The effect of harvest time on the winter savory (Satureja montana L.) yield

Abstract

Winter savory, known as Rtanj Tea in folk medicine, is a perennial plant of the family Lamiaceae most frequently used as an antiseptic. An uncontrolled gathering has significantly threatened its natural habitats that resulted in introducing the legislative measures concurrent with its growing under controlled conditions. Our investigation of the effect of harvest time upon yield of winter savory was designed to gain a higher yield of this plant species per unit area. A five variant trial in four replications each, using a selected line of winter savory, was performed at the experimental field of Bački Petrovac (84 m elevation). Trial variants included different harvest times with mutual temporal distance of about 15 days. Two harvests were obtained with the first three variants. The plant height, leaf share, and yield of fresh herb, dry herb, and dry leaves were analysed. The fresh herb yield increased from the variant I to the variant III in which it showed the highest value (11.2 t ha-1), whereas a decrease was recorded in the variants IV and V. The dry leaves Yield was almost uniform (about 1.3 t ha-1) in all the harvests except for the variant III in which the highest yield was recorded (1.7 t ha-1). Obviously, the yield of winter savory depends, to a great extent, on the harvest time.

U cilju dobijanja višeg prinosa po jedinici površine bilo je potrebno ispitati kako vreme kosidbe utiče na prinos planinskog čubra. U Naučnom institutu za ratarstvo i povrtarstvo na oglednom polju u Bačkom Petrovcu postavljen je ogled sa selekcionisanom linijom planinskog čubra sa pet varijanti i četiri ponavljanja. Varijante su predstavljali rokovi kosidbe, gde je vremenski razmak između rokova iznosio približno 15 dana. Kod prve tri varijante postignuta su dva otkosa. Ispitivane su sledeće osobine: visina biljaka, udeo lista, prinos sirove herbe, prinos apsolutno suve herbe i prinos apsolutno suvog lista. Prinos sirove herbe je imao tendenciju porasta počev od prve do treće varijante koja je dala i najveći prinos od 11,2 t/ha, a idući prema petoj varijanti prinos je opadao. Prinos apsolutno suvog lista kod svih rokova kosidbe se kretao oko 1,3 t/ha sem kod treće varijante gde je bio najveći i iznosio je 1,7 t/ha. Navedeni rezultati pokazuju da prinos planinskog čubra u značajnoj meri zavisi od vremena kosidbe.