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PSS 138 Exam 1 Questions & Answers 2024/2025 $8.99   Add to cart

Exam (elaborations)

PSS 138 Exam 1 Questions & Answers 2024/2025

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PSS 138 Exam 1 Questions & Answers 2024/2025 When did plant propagation begin? - ANSWERSwith agriculture 7000-10,000 ya where did agricultural practices begin? - ANSWERS-Northeast Africa (Egypt), Middle East (Turkey & Iraq), China, Mexico, Central and South America (Peru) - Manchu pichu ...

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  • August 14, 2024
  • 13
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • PSS 138
  • PSS 138
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PSS 138 Exam 1 Questions & Answers
2024/2025

When did plant propagation begin? - ANSWERSwith agriculture 7000-10,000 ya



where did agricultural practices begin? - ANSWERS-Northeast Africa (Egypt), Middle East (Turkey & Iraq),
China, Mexico, Central and South America (Peru) - Manchu pichu



Agriculture includes - ANSWERS-Plant selection (usefulness)

-Plant breeding (for specific traits)

-Plant propagation (selected plants chosen to maintain their traits)

-Crop production (growing under controlled conditions for maximum yield)

-Food technology (preserving plant products as a source of food)



What is controlled during cultivation? - ANSWERSenvironmental factors, edaphic factors, biotic factors,
genetic variation



Environmental factors (sometimes)

controlled during cultivation - ANSWERS•Water (irrigation/humidity)

•Light

•Wind

•Atmospheric gases



edaphic factors controlled during cultivation. - ANSWERS•Soil/rooting medium

•Soil water

•Soil gases



biotic factors controlled during cultivation. - ANSWERS•Insects

, •Worms/Nematodes

•Arachnids

•Bacteria

•Fungi



genetic variation controlled during cultivation. - ANSWERS•Create variation through hybridizing

•Prevent variation through clonal propagation

Hybrids clonally propagated by tissue culture or division

Or hybrids produced by seed



Human Soceities involved - ANSWERSgreek and romans, theophrastus in books, pliny the elder



earliest plants domesticated - ANSWERS•Seeds

-Cereals = wheat, barley, rice

-Legumes = beans and peas

•Cuttings

-Grapes

-Figs

-Olives (Xylella fastidiosa)

-Potatoes

-Yams

-Banana

-Pineapple

•Grafting

-Apple - Eurasia

-Pear - Eurasia

-Peach - China

-Apricot - China

-Citrus - China

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