杂交稻青两优916产量构成因素分析

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中图分类号：S511 文献标识码：A DOI编码：10.3969/j.issn.1006—6500.2025.05.005

nalysisofYieldCompositionFactorsofHybridRiceQingliangyou916

CHANG Xingyuan，FU 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

水稻作为全球半数以上人口的主粮来源，其生产稳定性直接关系到粮食安全体系的构建1-3]。（剩余4774字）