The Influence of Container and Frigo Planting Material on the Vegetative Growth and Fertility of the Variety Clery

The quality of planting material plays a decisive role in the profitability of strawberry production. Of all categories of seedlings in commercial strawberry plantations in Bosnia and Herzegovina, frigo seedlings predominate. The goal of the research is to obtain relevant data on the reaction to external environmental conditions, vegetative growth, and reproductive potential of both types of seedlings by comparing frigo and container planting material. By researching the vegetative and generative growth of strawberries of the Clery variety with two different types of seedlings, it was concluded that green container seedlings are vegetatively more developed compared to frigo seedlings. The container seedlings produced a higher number of buds by 14.2% and leaf mass by 17.5% and entered the resting phase more readily. The percentage of unrooted container seedlings after planting is only 1.1% compared to frigo seedlings, where this percentage is 11.3%, due to the fact that container seedlings have less stress after transplanting, which is the result of the substrate around the roots of the seedling. On the other hand, green container seedlings form a higher percentage of stolons, which additionally burdens the work engagement when removing them in intensive strawberry production. Finally, the container seedlings had a higher and better yield, which amounted to an average of 10.34 grams per fruit, while the average fruit weight of the frigo seedlings was 9.84 grams. In the end, this difference in weight gave 80.29 grams more yield per plant in favor of container seedlings.