Pošlji prispevek (e-pošta) Korelacijska in usmerjene multipla regresijska analiza pridelka in njegovih komponent nekaterih etiopskih akcesij boba (Vicia faba L.)
Povzetek
Poznavanje korelacije in usmerjene multiple regresijske analize omogoča žlahtniteljem posreden izbor za izboljšanje lastnosti kot je pridelek zrnja, na katerega vplivajo v naravi številni dejavniki. Namen te raziskave je bil izmeriti povezave med pridelkom in z njim povezanimi lastnostmi in določiti pomembne lastnosti za posreden izbor izboljšanja pridelka zrnja pri bobu. Enainosemdeset akcesij boba je bilo ovrednotenih v 9 × 9 nepopolnem bločnem poskusu na raziskovalnem polju Bahir Dar University, v območju Mecha, v deževni dobi pridelovalne sezone 2019. Rezultati korelacijske analize so odkrili, da je pridelek zrnja visoko značilno (p < 0.01) in pozitivno feno-in genotipsko povezan z višino rastlin, dolžino strokov, številom strokov na rastlino, številom poganjkov na rastlino, biomaso, maso 100-semen. Usmerjena multipla regresijska analiza je pokazala, da so bili večji neposredni pozitivni učinki na pridelek zrnja izraženi s pridelkom biomase in žetvenim indeksom na feno- in genotipski ravni. Na osnovi teh rezultatov bi se te lastnosti lahko uporabile kot posredni selekcijski kriteriji za za izboljšanje pridelka zrnja pri bobu.
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DOI: http://dx.doi.org/10.14720/aas.2023.119.1.291
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