UPORABNOST NEKATERIH LASTNOSTI CVETOV PRI VREDNOTENJU GENETSKE RAZNOLIKOSTI SEZAMA (Sesamum indicum L.)

Musibau Adewuyi Azeez, Modupe Bimpe Olowookere, David Adedayo Animasaun, Bashir Omolaran Bello

Povzetek


Zbirke sezamovih genotipov so bile ovrednotene po nekaterih kvantitativnih lastnostih cveta in nato podvržene različnim statističnim analizam. Rezultati so pokazali majhno variabilnost pri večini vključenih lastnosti, z zmerno raznolikostjo v dolžini cveta (2.03-3.27 cm), dolžini vratu pestiča (1.10-1.40 cm), dolžini glavice (2.33-2.98 cm) in v številu semen na glavico (38.67 – 57.67). Korelacijske raziskave so pokazale značilno (p < 0.01) pozitivno korelacijo med dolžino plodnice in dolžino cveta (r= 0.70) ter dolžino glavice in dolžino vratu pestiča (r= 0.77). Prvi dve glavni komponenti variabilnosti sta znašali 61.59 %, kjer je prva komponenta obsegala 34.13 % in druga 27.46 %. Dendrogram je razdelil 17 akcesij v dve glavni skupini (A in B). Skupina A je imela samo en klaster s petimi akcesijami, medtem, ko je skupina B obsegala tri klastre (klaster II, III in IV) s sedmimi, tremi in dvema akcesijama. Vsako od akcesij v navedenih klastrih bi lahko uporabili kot izhodiščno starševsko linijo pri hibridizaciji, s ciljem izboljšanja produktivnosti sezama v Nigeriji.

Ključne besede


Sesamum indicum; akcesije; multivariatna analiza; cvetne lastnosti; PCA; klastri; genetska raznolikost; dendrogram

Celotno besedilo:

PDF (English)

Literatura


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DOI: http://dx.doi.org/10.14720/aas.2017.109.1.06

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