Short description of the varieties
“Karlovo” variety
“Karlovo” variety was created by Vasil Staykov and Blagovesta Chingova through an individual selection from a local population. It was recognised in 1967.
The variety forms tall, large, rounded, highly productive plants. The leaves are larger, grey-green and in the dormancy period become silver grey. It produces 618 peduncles per plant on average, with a cylindrical, not very compact spike, with an average length of 8 cm with six whorls with on average of 12 flowers per whorl. The corolla and the calyx are coloured dark purple. “Karlovo” variety is characterised by later and slower blooming. The average productivity of the variety is 690 kg/daa of flowers, 1.18% essential oil or 7.8 kg/daa with 25-30% linalyl acetate and good quality. Suitable for harvesting of dry flowers.
“Hemus” variety
“Hemus” variety was created by the authors Vasil Staykov, Blagovesta Chingova, Hristo Chorbadzhiyski and Penka Kenderova in 1973, using the method of individual selection and clonal selection.
The variety has rounded, compact plants. The leaves are fresh green of colour. It produces 450-500 erect peduncles, with strong, not that long stalks – 15 cm on average. The spike is compact, cylindrical, in fascicles. The corolla is light violet blue and the calyx is dark violet. At the age of normal flowering, an average of 560 kg of flowers are harvested per decare. The essential oil content is 1.76% on average, or up to 10 kg of essential oil with 30-35% linalyl acetate harvested per decare. The variety is very suitable for mechanised farming and harvesting.
“Drujba” variety
“Drujba” variety was created by the authors Blagovesta Chingova, Vasil Staykov, Lyudmila Romanenko and Penka Kenderova in 1982, via intervarietal hybridisation (clone No. 59-0 x variety “Stepnaya”) combined with a selection in the first seed generation.
The plants form strong, wide, rounded tufts.
The leaves are linear-lanceolate, fresh green, long and narrow. The peduncles are erect to inclined with strong stalks, with average length of 25 cm. The spike is cylindrical, with 6 whorls on average. The plants produce 500 peduncles on average. The growth of additional peduncles is also typical. The corolla is light to pale violet-blue, and the base of the calyx is grey-green. “Drujba” variety is with relative period of flowering. The average productivity is 637 kg/daa of flowers, 1.67% essential oil or 10.7 kg/daa with 30-35% linalyl acetate and very good quality. Due to its stronger growth, the “Drujba” variety is more sensitive to drought and unfavourable conditions.
“Sevtopolis” variety
“Sevtopolis” variety was created in 1987 by Blagovesta Chingova, Penka Kenderova, Raycho Tsvetkov and Radka Topuzlieva, using the chemical mutagenesis method in combination with clonal selection.
Plants form rounded tufts with compact habitus. The inflorescences are upright, 20 cm long on average, and the spikes – 7 cm on average. The number of peduncles is 600 on average. The corolla is light violet and the calyx is green at the base and grey-violet towards the corolla. “Sevtopolis” belongs to the late-flowering varieties. The yield of inflorescences in the fourth-fifth year after planting is on average 625 kg/daa, and of essential oil – 15 kg/daa with excellent quality. The content of essential oil in the raw material is 2.64% on average.
“Yubileina” variety
“Yubileina” variety was created in 1988 by Blagovesta Chingova, Penka Kenderova, Raycho Tsvetkov and Radka Topuzlieva by the hybridisation method from the hybrid No. 643x and an individual selection in the first seed generation from open pollination of the hybrid.
The plants are rounded, erect, with compact habitus. The inflorescences are upright, with a length of about 22 cm. The colour of calyx is half green, half purple, and the corolla is dark purple. The leaves are silvery. In terms of rate of growth and flowering, the “Yubileina” variety is with relative period of flowering. The yield of flowers is 554 kg/daa, the essential oil content – 2.86%, and the essential oil yield is 15.7 kg/daa with a good quality and ester-linalyl acetate content of 25-30%.
“Raya” variety
“Raya” variety was created in 1994 by Raycho Tsvetkov via the radiation mutagenesis method and clonal selection.
The plants are erect, compact, with a hemispherical shape. The peduncles are 500 per plant on average, and are 22 cm long. The old leaves are dark green with a smooth surface and slightly curled downwards. The colouring of the corolla is light purple, and of the calyx – pale purple towards the corolla to light green towards the base. It is a high-yielding variety, with an average yield of 670 kg/daa with essential oil content of 2.58% or 17.2 kg/daa.
