Glossary - Principles of Horticulture - page 277

false fruit a fruit containing structures derived from flower parts other than the ovary

(a pseudocarp)

fasciation an abnormal flattened-stem or flower growth caused by a disturbance in the

stem apex

fertigation describes irrigation when it is used to deliver nutrients as well as water

fertilisation the fusion of a male sex cell (the male gamete) from a pollen grain with a

female sex cell (the female gamete) in the ovule to produce an embryo

fertilizer a concentrated source of plant nutrients that are added to growing media

fibrous root many roots growing from the base of the stem with no dominant root

Field Capacity (FC) the amount of water the soil can hold against the force of gravity

foliar feed describes the application of nutrients in a spray to the foliage

formulation the read-to-use pesticide product containing active ingredient and other

necessary ingredients

friable the consistency of the soil when it is easily cultivated i.e. readily forms

crumbs

fruit the structure formed from the ovary wall usually after fertilisation

fungicide, contact a fungicide that acts against fungi on the leaf surface

fungicide, systemic a fungicide that travels through vascular tissues

gamete sex cell

genus a group of individuals within a family which have characteristics in common

germination of seeds the emergence of the young root or radicle through the testa, usually at the

micropyle

gravitational water the water that can be removed from the soil by the force of gravity

growth the increase in size (dry weight) of cells, organs or the whole plant

gymnosperms seed bearing, non-flowering plants

gynoecium the female part of the flower consisting of the carpels

habitat an area occupied by a community of organisms

half-hardy a plant able to survive temperatures between 1°C to −5°C

hardiness a plant's ability to survive low temperatures

hardy a plant able to survive below −5°C

hazard something with the potential to do harm

heated glasshouse (hardiness) a plant requiring temperatures above 5°C to survive

hemiparasite a plant which is parasitic on other plants and also photosynthesises

herbaceous perennial a perennial that is non-woody and generally loses its stems and foliage at the

end of the growing season

herbicide, contact a herbicide that acts at the point of contact

herbicide, residual a herbicide that remains chemically stable and active over a period of months

herbicide, selective a herbicide that kills only certain chosen weeds

herbicide, translocated a herbicide that travels through pholem and xylem to reach all plant organs

herbivore an organism that feeds on plant tissue

hermaphrodite flower a flower with both male and female parts

heterotroph see consumers

hydroponics the cultivation of plants in nutrient solution without soils

hypogeal germination germination in which the cotyledon/s remain below the ground inside the testa

incompatible pollen pollen which fails to germinate or grow

indehiscent fruit a fruit that does not split open to release the seeds

interspecific competition competition for resources between individuals of different species

intraspecific competition competition for resources between individuals of the same species

juvenile growth non-reproductive growth