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Soil Mineral Stresses - Approaches to Crop Improvement (Paperback, Softcover reprint of the original 1st ed. 1994)
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Soil Mineral Stresses - Approaches to Crop Improvement (Paperback, Softcover reprint of the original 1st ed. 1994)
Series: Monographs on Theoretical and Applied Genetics, 21
Expected to ship within 10 - 15 working days
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Thisbookisconcernedwiththewaysinwhichcropsmightbedevelopedfor
soilsthatare,atthepresent,agriculturallyunproductivebecauseofexcesses
and/ordeficienciesofcertainminerals.
Wehaveconcentratedonsoils,rather
thanonenvironmentalconditionsthatlimitproductivity,sincetherehavebeen
anumberofrecenttextsdealingwithtopicssuchasdroughtandtemperature.
Theaimisthatthoseworkingtoderivecropsforgrowthonthese"problem"
soilsshouldbeawareofthemanydiverseavenuesthatareavailable. These
comefromthedisciplinesofplantbreeding,geneticsandphysiology,andthe
interfacesthataredevelopingbetweenthem.
Thebackground,therequirementstofeedtheprojectedincreaseinhuman
population,issetoutintheintroductorychapter.
Thenextfivechaptersthen
dealwiththeapproachestocropimprovement:themeritsofaconventional
breedingprogramme,theimportanceofphysiologicalcharactersinmaking
selections,theuseofinvitrotechniques,ofcytogenetics,andthevalueof
developingnativeplantsintocropsintheirownright.
Althoughsalinityisoften
usedasanexample,reflectingtheresearchinterestsofmanyoftheauthors,the
methodsandapproachesdescribedhavemuchwiderapplicability. Twochap-
tersarethenconcernedmorespecificallywithbreedingfortolerancetoother
metaltoxicitiesandwithdeficienciesandtoxicitiesofmicronutrients.
Finally,in
theconcludingchapter,wesummariseandfindcommongroundbetweenthe
differentapproachesandpointsofview. Brighton,April1994 ANTHONYR.
YEO TIMOTHY J. FLOWERS Contents Chapter1
Introduction:WorldPopulationandAgriculturalProductivity T. 1.
Flowers 1. 1 HowManyPeopleAreThere? . 1 1. 2
AgriculturalRequirements. . 2 1. 2. 1 FoodRequirements...2 1. 2. 2
FoodSupply...4 1. 3 Population-CarryingCapacity...5 1. 4
HowMuchLandIsThere? . 6 1. 5 IncreasingFoodProduction . 7
References...9 Chapter2
ConventionalPlantBreedingforTolerancetoProblemSoils C. N.
ChaubeyandD. Senadhira 2. 1 ScreeningTechniques . 11 2. 2
VariabilityinToleranceforSoilStresses . 14 Rice . 15 2. 2. 1 2. 3
GeneticsofToleranceforSoilStresses...16 19 2. 3. 1
GeneLocationandLinkages...CorrelatedChanges...20 2. 3. 2 2. 4
Crop-Improvement . 21 2. 4. 1 Introduction...21 2. 4. 2
PureLineandMassSelection...21 2. 4. 3 HybridisationandSelection. 23
2. 4. 3. 1 PedigreeMethod...23 2. 4. 3. 2 BulkMethod...23
BackcrossBreeding...2. 4. 3. 3 26 2. 4. 3. 4
RecurrentSelection...26 2. 4. 3. 5
RapidGenerationAdvanceProcedures...27 2. 4. 4 MutationBreeding...28
2. 4. 5 PolyploidBreeding. 28 2. 4. 6 HeterosisBreeding. 29 2. 5
Summary...29 References...29 VIII Contents Chapter3
PhysiologicalCriteriainScreeningandBreeding A. R. Yeo 3. 1
Introduction...37 3. 2 ReasonsfortheUseofPhysiologicalSelection .
38 3. 2. 1 TheComplexityofTolerance...38 3. 2. 2
ImportingTolerancefromWildRelatives . 39 3. 2. 3
MeasuringStressTolerance . 40 3. 2. 4
InteractionBetweenEnvironmentalStresses...42 3. 2. 5
LimitationstotheUseofYieldasaSelectionCriterion...42 3. 3 Salinity
. 43 3. 3. 1 BasicProblems...43 SaltExclusion...44 3. 3. 2 3. 3. 3
ConditionsRequiringOsmoticAdjustment. . 45 3. 3. 4
CharacteristicsNeededinSalt-TolerantPlants . 46 3. 3. 4. 1
ControlofSaltUptake...
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