Further Reading

Land-grant college Web sites have links to the horticultural cooperative extension for your state, which provide fact sheets online and can recommend a soil testing lab.

Natural Resources Conservation Services

http://www.nrcs.usda.gov

This site has a link where teachers and students can find out about conservation of soil and water with Backyard Conservation Tip sheets. There is also a plant database.

USDA Web site

http://www.usda.gov

This site has links for information on organic certification and commercial horticultural crops.

United States National Arboretum

http://www.usna.usda.gov

This site has an interactive USDA Plant Hardiness Zone Map, virtual tours and plant galleries of woody ornamentals, a list of state trees and flowers plus horticultural links with information on pest management.

The following sites offer virtual tours, image galleries, and links to garden and horticultural information on plants from different ecosystems.

Brooklyn Botanic Garden (http://www.bbg.org) is in New York City. Denver Botanic Garden (http://www.botanicgardens.org) is in Colorado. Desert Botanic Garden (http://www.dbg.org) is in Arizona. Hawaii Tropical Botanical Garden (http://www.htbg.com) is in Hawaii. Longwood Gardens (www.longwoodgardens.org) is in Pennsylvania. Missouri Botanic Garden (http://www.mobot.org) is in St. Louis. Royal Botanic Gardens: Kew (http://www.rbgkew.org.uk) is in England. The Berry Botanic Garden (http://www.berrybot.org) is in Oregon. United States Botanic Garden (http://www.usbg.gov) is in Washington, D.C.

agronomy, defined, 4

Colorado River, 80-81

Albert, Howard, 12

commercial horticulture, 80-89

alkalinity, 53-54

common names, 28

alkaloids, 22

community gardens, 101

allergies, 44

compaction, 51

allochemicals, 69

companion crops, 14, 72

angiosperms, 18-19, 23

composting, 10, 12-14, 52, 65-66, 70

animal pests, 73-74

conifers, 19

annual plants, 22

container gardens, 98

auxins, 40

conventional produce, 7-12

Corbett, Edward, 106

Bacillus sp., 66-67, 72

corn blight, 84

Bacillus thuringiensis (Bt), 72

cotyledons, 19

bedding plants, 87, 88

critical night length, 50

binomial nomenclature, 25-26

crop rotation, 7, 14, 67-68

biofuels, 81

crowding, 75

biogeochemistry, 52

crusts, 75

biological control, 15, 72

cultivars, 26-27, 81

bioterrorism, 80, 84

cultural requirements, 48-51, 51-53,

blood meal, 55

56-60

Botyris cinerea, 75, 76, 86

cuttings, 6, 36-39

Boussingault, Jean Baptiste, 8

cycads, 19

breeding, 41-44

cytokinins, 40

bryophytes, 18

Burbank, Luther, 41-42

Darwin, Charles, 41-42

Dead Zone, 12

calcium carbonate, 54-55

deadheading, 75

calli, 40

deciduous plants, 24

capillary action, 85

deer, 73, 74

capitalization, 26

dichotomous keys, 28

carbon dioxide, 86, 88

dicotyledons, 19, 21, 22, 23

careers, 104

diseases, 67, 74, 84

carotenoids, 24

diversity, 81-83

cereals, 6

division, 75-76

chemicals, 10-12, 41, 85

DNA, 44

chlorophyll, 24

dormancy, 32-33

chloroplasts, 48, 49

double cropping, 7

classification of plants, 18-24

drip irrigation, 57-59

clay soils, 51, 52

drought tolerant plants, 59

climate, 60

drupes, 25

climbing plants, 76-77

cold treatment, 33-34

earthworms, 65-66

colleges, 15, 104

ebb and flow system, 85

Encyclopedia of Organic Gardening, 14 entomology, 69 ethylene, 88-89

fertilizers. See also composting commercial horticulture and, 81 conventional methods and, 10, 11-12

organic gardening and, 14, 55-56 soil alkalinity and, 54 transplantation and, 41 field heat, 89 floriculture, 5, 87, 104 flowers, 5, 19, 28, 33-35, 50 fluoride, 57

