Pošlji prispevek (e-pošta) Grafična analiza stabilnosti pridelka novih izboljšanih genotipov leče (Lens culinaris Medik.) z uporabo neparametrične statistike
Povzetek
Stabilnost pridelka je zaradi velikih letnih nihanj, še posebej v aridnih in semi-aridnih območjih, zanimiva lastnost v današnjih žlahtniteljskih programih pri leči (Lens culinaris Medik.). Pri 18 genotipih leče smo s 14 neparametričnimi statističnimi testi, ki vrednotijo stabilnost pridelka, preučevali glavne vplive genotipa in interakcije med genotipom in okoljem (GO) na pridelek zrnja. Rezultati petih neparametričnih testov GO interakcij, ter parametrične ANOVA so pokazali, da so se genotipi značilno razlikovali v pridelku zrnja tako v povezanjih kot prekrižanih interakcijah. Gleda na večino neparametričnih testov stabilnosti pridelka so se genotipi G5, G6, G8 in G18 izkazali kot najbolj stabilni. Primerjava povprečnih pridelkov in stabilnosti je pokazala, da so genotipi G2, G11, G14 in G5, G16 ter G18 najbolj primerni. Nobeden izmed neparametričnih testov stabilnosti ni koreliral s povprečnim pridelkom, kar kaže na njihov statičen značaj. Naši rezultati potrjujejo, da rangiranje genotipov po povprečnem pridelku za vsake okoljske razmere posebej omogoča uporabo rezultatov neparametričnih testov. Na koncu so bili genotipi G2 (FLIP 92-12L), G11 (Gachsaran) in G14 (ILL 6206) prepoznani kot najbolj stabilni, z velikim povprečnim pridelkom in priporočeni za komercialno uporabo. Takšni izsledki bi lahko bili uporabljeni za ponazoritev napovedovanj in resnejših priporočil kot tudi pomoč pri določanju stabilnost pridelave leče in drugih poljščin.
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DOI: http://dx.doi.org/10.14720/aas.2014.103.1.12
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