biology investigatory project about symptoms of nutrient deficiency in plants
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AIM:
TO STUDY ESSENTIALITY
OF MINERALS AND DEFICIENCY
SYMPTOMS OF ESSENTIAL MINERALS ON
PLANT GROWTH.
REQUIREMENTS:CULTURE SOLUTIONS, GRAM OR MAIZE SEEDLINGS,
STERILISED BOTTLES, WEIGHING BALANCE.
THEORY:PLANT REQUIRE MINERALS FOR NORMAL GROWTH
AND DEVELOPMENT.MINERALS WHICH ARE NEEDED IN LARGE
QUANTITY ARE CALLED MACRONUTRIENTS. FOR
EXAMPLES, C, H, O, N, S, P, K, Ca, Mg AND Fe.
MINERALS WHICH ARE NEEDED IN SMALL
QUANTITY ARE CALLED MICRONUTRIENTS. FOR
EXAMPLES, M, Z, B, C! AND M".HYDROPONICS# SOIL LESS CULTURES# TO RAISE
THE PLANTS IN SOLUTION CULTURES WITHOUT
USING SOIL.
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HYDROPONICS IS USEFUL$
%a& IN AREAS WITH THIN, FERTILE ANDDRY SOILS
%'& TO FIND OUT THE ESSENTIALITY ANDDEFICIENCY SYMPTOMS OF VARIOUS
MINERALS.
CRITERIA FOR ESSENTIALITY OF AN ELEMENT
IS$
%a& IT IS NECESSARY FOR GROWTH ANDDEVELOPMENT AND IT IS DIRECTLY INVOLVED
IN PLANT METABOLISM.
%'& IT CANNOT BE REPLACED BY ANY OTHER
ELEMENT.
%(& DEFICIENCY OF THE ELEMENT PRODUCES
DEFICIENCY SYMPTOMS. DEFICIENCYSYMPTOMS OR HUNGER SIGNS INCLUDE
CHLOROSIS, STUNTED GROWTH, NECROSIS,
PREMATURE LEAF FALL, MALFORMED
LEAVES.
ESSENTIALITY OF MINERALS CAN BEDETERMINED BY GROWING PLANTS IN$
%a& KNOP)S AND SACH)S CULTURE SOLUTION
WHICH CONTAIN ESSENTIAL ELEMENT SALTS
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IN SPECIFIC RATIO DISSOLVED IN DISTILLED
WATER.
%'& SAND CULTURE, *.e. , WELL WASHED,
HEATED PURE QUARTZ SAND, MIXED WITHCULTURE SOLUTION CONTAINING SPECIFIC
SALTS.
PROCEDURE:
+.PREPARE THE SACH)S CULTURE SOLUTION BY
DISSOLVING THE FOLLOWING IN +-
WATER.
NORMAL
SOLUTION
/N
SOLUTION
/Ca
SOLUTION
/Fe
SOLUTION
/C
SOLUTION
KNO0/ +g //////// +g +g +gCALCIUM
PHOSPHATE/.1g
.1g /////// .1g .1g
MAGNESIUM
SULPHATE/.1g
.1g .1g .1g .1g
CALCIUMSULPHATE/
.21g
.21g ///////// .21g .21g
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SODIUMCHLORIDE/
.21g
.21g .21g .21g ////////
FERROUSSULPHATE/.+g
.+g .+g /////// .+g
2.GROW FEW GRAM SEEDS TILL THEY BECOME
SEEDLINGS.
0.TAKE 1 STERILISED CONTAINERS A, B, C, D, E.
FILL CONTAINER A WITH NORMAL CULTURE
SOLUTION, B WITH %/N& SOLUTION, C WITH %/Ca& SOLUTION, D WITH %/Fe& SOLUTION, E WITH
%/C& SOLUTION. COVER THEM WITH SPLIT
CORK LID.
3.PUT ONE SEEDLING IN EACH BOTTLE THROUGH
SPLIT CORK AND PROVIDE NORMAL LIGHT,
TEMPERATURE AND OXYGEN TO LET THEMGROW.
1.RECORD YOUR OBSERVATIONS AGTER SOME
INTERVALS OF DAYS.
OBSERVATIONS: SEEDLINGS
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RESULT AND
DISCUSSION+.BOTTLE A SHOWS NORMAL SEEDLING
GROWTH.
2.BOTTLE B SEEDLING SHOWS DEFICIENCY
SYMPTOMS FOR NITROGEN LIKE CHLOROSIS
STARTING FROM OLDER LEAVES, DTUNTEDGROWTH.
0.BOTTLE C SEEDLING SHOWS DEFICIENCY
SYMPTOMS FOR CALCIUM LIKE STUNTED
GROWTH OF SEEDLING, NECROSIS AND
CURLING OF LEAVES.
3.BOTTLE D SEEDLING SHOW DEFICIENCYSYMPTOMS FOR IRON LIKE INTERVIENAL
CHLOROSIS AND REDUCED GROWTH.
1.BOTTLE E SEEDLING SHOWS DEFICIENCY
SYMPTOMS FOR CHLORINE *.e. , LEAF WILTING,
CHLOROSIS AND NECROSIS9 SWOLLEN ROOT
TIPS.
BIBLIOGRAPHY
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WWW.WIKIPEDIA.ORG
WWW.GOOGLE.COM
TOGETHER WITH BIOLOGY LAB MANUAL
BIOLOGYIOLOGYINVESTIGATORYNV TIGATORY
PROJECTROJ CT
MADE BYD Vardhan Raj
XII Scinc
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