Naslov
The effects of light regime and substrate on flower productivity and leaf mineral composition in two gerbera cultivars

Autori
Mustapić-Karlić, Jadranka ; Teklić, Tihana ; Parađiković, Nada ; Vinković, Tomislav ; Lisjak, Miroslav ; Špoljarević, Marija

Izvornik
Journal of plant nutrition (0190-4167) 35 (2012), 11; 1671-1682

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
gerbera ; Gerbera jamesonii L. ; foliar analyses ; macronutrients ; light regime

Sažetak
This research evaluates the influence of light regime and substrate composition on the flower productivity and leaf macronutrient content of two gerbera cultivars (‘Ruby Red’ and ‘Vino’) grown in a greenhouse. A special emphasis was given to macro-element ratios in gerbera leaf. The results confirm positive influence of supplemental lighting on flower yield in both gerbera cultivars. Also, mixed substrate (coco fiber + rice husks) resulted with higher flower yield. Cultivar ‘Vino’ showed better productivity and significantly lower concentration of nitrogen (N), potassium (K), and magnesium (Mg) as compared to ‘Ruby Red’. The total flower productivity per plant correlated with some of the tested macronutrients in gerbera leaf (N, K, Mg) only in natural light conditions. Among all calculated leaf nutrient ratios, only P/Mg was significantly and positively correlated to flower yield, based on data from both light variants.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija)

POVEZANOST RADA