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Agricultural botany

lecture 1,2,3

Photoperiodism response of plant to change in day length
phytochrome c chemical which changes in response to daylength
endogenous internal environment of plant
etiolation absence of light
High levels of uv light dwarfs plants
PAR phyotosynthetically active radiation
WUE Water use efficiency
LEDs advantages include no heat produced, last longer, cheaper, any spectrum of light can be produced
Turgor pressor pressure of water inside in cells
viscosity of water is affected by temperature as temperature drops so does viscosity. consequences of this are leaf scorch in plants as water is lost faster than it is replaced
systematics the study of diversification of living organisms and their relatioships
classification refers to how plants are related
taxonomy the arrangement of plants into groups according to similarities
phylogeny how plants have evolved and developed
spermatophyta are divided into gymnosperms and angiosperms
angiosperms are divided into monocots and dicots
Poaceae grasses
Fabaceae legumes
Liliaceae bulbs
Asteraceae daisy like flowers
Solanaceae nightshade family( potato, tomato)
Brassicaceae Brassicas
Rosaceae Rose
Apiaceae Parsley
Linnaeus developed the system for naming organisms
Created by: MKHealy



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