Glossary
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| There are 84 entries in the glossary. | |
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| Term | Definition |
| DRY ROT | Any of several fungal diseases that afflict plants; commonly called dry rot or wilt. |
| EBB-AND-FLOW (or FLOOD and DRAIN) | A hydroponic system in which the medium, usually aggregate pebbles, is periodically flooded with nutrient solution and then drained again, feeding and aerating the medium and root system. |
| F1, F2, F3, &c. | The F1 generation is the result of crossing two different varieties; a cross of two F1 plants produces F2 seed; and so on. |
| FOLIAR FEEDING | Misting plants with fertilizer solution, which is absorbed by the foliage. |
| FUNGICIDE | A product that destroys or inhibits fungus. |
| FUNGUS | Any of a major group (Fungi) of saprophytic and parasitic spore-producing organisms usually classified as plants that lack chlorophyll and include molds, rusts, mildews, smuts, mushrooms, and yeasts. Common fungal diseases that attack plants are "damping-off," Botrytis, and powdery mildew. |
| GERMINATION | The process of causing the initiation and development of a plant from seed; also the production of a pollen tube by a pollen grain |
| GROWING MEDIUM | Materials that are sometimes used in hydroponic growing to support the plant's roots and, sometimes, to hold nutrient. |
| HARDEN-OFF | To gradually acclimatize a plant to a more harsh environment. A seedling must be hardened-off before planting outdoors. |
| HORMONE | Chemical substance that controls the growth and development of a plant. Root-inducing hormones help cuttings root. |
| Glossary V2.0 | |