Ovrednotenje odpornosti genotipov tritikale (xTriticosecale Wittm. ex A. Camus) na sušo v primerjavi z genotipi krušne pšenice in ječmena

Seyyed Hamid Reza RAMAZANI, Ali IZANLOO

Povzetek


V raziskavi so bili preučevani učinki sušnega stresa na morfološke lastnosti in lastnosti pridelka šestih različnih genotipov tritikale v primerjavi s pšenico in ječmenom. Poskus je bil izveden na Agricultural College of Sarayan, University of Birjand, v rastni sezoni 2016-2017. Poskus je bil popolni naključni bločni poskus z deljenkami, s sušnim stresom na glavnih ploskvah in osmimi genotipi žit na podploskvah s tremi ponovitvami. Rezulati analize variance in analize primerjave poprečij so pokazali značilne negativne učinke sušnega stresa na pridelek zrnja in biološki pridelek pri vseh preučevanih genotipih. Med preučevanimi genotipi tritikale, pšenice in ječmena je bila značilna razlika v pridelku zrnja v razmerah sušnega stresa pri 1 % verjetnosti. Med vsemi preučevanimi genotipi se je na osnovi skoraj vseh indeksov tolerance na sušo sorta tritikale ‘Pazh’ izkaza kot najbolj na sušo odporen genotip. Največja značilna korelacija s pridelkom zrnja je bila povezana z biološkim pridelkom, žetvenim indeksom, razmerjem klas/poganjek, višino rastlin in pridelkom slame. GGE biplot analiza genotipov, ki je temeljila na njihovih Yp in Ys je pokazala, da imajo genotipi triticale Pazh, Jualino, in Sanabad večjo povezavo z glavno komponento Ys kot ET-89-11 linija pšenice in genotipi ječmena, kar kaže njihovo večjo tolerance na sušni stress.

Ključne besede


biplot; korelacija; sušni stres; indeks tolerance; Triticale

Celotno besedilo:

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Literatura


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DOI: http://dx.doi.org/10.14720/aas.2019.113.2.15

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