“Hebar” variety
“Hebar” variety was created in 1994 by Raycho Tsvetkov via the chemical mutagenesis method and clonal selection.
The plants of this variety are compact, erect, hemispherical. The peduncles are 533 on average per plant, and 20 cm long on average. The leaves are smooth, with a dark green colour. The corolla colour is dark violet, and the calyx is light violet at the base to dark violet towards the corolla. The yield of flowers is average 750 kg/daa, the essential oil content – 2.22%, and the essential oil yield per decare is 16.8 kg, with a good quality.
“Teres” variety
“Teres” variety was created in the Institute of Roses, Essential and Medical Cultures (IREMC) – Kazanlak, by Stanko Stanev via an individual selection in F1-seed population obtained at open pollination of the “Sevtopolis” variety. It belongs to the type of true, narrow-leaved, lavender – D.C. The variety was created in the period 2004-2019. It was recognised by the State Variety Commission in 2020. During the period of full flowering the plants are rounded, erect, with a compact habitus. The tufts reach an average height of 70 cm and a width of 115 cm towards the between rows. The inflorescences are upright with an average length of 22 cm. The length of the spike is 5-6 cm, with 5 whorls and 12-14 calyx in a whorl. The number of peduncles is 550-600 on average. The calyx is half green and half light violet, hairy, and the corolla is violet. The leaves are green, slightly hairy, long, narrow. In terms of rate of growth and flowering, the “Teres” variety is with late flowering. In the Kazanlak field, the yield of fresh inflorescences reaches 800 kg/daa, and of essential oil – up to 15 kg/daa. The main advantage of the “Teres” variety is the high content of linalyl acetate in the essential oil in the range of 39-43%. The “Teres” variety propagates vegetatively – by rooting cuttings.
“Zhaneta” variety
“Zhaneta” variety was created in the Institute of Roses, Essential and Medical Cultures (IREMC) – Kazanlak, by Stanko Stanev via an individual selection in F1-seed population obtained at open pollination of the “Yubileina” variety. It belongs to the type of true, narrow-leaved, lavender – D.C. The variety was created in the period 2004-2019. It was recognised by the State Variety Commission in 2020. During the period of full flowering, the plants are rounded, slightly inclined with strong tuft growth. The plants reach an average height of 65 cm and a width of 115 cm towards the between rows. The inflorescences are with an average length of 22 cm. The spike is compact, irregularly shaped, 6 cm long, with 5-6 whorls and 11 to 16 calyx in a whorl. The number of peduncles is 500-600 on average. The calyx is 2/3 light violet and 1/3 grey-green due to the strong hairy, and the corolla is light violet. The leaves are green, slightly hairy, long, narrow. In terms of rate of growth and flowering, the “Zhaneta” variety is characterised by early flowering. In the Kazanlak field, the yield of fresh inflorescences reaches 700 kg/daa, and of essential oil – up to 17 kg/daa. The main advantage of the “Zhaneta” variety is the high quality of the essential oil. The “Zhaneta” variety propagates vegetatively – by rooting cuttings.
“Deya” variety
“Deya” variety (selection number Д11) was created in the Institute of Roses, Essential and Medical Cultures (IREMC) – Kazanlak, by Stanko Stanev via an individual selection in F1-seed population obtained at open pollination of the “Yubileina” variety. It belongs to the type of true, narrow-leaved, lavender – D.C. The variety was created in the period 2004-2019. It was recognised by the State Variety Commission in 2020. During the period of full flowering the plants are rounded with an erect habitus. The tufts reach an average height of 67 cm and a width of 107 cm towards the between rows. The inflorescences are with an average length of 29 cm. The spike is 6 cm long, with 6 whorls and 12 calyx in a whorl. The number of peduncles is 500 on average. The calyx is dark violet, and grey-green only at the base. The corolla is dark with a red-violet colouration. The leaves are green, slightly hairy, long, narrow. In terms of rate of growth and flowering, the “Deya” variety is characterised by late flowering. In the Kazanlak field, the yield of fresh inflorescences reaches 630 kg/daa, and of essential oil – up to 15 kg/daa. The “Deya” variety is characterised by a high essential oil content – about 3% in the fresh inflorescences and a linalyl acetate content of 40-44%. The “Deya” variety propagates vegetatively – by rooting cuttings.
