Pošlji prispevek (e-pošta) Povezava med fenološkimi značilnostmi pri različnih genotipih sabljastega triplata (Trigonella foenum-graecum L.)
Povzetek
Pomanjkanje informacij o povezanosti med fenološkimi lastnostmi je eden izmed problemov pri žlahtnenju sabljastega triplata. Za preučitev neposrednih in posrednih povezav med pridelkom in fenološkimi lastnostmi pri različnih genotipih je bil na območju Jamma, južno od upravnega območja Wollo, države Amhara, Etiopija, v glavnem deževnem delu sezone 2018/19 izveden poljski poskus. 62 genotipov sabljastega triplata, zbranih po vsej državi, je bilo ob standardnih in lokalnih preverbah ovrednoteno v nepopolnem bločnem poskusu. Pridelek semena na ploskev je bil statistično značilno pozitivno povezan s pridelkom biomase (r = 0,5) in žetvenim indeksom (r = 0,6***) na ravni genotipa. Pridelek semena je bil statistično značilno pozitivno povezan z žetvenim indeksom (r = 0,6***) in v šibki negativni korelaciji (r = -0,01) s pridelkom biomase na ravni fenotipov. Analiza neposrednih in posrednih vplivov nabora neodvisnih spremenljivk na odvisno spremenljivko je pokazala, da so biomasa (0,951), žetveni indeks (0,283) in dolžina stroka (-0,163) prispevali največji pozitivni in negativni neposredni učinek na pridelek zrnja na fenotipski ravni. Na genotipski ravni sta imela pridelek biomase na hektar (0,816) in žetveni indeks (0,930) močan, pozitivni neposredni učinek, višina rastlin je imela šibek neposredni negativni učinek (-0,004) na pridelek.
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DOI: http://dx.doi.org/10.14720/aas.2020.115.1.1300
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