Callistephus chinensis (L.) Nes. fusariosis resistance depending on the flower cluster colouration intensity

UDC 635.939.982.631.528

Callistephus chinensis (L.) Nes. fusariosis (Fusarium) resistance depending on the flower cluster colouration intensity / Rudnyk-Ivashchenko O.I., Shevel L.O. // Sadivnytstvo (Horticulture). 2017. 72. P. 93-100. Refs.: 10. in Ukrainian.

As a result of the three-years researches the degree of the Callistephus chinensis plants affection by fusariosis was determined depending on the flower cluster colouration and year weather conditions. Besides, the authors showed the development of the different cultivars illness in the Kyiv region. The investigated crop resistance to the mentioned disease appeared to be a genetic sign and not to depend on the flower cluster colouration. For instance, among 30 cvs of the experimental collection with the rosy colouration of flower clusters during the explorations period the highest resistance level (83.3%) was marked in 2015 under different colourations where as the corresponding affection indication under the white colouration (6,7%) was fixed in 2013.

Key words: Callistephus chinensis, weather conditions, signs, genetic dependence, affection degree, resistance.
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