Food and Drug Administration (FDA), 44

forestry, 4 foxtail, 68 frankincense, 106 frost, 35-36

frozen-food industry, 81 fruits, 5, 25, 88-89 fungi, 59-60, 66, 75

gardens, 92-96, 96-101 gene banks, 84 genetic diversity, 81-83 genetically modified organisms

germination requirements, 32-33

gnetinae, 19

grafting, 7, 38

grapes, 5

green manuring, 66, 68-69

greenhouse crops, 83-87

greensand, 55

groundwater, 11-12, 80

gymnosperms, 18-19

gypsum, 54-55

half-hardiness, 35 hand pollination, 41 handling, post-harvest, 89 hardiness, 34-35, 92 harvesting, 87-89 herbariums, 28-29 herbicides, 12, 69 herbs, 22 hibiscus, 21 hoes, 68 hormones, 40 horticulture therapists, 104 house plants, 87 humidity, 59 humus, 10, 52 hybrids, 28

hydroponics, 8-10, 84-85

Indore method, 12 infrared light, 51

insecticides, 10-11, 67-68, 72-73, 85 insects, 34-35, 69-73, 85-86 integrated pest management (IPM),

15, 64-72, 73-77 intensity, light, 48-49, 51 irradiation, 41 irrigation, 7, 56-59, 80-81

jobs, 104

K. See potassium land beetles, 71

land-grant colleges, 15, 104

landscape architects, 104

landscape horticulture, 5

last average frost date, 34, 35-36

leaching, 12

Leguminosae family, 22, 23

Liebeg's Law of the Minimum, 52-53

light, 48-51, 86 Lighty, Richard W., 106 lilies, 20, 23 lime, 54-55

Linnaeus, Carolus, 26, 27 loams, 51

location, selection of, 92-93 Low Input Sustainable Agriculture (LISA) program, 15

macronutrients, 52 maintenance, overview of, 74-77 media, 36 meristem cells, 40 methyl bromide, 67 microbes, 10, 13-14, 64-66, 70, 85 microclimates, 98 micronutrients, 52-53 minerals, 8-10, 51, 53-54 moisture. See water Mollison, Bill, 14 monocotyledons, 19, 20, 22, 23 monocropping, 10, 67-68, 73, 81-83 mulching, 67, 75 mutations, breeding and, 41 mycorrhizal fungi, 66

naming of plants, 24-29 night length, 50 nitrates, 12 nitrogen, 55, 56, 66 nitrogen fixation, 22, 66, 70 nodules, 22

olericulture, 5 orchards, 5 orchids, 39

organic gardening, 55-56, 74-75 organic matter, 10, 52 organic produce, 12-15 ovaries, 18-19, 25 oxygen, 56, 70

parenchyma cells, 39-40 parthenocarpic fruits, 25, 42 pathogens, 65, 66-67 perennial plants, 22, 75-76, 92 permaculture, 14 pesticide drift, 81

pests, 69-74

pheromone traps, 85-86

phloem, 19

phosphorus, 55, 56

photoperiod, 50-51

photosynthesis, 19, 48, 49

phyllosphere, 69-73

pigments, 24, 50

pomology, 5

ponds, 94

post-harvest handling, 89 potassium, 54-56 potatoes, 41, 81, 82 predators, 73 pretreatments, 33-34 propagation, 32-36, 36-39, 39-44 pruning, 7, 77 Pseudomonas, 67

rain. See water raised beds, 96, 97 resins, 22

retaining walls, 100 rhizomes, 38 rhizosphere, 64-69 ripening, 88-89 rock phosphate, 55 Rodale, J.I., 14 roots, 38, 41, 57-59 rot, gray, 75, 76 rototillers, 96

salts, 54 sandy soils, 51

seeds, 18-19, 32-36, 84 selfers, 34 shade cloth, 49, 86 silica, 53

smother crops, 69

soaker hoses, 57-59

solstice, 50-51

soluble salts, 53-54

somatic embryos, 40

species names, 26

spores, 18, 59-60

staggered planting, 72

Steiner, Ralph, 13

sticky cards, 85

stolons, 38

Streptomyces, 66

sunshine. See light

Sustainable Agriculture and Research

Education (SARE), 15 sustainable horticulture, 15

taproots, 40

tenderness, 35

terraces, 101

terrariums, 106

texture, 51

thinning, 75

tillage, 10, 12

tilling, 96

tilth, 51

tissue culture, 39-40 trace elements, 52-53 tracheophytes, 18-19 transgenic plants, 14, 39, 42-44

transpiration, 56, 59 transplantation, 40-41 transposable elements, 44 trap crops, 72 trichome hairs, 22 turgor pressure, 56

United States National Arboretum, 36,

varieties, 26-27 vascular system, 18-21 vegetables, 5, 26-27 ventilation, 86 vermiculite, 85 vernalization, 32-33 viticulture, 5 Von Liebig, Justus, 8

wavelength, 50

wildflowers, 52

wind, 34

windbreaks, 95, 98 wine, 5

wood ashes, 54-55

xeric plants, 59 X-rays, 41 xylem, 19

yields, 10

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