雜交稻青兩優(yōu)916產(chǎn)量構(gòu)成因素分析

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中圖分類號(hào)：S511 文獻(xiàn)標(biāo)識(shí)碼：A DOI編碼：10.3969/j.issn.1006—6500.2025.05.005

nalysisofYieldCompositionFactorsofHybridRiceQingliangyou916

CHANG Xingyuan，F(xiàn)U Ding，HUO Erwei， SHENGuanghui， ZHANG Kaixuan，LUYun

XinyangAcademyof Agricultural Sciences，Xinyang，Henan 464Ooo，China）

Abstract：Inordertoexplorethehigh-yieldpotentialandwaysofQingliangyou916，thisstudyanalyzedtheyieldcomponentsand yieldfQingliangou916，ncudingteolegowthrod，lanthight，umberofgainsperpanicle，ectivepanics，berof filledgrais，gateOaineigtndclengthoghelaioalisathalsd analysis method.The results showed that the variation coeficient of agronomic traits ranged from 4.47% to 15.2% ，among which the largest variation was effective spike （15.2 % ）and the number of grains per spike（ 12.41% ）， indicating that effective spike and grain numberperspikeweresusceptibletoenvironmentalfactorsandcutivationmeasures，correlationanalysisshowedthatearlengthwas significantlypositivelycoelatedwithgainnumberandseedsetingratendsignificantlyngativelycorrelatedwiththousandgain weight，indicatingthatecesvelylongearlengthcouldafectthousandgainweightandtusieldPathanalysisshowedthatthe direct efetsofholegrowthperiod，efectivespike，spikelengthgrainnumberperspikeandseedsetingrateonyieldforation weregreaterthanindirecteects，hilethedirecteectsofplantheightandOOgrainweightonyieldformationweresmaeran indirecteecs;Tegeycoelationegeeinicatedatteumberofgainsperar，etiegrowthprodandplanthighthad asignificantimpactontheyieldofQingliangyou916Inconclusion，thegrainnumberperspikehasthegreatestefectontheyieldof Qingliangyou916，andincreasinggrainnumberperspikeisanimportantwaytoobtain highyield.The1O-grain weighthasa greater direct effect on yield，and increasing 1 OoO-grain weight can effectively increase yield.

Keywords：hybridrice; Qingliangyou 916; yield; correlationanalysis;pathanalysis;greyrelationalanalysis

水稻作為全球半數(shù)以上人口的主糧來源，其生產(chǎn)穩(wěn)定性直接關(guān)系到糧食安全體系的構(gòu)建1-3]。（剩余4774字）