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Kovatcheva, N
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N. Kovatcheva
,
Zheljazkov, V. D.
, and
Astatkie, T.
,
“
Productivity, oil content, composition, and bioactivity of oil-bearing rose accessions
”
,
HortScience
, vol. 46, no. 5, 2011.
N. Kovatcheva
,
Zheljazkov, V. D.
, and
Astatkie, T.
,
“
Productivity, oil content, composition, and bioactivity of oil-bearing rose accessions
”
,
HortScience
, vol. 46, pp. 710-714, 2011.
M
V. D. Zheljazkov
,
Jeliazkova, E. A.
,
Kovatcheva, N.
, and
Dzhurmanski, A.
,
“
Metal uptake by medicinal plant species grown in soils contaminated by a smelter
”
,
Environ. Ex. Bot.
, vol. 64, pp. 207-216, 2008.
I
A. Dobreya
,
Kovatcheva, N.
,
Astatkie, T.
, and
Zheljazkov, V. D.
,
“
Improvement of essential oil yield of oil-bearing rose (Rosa damascena Mill.) due to surfactant and maceration
”
,
Industrial Crops and Products
, vol. 34, pp. 1649-1651, 2011.
F
A. Margina
,
Zheljazkov, V. D.
, and
Kovatcheva, N.
,
“
Fungus diseases on essential oil and medicinal plants.
”
,
Higher Institute of Agriculture – Plovdiv, Scientific Works
, vol. 4, pp. 395-362, 1995.
E
V. D. Zheljazkov
,
Astatkie, T.
,
Shiwakoti, S.
,
Poudyal, S.
,
Horgan, T.
,
Kovatcheva, N.
, and
Dobreva, A.
,
“
Essential Oil Yield and Composition of Garden Sage as a Function of Different Steam Distillation Times
”
,
HortScience
, vol. 49, no. 6, 2014.
A
V. D. Zheljazkov
,
Yankuloff, Y.
,
Raev, R. Tsevtkov
,
Stanev, S.
,
Margina, A.
, and
Kovatcheva, N.
,
“
Achievements in breeding on medicinal and aromatic plants in Bulgaria
”
,
Beitrage zur Zuchtungsforschung
, vol. 2, pp. 142-145, 1996.