Abstract
To study the effects of bio and chemical fertilizers on seed yield and some of the yield components of dill (Anethum graveolens L.), a pot experiment was performed at the Research Station of Faculty of Agriculture, Islamic Azad University, Tabriz Branch, Iran, in 2010. This experiment was conducted factorially based on completely randomized design with three replications. Studied factors consisted of dill landrace populations (Mobarakeh Esfahan and Hamadan), mycorrhiza strains (Glomus interadices and Glomus mosseae and a non-inoculated one as control), nitrogen fixing biofertilizers (nitroxin, super nitro plus and a non-inoculated one as control) and chemical fertilizers containing nitrogen in urea form and phosphorus in triple super phosphate form (0, 50 and 100% of the recommended dose). Studied traits were number of umbels and seeds per plant, 1000 seed weight and seed yield. The results showed that mycorrhiza application increased the number of seeds per plant and seed yield nearly 32 and 32.5% more than control, respectively. Application of nitrogen fixing biofertilizers also influenced all characteristics studied, significantly. All the characteristics under study except 1000 seed weight were affected by chemical fertilizers. In addition, results revealed that interaction of factors had significant effect on more of the traits under study.
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