Effect of Blended NPSZn fertilizer and Variety on quality of Carrot (Daucus Carota L.) Seed at Hossana, Southern Ethiopia

Paper Details

Research Paper 28/07/2022
Views (561) Download (121)

Effect of Blended NPSZn fertilizer and Variety on quality of Carrot (Daucus Carota L.) Seed at Hossana, Southern Ethiopia

Tamirat Lefamo
Int. J. Biosci.21( 1), 138-147, July 2022.
Certificate: IJB 2022 [Generate Certificate]


Carrot is an important vegetable crop in Ethiopia. However, the quality of the crop is low mainly due to low soil fertility and a lack of improved varieties resulting in low yield and low quality of carrot seed. Therefore, this study was conducted in 2019 to assess the effect of blended NPSZn fertilizer and to evaluate high seed-yielding carrot varieties at Hossana, southern Ethiopia. The field experiment consisted of five levels of blended NPSZn (0, 100, 125,150 and 175 kg ha-1) fertilizer and three Carrot Varieties (Hramaya I, Nantes and Royal Chantenay). A complete randomized design with four replications was used for the laboratory experiment, whereas a randomized complete block design in factorial arrangement with three replications was used for the field experiment. The result of the analysis revealed that the main factors (blended NPSZn fertilizer and varieties) had a highly significant (P<0.01) effect on seed purity, thousand seed weight, seed germination, speed of seed germination and seedling vigor index.The highest(1.72 g and 1.55 g ) thousand seed weight from primary and secondary umbel’s seed, respectively, germination of seed (94.88%), speed of germination(24.58%), vigor index I (81.83) and vigor index II (7.8) were obtained from the application of 175 kg ha-1 blended NPSZn fertilizer. The variety Haramaya I had shown a significantly higher speed of germination as compared to Nantes and Royal Chantenay. In conclusion, the result of the study showed that application of 175 kg blended nitrogen, phosphorus, sulphur and Zinc (NPSZn) ha-1 fertilizer with Haramaya I carrot variety enhanced the quality of carrot seed.


Abdul B, Anderson J. 1973. Relationship between decarboxylation of glutamic acid and vigor in soybean seed.Crop Science 13, 227–232. http://dx.doi.org/10.2135/CROPSCI1973.0011183X001300020023X

Ahmad N, Tanki M. 1997. Effect of planting date, spacing and steckling size on growth and seed yield of carrot (Daucus carota L.), Hayana. Journal of Horticultural Science 26, 274–276.

AOSA. (Association of Official Seed Analyst). 2002.  Rules for testing seeds. Journal of Seed Technology 16( 3), 1-113. http://www.jstor.org/stable/23432704.

CSA. 2017. Agricultural Sample Survey 2017.Volume I, Report on area and production of major crops (private peasant holdings, Meher season), Statistical bulletin 532, Addis Ababa, Ethiopia.

Dawit A, Abera D, Lemma D, Chimdo A. 2004. Domestic vegetable seed production and marketing. Research report No 57, EARO.Addis Ababa.

Fiala F. 1987. Hand book of vigour testing methods. ISTA, Publication.

Genstat. 2012. Release 15.2. Lawes Agricultural 425 Trusts, Rothamstead Experimental Station, Harpenden, Clarendon 426 Press, London.

Hampton JG, Tekrony DM. 1995.Hand book of vigor test methods. International Seed Testing, Association, Zurich, Switzerland.

Hampton JG. 1999. Producing quality seed: the problem of seed vigour.Proceedings of the Seed Symposium: current research on seeds in New Zealand, Palmerston North, 53-61.

Hart JM, Butler MD. 2003. Seed carrot above ground biomass and nutrient accumulation, 2001/2002 growing seed.

ISTA. (International Seed Testing Association) 1993. Hand book for seedling evaluation. International.

ISTA. (International Seed Testing Association). 2008. International rules for seed testing.

ISTA. (International Seed Testing Association). 1996. International Rules for Seed Testing. Seed Science and Technology, 1B288, Zurich, Switzerland.

Jacobsohn R, Globerson D. 1980. Daucus carota (carrot) seed quality: I. Effects of seed size on germination, emergence and plant growth under subtropical conditions. II. The importance of the primary umbel in carrot-seed production.P 637-646. In:Hebblethwaite PD. (Editor.), Seed Production. London: Butterworth.

Lemma D, Seifu G, Edward H. 1994.  Seed production studies on vegetables. In: Proceedings of the 2nd National Horticultural Workshop of Ethiopia.

Maguire JD. 1962. Speed of germination, an aid in selection and evaluation for seedling emergence and vigor. Crop science 2, 176–177.

Powell AA. 1988. Seed vigor and field establishment. Advances in Research and Technology of Seeds 16, 419–426.

Rao VK,  Maurya CP. 1998. Response of carrot on NPK fertlizer” ISSHS. Acta Horticulture 369.

Raynal C. 1994. Nitrogen Nutrition of Carrots. Proceedings of the Third Congress of the European Society for Agronomy, Padova, Italy, 616-617.

Robert EH. 1992. Storage environment and control of viability. P 14–18. In: Viability of seeds. Roberts EH. (Edditor.), Chapman and Hall Limited, London. http://dx.doi.org/10.1007/978-94-009-5685-8_2

Rodet G, Torre-Grossa JP, Vaissiere B. 1992.Pollination as a factor in carrot seed quality. Horticultural Abstracts.

Rubatzky VE, Quiros CF, Simon PW. 1999. Carr ots and related vegetable Umbelliferae. CABI Publ., New York.

Sadhu MK. 1993. Root Crops In Vegetable Crops (2nd eddition.). Editors. T. K. Bose, M. G. Som and J. Kabir.NayaProkash, Calcutta, India. p 470-578.

Salo T. 1999. Nitrogen uptake by cabbage, carrot and onion. P 57–59. In:Hägg M., (editor.), Agricultural foodquality II: Quality management of fruits and vegetables. Royal Society of Chemistry, Cambridge,UK http://dx.doi.org/10.1533/9781845698140.3.57.

Salunkhe DK, Kadam DD. 1998. Handbook of Vegetable Science and Technology. Marcel Dekker, Inc. New York.

Simon PW. 1992. Genetic improvement of vegetable carotene content. Biotechnology and Nutrition, Third International Symphosium., 293–300. http://dx.doi.org/10.1016/B978-0-7506-9259-5.50020-0

Warncke DD. 1996. Soil and Plant Tissue Testing for Nitrogen Management in Carrots.Communication in Soil Sciences Anal. 27, 597-605. http://dx.doi.org/10.1080/00103629609369580

Wassu M, Tewodros B, Nigussie D,Kebede W, Bekele A, Mulatua H. 2014. Registration of Haramaya I Carrot (Daucus carota L.) Variety.East African Journal of Sciences 8(1), 65–70.

Yang Q, Ye W, Deng X, Cao H, Zhang Y, Xu K. 2005. Seed germination ecophysiology of Mikaniamicrantha H.B.K. Botanical Bulletin of Academy of Science 46, 293-299.

Yawalker KS. 1992. Vegetable Crops of India (4th eddition.). Agri Horticultural Publishing House, Nagpur, India. p 68.