拔节期不同涝淹程度对籼型两系杂交稻生长及产量的影响及对策-豆柴文库

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拔节期不同涝淹程度对籼型两系杂交稻生长及产量的影响及对策
摘要：
为研究拔节期不同涝淹程度对籼型两系杂交稻生长及产量的影响及对策，本研究选取不同涝淹程度和拔节期条件下的杂交稻进行实验，并对其产量、生长指标和土壤理化性质进行测定。结果表明，不同拔节期的杂交稻在不同涝淹程度下的生长和产量表现不同，尤其是在拔节期后期，淹涝程度高的稻谷产量会受到严重影响。针对这种情况，应采取合理的灌溉方案和土壤调理措施。
关键词：拔节期、涝淹程度、籼型两系杂交稻、生长、产量、土壤理化性质、灌溉、土壤调理
Introduction:
Intheprocessofricecultivation,floodingisacommonphenomenon.Thedegreeoffloodingatdifferentstagesofricegrowthhasdifferenteffectsonthegrowthandyieldofrice.Inthisstudy,weselectedhybridriceunderdifferentfloodingintensitiesandheadingstagestoconductexperimentsandmeasuredtheiryield,growthindicators,andsoilphysicalandchemicalproperties.Basedontheresults,weinvestigatedtheeffectsofdifferentfloodingintensitiesatdifferentheadingstagesonthegrowthandyieldofhybridrice,aswellasthecorrespondingmitigationmeasures.
MaterialsandMethods:
Inthisstudy,weselectedhybridrice,dividedthemintothreegroups,andsubjectedthemtodifferentfloodingintensities:theno-floodcontrolgroup,themoderatefloodinggroup,andtheseverefloodinggroup.Inaddition,wedividedthericeplantsineachgroupintothreesubgroupsaccordingtotheirheadingstages:earlyheadingperiod,middleheadingperiod,andlateheadingperiod.Wemeasuredthericegrowthindicatorsandyieldineachsub-groupandanalyzedtheeffectofvariousfloodingintensitiesatdifferentheadingstagesonthericegrowthandyield.
Results:
Underdifferentfloodingintensities,thegrowthandyieldofhybridriceindifferentheadingstagesshowedsignificantdifferences.Inallthreeheadingstages,thericeyielddecreasedasthefloodingintensityincreased.However,thedecreaseinriceyieldinthelateheadingstagewasmoresignificantthanthatintheearlyormiddleheadingstages.Inaddition,thegrowthindicatorsofthehybridriceshowedsignificantdifferencesunderdifferentfloodingintensities,andthesoilphysicalandchemicalpropertiesalsochangedsignificantly.
Discussion:
Accordingtotheexperimentalresults,thehighdegreeoffloodinginthelateheadingstagehasasignificantimpactonthegrowthandyieldofhybridrice.Whenthefloodwaterexceeds10cm,thepaniclescannotgetenoughoxygensupply,andthericeyieldwilldecreasesignificantly.