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The effect of various substrates in the production of basil seedlings was studied. Peat, originating from Gaj in South Banat, was the predominant component of the studied substrates. Peat was improved by adding different ratios of manure and water soluble mineral fertiliser. The gained result show that the best quality basil seedlings in the container production were obtained with the application of substrates in which the share of manure was 30 vol%. Among different dosages of used water soluble fertilizers, the 1.3 g L-1 dose had the best effect on the quality of basil seedlings. The obtained results are significant for the application and improvement of local peat as the main component in the production of seedlings of medicinal, aromatic and seasoning herbs in Serbia. . Ispitivan je uticaj različitih supstrata u proizvodnji rasada bosiljka. Dominantna komponenta ispitivanih supstrata je domaći treset, koji je oplemenjen dodavanjem stajnjaka i vodorastvorljivog mineralnog đubriva u različitim odnosima. Rasad bosiljka je proizveden u kontejnerima po speedling sistemu. Istraživanja su pokazala da se najbolji kvalitet rasada bosiljka u kontejnerskoj proizvodnji dobija na supstratima u kojima je udeo stajnjaka iznosio 30 vol%. Od upotrebljenih različitih doza vodorastvorljivog đubriva, doza od 1,3 g/l je ostvarila nabolji efekat na kvalitet rasada bosiljka. Dobijeni rezultati istraživanja imaju značaj u primeni i promociji domaćeg treseta kao glavne komponente supstrata namenjenih proizvodnji rasada lekovitog, aromatičnog i začinskog bilja u Srbiji. .

The chlorophyll content in tomato leaves directly indicates the level of photosynthetic ability and also shows genetic potential of a certain genotype. The present study encompasses the experimental crosses among homozygous inbreeds. Two male and five female components were used in the experiment. Ten newly developed hybrids in F1 generation and seven parental inbreeds were analyzed for the chlorophyll content in leaves. The obtained average values ranged from 47.90 to 63.44 universal SPAD units. Some of experimental tomato hybrids had significantly higher value of the chlorophyll content in leaves than their parents, indicating that heterosis was expressed in these combinations. Sadržaj hlorofila u listu paradajza direktno ukazuje na nivo fotosintetske aktivnosti, a samim tim i na potencijal određenog genotipa. U ovom radu su vršena eksperimentalna ukrštanja homozigotnih linija, pri čemu su dva genotipa bila očinske, a drugih pet majčinske komponente. Dobijenih deset hibrida u F1 generaciji i sedam roditeljskih linija analizirani su na sadržaj hlorofila u listu. Izmerene su prosečne vrednosti hlorofila u rasponu od 47,90 do 63,44 univerzalnih SPAD jedinica. Neki od eksperimentalnih hibrida paradajza imali su signifikantno višu vrednost sadržaja hlorofila u listu od oba svoja roditelja, što ukazuje na ispoljavanje heterozisa u tim kombinacijama.