12. Use of growth regulators and saprophytic fungi Trichoderma viride Pers ex Fr. to improve the health status of the soil in pepper field

Author: Olga Georgieva, Natalia Karadzhova

13. Changes in the vitality, lipid peroxidation and hydrogen peroxyde content of maize /Zea mays L./ seedlings during controlled accelerated ageing

Radoslav Chipilski, Albena Pencheva

14. Application of biological products at cultivation of garden pea Pisum sativum L.

Author: Olga Georgieva, Natalia Karadzhova, Slavka Kalapchieva

15. Effect of led lighting on the growth of raspberry (Rubus idaeus L.) plants in vitro

Author: Lilyana Nacheva, Nataliya Dimitrova, Lyubka Koleva-Valkova, Ivan Tarakanov, Andon Vassilev