Connection between Nutrient Content and Resistance to Selected Pests Analyzed in <i>Brassicaceae</i> Hybrids
2021
Justyna Szwarc | Janetta Niemann | Jan Bocianowski | Monika Jakubus | Marek Mrówczyński
Rapeseed (<i>Brassica napus</i> L. ssp. <i>oleifera</i> Metzg) is attacked by a wide range of pests. Breeding of resistant cultivars is one of the best methods of protecting crops against insects, and non-cultivated species of <i>Brassicaceae</i> can be used as resistance donors. In this study, we investigated the relationship between nutrient content and resistance to two commonly occurring pests (<i>Delia radicum</i> and <i>Brevicoryne brassicae</i>) in 12 <i>Brassicaceae</i> hybrid combinations. The experiment was conducted at Poznań University of Life Sciences Experimental Station located in Dłoń. The assessment was carried out for three years (2017, 2018, and 2019) on randomly chosen individuals in two growth stages: vegetative stage and flowering stage. The resistance to <i>B. brassicae</i> and <i>D. radicum</i> was observed in all three years, however, macronutrient and micronutrient contents as well as total nitrogen, total sulfur, and sulfur sulfate were observed only in 2019. Statistically significant negative association between Ca and resistance to <i>B. brassicae</i> and <i>D. radicum</i> was discovered. Additionally, positive association between Cu and resistance to <i>B. brassicae</i> was observed. The importance of selected mineral elements in plant resistance is widely discussed.
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