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List elements required by plants,Classify elements required by
plants based on the amount needed,Relate the effects of
macronutrient deficiency in plants.Explain the function of each
macronutrient in plants,State the function of micronutrients &
effects of micronutrient deficiency in plants.
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Plants require raw materials such as w,c. And mineral nutrients
to form organic substancesM Are essential chemical elements
required by plants to achieve optimal growth and
development.Minerals that are needed by plants can be divided into
m and m..Macronutrients are elements needed in l. Quantities. These
macronutrients are .(N),...(P),(K),(Ca),.(Mg) and .(S).(C),(H) and
..(O) are macronutrients that can be easily obtained from.. In the
atmosphere and. from the soil.The remaining mineral elements are
obtained in the form of inorganic ions from the ..Micronutrients
are elements needed in s. amounts. These micronutrients are
.(B),..(Cu), .(Fe),.(Mn), Molybdenum(Mo) and(Zn).
ICRONUTRIENTSATERO2INERAL
NUTRIENTSACRONUTRIENTSARGENITROGENPHOSPHORUSPOTASSIUMCALCIUMMAGNESIUMSULPHURCARBONOXYGENHYDROGENSOILWATERMALLCO2BORONCOPPERFERUMMAGANESEZINC
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8. To determine which elements are required for normal growth ,
plant seedlings are grown in a complete culture solution, also
known as . 9. Content of . Solution are :
10. Macronutrients and micronutrients are involved in the
synthesis of chemical substances essential for the healthy growth
of plants11. They are also required for the various m... Processes
which take place in plants.12. The absence of one or more of these
nutrients can lead to m...d... in plants13. The symptoms of
minerals deficiency depend on the function of the mineral in the
plants
ETABLOLICINERALIFIENCYKNOPSKNOPS SOLUTION
Calcium nitrate (Ca(NO3)2)0.8gPotassium nitrate0.2gPotassium
dihydrogen phosphate (KH2PO4)0.2gMagnesium
sulphate(MgSO4)0.2gFerum(III) phosphate(FePO4)traceDistilled
water1000cm3
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MacronutrientsFunctionsEffects of deficiency1. NitrogenA major
component of proteins, nucleic acid, chlorophyll and enzymes for
photosynthesis and resipration.Important for rapid growth of stem
and leafIncreases seed and fruit yieldsStunted growthChlorosis in
which the synthesis ofChlorophyll is inhibited, results in pale
yellow bases2. PhosphorusSynthesis of nucleic acid, ATP and
phospholipids of plasma membrane.Acts as a coenzyme in
photosynthesis and respiration.Poor root growthFormation of
dull,dark green leavesRed or purple spots on old leaves.
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Macronutrients FunctionsEffects of deficiency3. PotassiumProtein
synthesisCarbhohydrate metabolism A cofactor for many
enzymesMaintains turgidity in plants.Reduced protein
synthesisYellow-edged leavesPremature death of plants4. CalciumA
major constituent of the middle lamella of cell walls.Formation of
spindle fibres during the cell division.Stunded growth Leaves
become distorted and cuppedAreas between leaf veins become
yellow.
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MacronutrientsFunctionsEffects of deficiency5. MagnesiumThe main
structural component of the pigment chlorophyllActivates many plant
enzymes.Involve in carbohydrate metabolismYellowing of the regions
between the veins of mature leaves.Red spots on leaf
surfaces.Leaves become cupped.Areas between leaf veins become
yellow.6. SulphurA component of certain amino acids.A constituent
of vitamin B and some coenzymes.General yellowing of the affected
leaves or the entire plant.
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ERISTEMSHLOROPHYLLTUNTED
MicronutrientsFunctionsEffects of deficiencyBoronAids in calcium
lon uptake by roots and translocation of sugarInvolved in
carbohydrate metabolismAids in the germination of pollen
grainRequired for normal mitotic cell division in the mActs as a
cofactor for c...... synthesisDeath of terminal budsAbnormal plant
growthLeaves become thick, curled and brittleCopperAn important
component of enzymesInvolved in nitrogen metabolism and
photosynthesisImportant for reproductive growth and flower
formation Death of tips of young shoots Brown spots appear on
terminal leaves Plants are s..
FerumA cofactor in the synthesis of chlorophyllEssential for
young growing plants* Yellowing of young leaves
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MicronutrientsFunctionsEffects of deficiencyManganeseAn
activator of enzymes in photosynthesis , respiration and also
nitrogen metabolismA network of green veins on a light green
backgroundBrown or grey spots between the veinsMolybdenumInvolved
in nitrogen fixationReduction of nitrates during protein
synthesisChlorosis in the areas between the veins of mature
leavesPale green leavesReduction in crop yeildsZincFormation of
leavesSynthesis of auxinActs as a cofactor in carbohydrate
metabolismMottled leaves with irregular areas of chlorosisRetarded
growth
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