distinctive flavor.
Winter squash – A squash whose fruit are harvested when uniform in color and rind is hard.
Zucchini – A squash whose fruit is harvested immature, have a green colored skin and are long cylindrical-shaped with little or no taper.