Springer Nature is making SARS-CoV-2 and COVID-19 research free. View research | View latest news | Sign up for updates

Effect of harvest seasons on the incidence of seed-borne mycoflora of three Amaranthus cultivars

  • 45 Accesses

  • 1 Citations


Fifteen fungal species were found to be associated with seeds of three cultivars ofAmaranthus cruentus L. There was a seasonal variability in the frequency of isolation, distribution and quantity of these seed-borne fungi among cultivars. The wetness, high temperature and air humidity that accompanied harvests of the first and second seasons greatly increased the number and amount of seed-borne fungi. Least number and mean percentage seed infection were recorded for NHAc100 while NHAc30 and NHAc33 carried highest percentage inoculum of these pathogens. The seed testa of all cultivars was found to harbour the highest number and amount of some of these pathogens also in the second season. These seed-borne fungi,Choanephora cucurbitarum, Rhizoctonia solani andPythium aphanidermatum were highly pathogenic on seedlings of NHAc33 and NHAc30. Five of these seed-borne mycoflora have not been recorded onAmaranthus in Nigeria.

This is a preview of subscription content, log in to check access.


  1. 1.

    Harwood RR. The present and future status of Amaranth. Proc 2nd Amaranth. Emmas: Rodale Press, 1980.

  2. 2.

    FAO. Traditional food plants. Food and nutrition paper, No. 42. Rome, 1988.

  3. 3.

    Anon. Amaranth: Modern prospects for an ancient crop. Washington, DC: National Academy Press, 1984.

  4. 4.

    Prasad SS, Sinha BB. Occurrence ofCurvularia specifera (Bainier) Boedijn,Helminthosporium speciferum (Bainier) Nicot onCelosia cristata L. Curr Sci 1963; 32: 517–18.

  5. 5.

    Bisht RA, Mathur RS. Occurrence of two strains of Jute mosaic virus in Utter Pradesh. Curr Sci 1964; 33: 434–435.

  6. 6.

    Vir D, Gaur A. Efficacy of fungicides, XI: Seed disinfection in relation toRhizoctonia bataticola on okra seeds. Pesticides 1970; 4: 25–26.

  7. 7.

    Joaquim M. Seed-borne mycoflora of Nigerian local vegetables and their importance in disease development. [Dissertation]. University of Ibadan, Nigeria, 1976: 240 pp.

  8. 8.

    Sharma AD, Tnakur V, Munjal RL. Seed mycoflora ofAmaranthus caudatus, its pathology and control. Indian Phytopath 1980; 33: 242–244.

  9. 9.

    Anon. Annual Report: National Horticultural Research Institute, Ibadan, Nigeria, 1983: 101 p.

  10. 10.

    ISTA. International Seed Testing Association: Proc Int Seed Testing Assoc 1966; 31: 107–14.

  11. 11.

    Barnett HL, Hunter, B. Illustrated genera of imperfect fungi, 3rd ed. Minneapolis: Burgress, 1972: 241 p.

  12. 12.

    Adebanjo A. An inflorescence disease ofAmaranthus associated withChoanephora cucurbitarum. J Phytopathol 1989; 128: 146–152.

  13. 13.

    Commonwealth Mycological Institute (CMI). Description of pathogenic fungi and bacteria, No. 36, 1964: 26 p.

  14. 14.

    Venkatakrishniah NS. Blight ofAmaranthus paniculatus L. caused byAlternaria. Phytopathology 1952; 42: 668–669.

  15. 15.

    Deighton FC. Mycological work. Ann Rep Agric Dept Sierra-Leone 1931; 28–31.

  16. 16.

    Bialoskorski N, Kimati H. Damping off due toPythium sp. inAmaranthus spp. seed beds. Revist de Agr Braz 1982; 57: 145–146.

  17. 17.

    Sharples A. Division of mycology Annual Report for 1928. Malayan Agric J 1929; 17: 294–303.

  18. 18.

    Christensen CM, Kaufmann HH. Microflora in storage of cereal grain and their products. St Paul, MN: Association of Cereal Growers, 1974.

Download references

Author information

Correspondence to A. Adebanjo.

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Adebanjo, A., Ikotun, T. Effect of harvest seasons on the incidence of seed-borne mycoflora of three Amaranthus cultivars. Mycopathologia 128, 25–32 (1994). https://doi.org/10.1007/BF01104275

Download citation

Key words

  • Amaranthus
  • Harvest seasons
  • Mycoflora
  • Seed-borne