Effect of seed size on germination,vigour, growth and yield in maize(ZeamaysL.) genotypes

Simple item page
dc.contributor.advisorLAWRENCE, M.
dc.contributor.authorRAVINDER RAJ, A.
dc.date.accessioned2018-06-04T08:29:59Z
dc.date.available2018-06-04T08:29:59Z
dc.date.issued1997
dc.description.abstractA fi eldexperimenttostudy“Effectofseedsizeongermination,vigour,growth and yieldinmaize(ZeamaysL.)genotypes”wasconductedattheAgriculturalCollege Farm Rajendranagar during rabi1995-96. Thelay outwasarandomizedblockdesignwith three replications.Therewereeighteentreatmentswhichincludedafactorialcombination of threemaizehybridsDHM 105, DHM 107 andDHM109with six seedsizegradesviz., 6.40,6.75,7.00,7.50and8.00mmsizeandunsortedseed. The results showedthat the vegetativegrowthofthethreemaizehybridswasnot influencedbythedifferentseedsizes.ThetwohybridsDHM107andDHM109flowered earlierthanDHM105.Butnoneofthemshowedasignificantchangeinthedaysneededto flower initiation or 50percentsilkingduetodifferentseedsizes. Thelargesizeseedof8.00mmwassignificantlysuperiortotheunsortedseedof DHM105andDHM109inincreasingthelengthofthecobandtotalnumberofseedsper cob.SignificantimprovementincobgirthwasrecordedbylargesizeseedonlyinDHM 105.Thecobweightandthetestweightofthethreehybridswerenotinfluencedbythe seedsizegradation.Theseedyieldperplantduetounsortedseedwasonparwiththeyield duetodifferentgrades.Howeverthemeanseedyieldperplantwassignificantlylessfrom thecropsownwithundersizedseedof6.40thanthelargegradeof8.0mm. Theyieldperhectareduetotheunsorted seedofDHM105andDHM107was onparwiththeyieldduetolargeseedsizegradesof7.00,7.50and8.00mm.Theyielddue tounsortedseed(4850kgha“)ofDHM109wasalsoonparwiththeseedgradesof7.00 and7.50mmbutsignificantlylessthantheyieldrealised(5099kgha")fromthelarge gradeof8.0mm. Thequalityoftheunsortedseedintermsofgerminationpercent,rootandshoot lengthwasonparwiththelargestseedgradeof8.00mminthethreehybrids.Theseed obtainedfromthecropsownwithseedof6.40or6.75mmgradesinDHM107andDHM 109and6.40mminDHM 105hadsignificantlylowgerminationthanthosefromthe unsortedorthe8.00mmseedgrades.Thevigourindexoftheunsortedseedwasonpar withthelargestgradeof8.00mm.Therecoverypercentageoftheseedwith8.00mm gradewasonlyabout12%whilethosewith7.00mmandmoregradationwas98%.Itis inferredthatmaizeseedlotsofDHMIOS,DHM107andDHMIO9withmorethan250g testweightneednoseedsizegradationandminimisetheexpectedlossofpreciousseedfor furthersowing.en_US
dc.identifier.citationD5198en_US
dc.identifier.urihttp://krishikosh.egranth.ac.in/handle/1/5810048917
dc.keywordsEffect seed size germination,vigour, growth yield maize(ZeamaysL.) genotypesen_US
dc.language.isoenen_US
dc.pages61pen_US
dc.publisherProfessor Jayashankar Telangana State Agricultural Universityen_US
dc.subGenetics and Plant Breedingen_US
dc.subjectnullen_US
dc.themeGenetics and Plant Breedingen_US
dc.these.typeM.Scen_US
dc.titleEffect of seed size on germination,vigour, growth and yield in maize(ZeamaysL.) genotypesen_US
dc.typeThesisen_US
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
D5198.pdf
Size:
2.48 MB
Format:
Adobe Portable Document Format
Description:
Effect of seed size on germination,vigour, growth and yield in maize(ZeamaysL.) genotypes
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Theses