INFLUENCE OF HYBRIDS ON FORMATION OF YIELD-FORMING ELEMENTS OF SUNFLOWER (HELIANTHUS ANNUUS L.)

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February 2012, vol. 1, Special issue
pages: 1003-1010
Article type: Biotechnology of Biotechnology
Abstract: Field polyfactorial trial was carried out on experimental base Center of the Plant Biology and Ecology in Nitra Dolná Malanta in years 2009 – 2010. In the experiment was studied the impact of temperature and precipitation conditions of experimental years 2009 and 2010 on creation of yield – forming elements (number of plants per unit area, number of heads per unit area, average of head, weight of head, WTA – weight of thousand achenes), yield and fat content of sunflower. Within biological material were used hybrids NK Ferti and NK Simfoni. Experimental years 2009 and 2010 were in term of weather conditions very different. From total evaluation of impact of experimental year and biological material on creation and forming of yield - forming elements flows that more favorable was year 2009 for temperatures and precipitation. Higher yields and fat content were found in year 2010. Within the yield – forming creation, quantity and quality was more preferable the hybrid NK Ferti.
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