College of Agricultural Sciences

V. D. Zheljazkov, Vick, B. A., Baldwin, B. S., Buehring, N., Coker, C., Astatkie, T., and Johnson, B., “Oil Productivity and Composition of Sunflower as a function of Hybrid and Planting Date”, Industrial Crops and Products, vol. 33, pp. 537-543, 2011.

V. D. Zheljazkov and Warman, P. R., “Comparison of Three Digestion Methods For the Recovery of 17 Plant Essential Nutrients And Trace Elements from Six Composts”, Compost Science & Utilization, vol. 10, no. 3, pp. 197 - 203, 2002.

V. D. Zheljazkov, Cantrell, C. L., Astatkie, T., and Jeliazkova, E. A., “Mentha canadensis L., a subtropical plant, can withstand first few fall frosts when grown in northern climate”, Industrial Crops and Products, vol. 49, pp. 521 - 525, 2013.

V. D. Zheljazkov, Yankov, B., and Topalov, V., “Effect of Mechanical and Chemical Weed Control on the Growth, Development and Productivity of Mentha piperita and M. arvensis var. piperascens Grown for Planting Material”, Journal of Essential Oil Research, vol. 8, no. 2, pp. 171 - 176, 1996.

V. D. Zheljazkov, Cantrell, C. L., Donega, M. Augusto, Astatkie, T., and Heidel, B., “Podophyllotoxin Concentration in Junipers in the Big Horn Mountains in Wyoming”, HortScience, vol. 47, no. 12, 2012.

V. D. Zheljazkov and Nielsen, N. E., “Growing Clary Sage (Salvia sclarea L.) in Heavy Metal Polluted Areas”, Acta Hort. , vol. 426, pp. 309-328, 1996.

V. D. Zheljazkov, Astatkie, T., Horgan, T., Schlegel, V., and Simonnet, X., “Distillation Time Effect on Essential Oil Yield, Composition, and Antioxidant Capacity of Sweet Sagewort”, HortScience, vol. 48, pp. 1288-1292, 2013.

V. D. Zheljazkov, Pickett, K. M., Caldwell, C. D., Pincock, J. A., Roberts, J. C., and Mapplebeck, L., “Cultivar and sowing date effects on seed yield and oil composition of coriander in Atlantic Canada”, Industrial Crops and Products, vol. 28, no. 1, pp. 88 - 94, 2008.

V. D. Zheljazkov, Vick, B. A., Buehring, N., and Astatkie, T., “Oil Content and Saturated Fatty Acids in Sunflower (Helianthus annus L.) as a Function of Planting Date, N Rate and Hybrid”, Agron J, vol. 101, pp. 1003-1011, 2009.

V. D. Zheljazkov, Bowes, K. M., Caldwell, C. D., Pincock, J. A., Roberts, J. C., and Mapplebeck, L., “Cultivar and sowing date effects on seed yield and oil composition of coriander in Atlantic Canada”, Industrial Crops and Products, vol. 28, pp. 88-94, 2008.

V. D. Zheljazkov and Nielsen, N. E., “GROWING CLARY SAGE (SALVIA SCLAREA L.) IN HEAVY METAL - POLLUTED AREAS”, Acta Horticulturae, no. 426, pp. 309 - 328, 1996.

V. D. Zheljazkov, Astatkie, T., and Schlegel, V., “Postharvest Biology and Technology-Distillation Time Changes Oregano Essential Oil Yields and Composition but Not the Antioxidant or Antimicrobial Activities”, Hortscience, vol. 47, no. 6, 2012.

V. D. Zheljazkov, “Productivity and quality of coriander in heavy metal polluted areas”, Higher Institute of Agriculture – Plovdiv, Scientific Works, vol. 4, pp. 363-373, 1995.

V. D. Zheljazkov, Astatkie, T., Jeliazkova, E. A., and Schlegel, V., “Distillation time alters essential oil yield, composition, and antioxidant activity of male Juniperus Scopulorum trees”, Journal of Oleo Science, vol. 61, pp. 537-546, 2012.

V. D. Zheljazkov, Patterson, K., Parsons, K. J., and Sampson, G., “Tolerance of bare-root ornamental perennials to selected herbicides”, Canadian Journal of Plant Science, vol. 87, no. 2, pp. 439 - 442, 2007.

V. D. Zheljazkov, Craker, L. E., and Xing, B., “Effects of Cd, Pb, and Cu on growth and essential oil contents in dill, peppermint, and basil”, Environ. Ex. Bot. , vol. 58, pp. 9-16, 2006.

V. D. Zheljazkov, Faire, P., and Craker, L. E., “Study of the effect of highly heavy metal polluted on metal uptake and distribution in plants from genera Artemisia, Draccocphalum, Inula, Ruta and Symphtum”, 1996.

V. D. Zheljazkov, Cantrell, C. L., Astatkie, T., and Hristov, A., “Yield, Content, and Composition of Peppermint and Spearmints as a Function of Harvesting Time and Drying”, Journal of Agricultural and Food Chemistry, vol. 58, no. 21, pp. 11400 - 11407, 2010.

V. D. Zheljazkov, Astatkie, T., and Hristov, A. N., “Lavender and hyssop productivity, oil content, and bioactivity as a function of harvest time and drying”, Industrial Crops and Products, vol. 36, pp. 222-228, 2012.

V. D. Zheljazkov and Warman, P. R., “Phytoavailability and fractionation of copper, manganese, and zinc in soil following application of two composts to four crops”, Environmental Pollution, vol. 131, no. 2, pp. 187 - 195, 2004.

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.

V. D. Zheljazkov, Astatkie, T., Jeliazkova, E. A., Tatman, A. O., and Schlegel, V., “Distillation time alters essential oil yield, composition and antioxidant activity of female Juniperus scopulorum trees”, Journal of Essential Oil Research, vol. 25, no. 1, pp. 62 - 69, 2013.

V. D. Zheljazkov, Yankov, B., and Topalov, V., “Effect of mechanical and chemical weed control on the growth, development, and productivity of Mentha piperita and Mentha arvensis var. piperascens grown for planting material”, J. Essent. Oil Res., vol. 8, pp. 171-176, 1996.

V. D. Zheljazkov, Astatkie, T., and Jeliazkova, E. A., “Drying and Shade Effects on Spearmint Oil Yields and Composition ”, HortScience, vol. 49, pp. 306-310, 2014.

V. D. Zheljazkov, Jeliazkova, E. A., Kovacheva, N., and Dzhurmanski, A., “Metal uptake by medicinal plant species grown in soils contaminated by a smelter”, Environmental and Experimental Botany, vol. 64, no. 3, pp. 207 - 216, 2008.