Екологічна стабільність гібридів капусти броколі

Abstract

L.M. Puzik, V.A. Bondarenko. Ecological stability of broccoli hybrids. Ecology studies make it possible to define the effect of abiotic and biotic factors of certain environment on genotype and to establish the degree of their influence on plant growth and development as well as the yield of broccoli. The accumulation of external changes reveal in the variability of certain quantitative and qualitative features - productivity, the quality of production, the ability to store, determined by the original form. The high sensitivity of certain varieties and hybrids to unfavourable growing conditions often narrows the area of their distribution in other environmental areas and limits their general distribution. The intense variety, a hybrid is such that under optimum growing conditions prevails each year by yields all studied ones. Plastic (capable to variability) are hybrids that by average productivity during the years of the study occupies the first place. The stable hybrid is the hybrid that during the years of research has the smallest difference between the maximum and minimum yield. Thus, the yield is a function of two components - the productivity and stability. The impact of weather conditions of growing season of broccoli hybrids on stability of crop productivity was evaluated by calculation of cabbage yield of the first and second harvests, head weight, component content of chemical composition, storage. It has been determined that among the studied hybrids of broccoli the stable and plastic by productivity is hybrid Ayronmen F1 (stability coefficient is 1.4), the most stable productivity is cabbage yield of the second harvest (stability coefficient is 0.5).

Пузік Л.М., Бондаренко В.А. Екологічна стабільність гібридів капусти броколі. Проведено дослідження впливу погодних умов і особливостей гібридів капусти броколі на її урожайність. Установлено, що серед досліджуваних гібридів капусти броколі більш стабільним і пластичним за урожайністю є Айронмен F1 (коефіцієнт стабільності 1,4), найбільш стабільною виявилась урожайність капусти другого збору (коефіцієнт стабільності 0,5).