Indian Journal of Agricultural Research

  • Chief EditorT. Mohapatra

  • Print ISSN 0367-8245

  • Online ISSN 0976-058X

  • NAAS Rating 5.60

  • SJR 0.293

Frequency :
Bi-monthly (February, April, June, August, October and December)
Indexing Services :
BIOSIS Preview, ISI Citation Index, Biological Abstracts, Elsevier (Scopus and Embase), AGRICOLA, Google Scholar, CrossRef, CAB Abstracting Journals, Chemical Abstracts, Indian Science Abstracts, EBSCO Indexing Services, Index Copernicus
Indian Journal of Agricultural Research, volume 52 issue 4 (august 2018) : 439-443

Study on diversity of foliar trichomes in thirty accessions of okra (Abelmoschus esculentus (L.) Moench.)

K. Krishnakumar, P. Rajeena, V. Veena
Cite article:- Krishnakumar K., Rajeena P., Veena V. (2018). Study on diversity of foliar trichomes in thirty accessions of okra (Abelmoschus esculentus (L.) Moench.). Indian Journal of Agricultural Research. 52(4): 439-443. doi: 10.18805/IJARe.A-4857.
Foliar epidermal features of thirty accessions of okra (Abelmoschus esculentus)  were studied with the aim of using these features to identify them in the vegetative stage during hybridization experiments. Quantitative and qualitative micromorphological characters, distribution of both glandular and eglandular foliar trichomes in thirty accessions of okra were characterized. An indumentum of variable  density and texture formed  of wide variety of glandular and eglandular trichomes on both surfaces of leaves. Among the thirty accessions of  okra studied, both glandular  and eglandular foliar trichomes showed considerable diversity in their qualitative and quantitative micro morphological characters. Diversity of these epidermal appendages is separated into eight main types. Eglandular conical type trichomes were the most abundant on both leaf surfaces of all the accessions examined. Accessions like  Pusasawani and  IC-117251 could be demarked due to the occurance of stellate trichomes. Forked type was delimited to accessions like Arkaanamika, IC-99746, IC-111514  and  IC-111517. These variations in morphology and distribution of the foliar trichomes emerged as an important tool to identify the diverse accessions of okra during breeding programme.
  1. Abdulrahaman, A. A. and Oladele, F. A. (2010) Leaf epidermal features as diagnostic characters in Hibiscus rosa-sinensis, H. sabdariffa and Abelmoschus esculentus (Malvaceae). IJABR 2: 88-95.
  2. Abdulrahaman, A. A. and Oladele, F. A. (2005) Stomata, trichomes and epidermal cells as diagnostic features in six species of genus Ocimum L.(Lamiaceae). Nigerian J. Bot. 18 : 214 - 223.
  3. Adedeji, O. and Dloh, H. C. (2004) Comparative foliar anatomy of ten species in the genus Hibiscus L. in Nigeria. New Bot. 31: 147-180. 
  4. Adegbite, A. K. (1995) Leaf epidermal studies in three Nigerian species of Aspilla (Heliantheae-Asteraceae) and Two hybrids. Nigerian J. Bot. 18 : 25 - 33.
  5. Anitha, K.R, and Nandihalli, B.S. (2009) Evaluation of some Okra hybrids against leaf hopper and aphid. Karnataka J. Agric. Sci. 22 : 718- 719 
  6. Bayer, C., and Kubitzki, K. (2003) Malvaceae.In: Kubitzki, K. and Bayer, C. (eds.), Flowering plants, Dicityledons; Malvales, Capparales, and Non-betalain Caryophyllales, pp: 225-311. Springer-Verlag, Berlin, Germany. 
  7. Celka, Z. P., Szkudlarz and Biereznoj, U. (2006) Morphological variation of hairs in Malva alcea L.(Malvaceae). Biodiv. Res. Conserve.3: 258-261. 
  8. Chauhan, D. V. S. (1972) Vegetable production in India, 3rd., Ram Prasad and Sons (Agra). 
  9. Chaudhari, H. K. (1971) Elementary Principles of Plant Breeding 2nd edition , Oxford & IBH Publishing co. Ltd. pp 1-9. 
  10. Dorr, l. J. (1990) A revision of the North American Genus Callirhoe (Malvaceae). Memories New York Bot. Garden 56 : 1 - 76. 
  11. Easu Katherine (1965) Plant Anatomy 2ndedition. Wiley Eastern Private Ltd. pp:99-106. 
  12. Ehleringer, J. (1984) Ecology and ecophysiology of leaf pubescence in North American desert plants. In: Biology and Chemistry of the Plant Trichomes. [Rodregues, E., Healey, P. L. and Mehta, I. (eds.)]pp: 113-132.
  13. Elle, E., Van Dam, N. M. and Hare, J. D. (1999) Costs of glandular trichomes , a “resistance” character in Datura wrightii Regel (Solanaceae). Evolution, 53: 22-25. 
  14. Garcia, T. B., Potiguara, R. C. V., Kukuchi, T. Y. S., Demargo, D. and Aguiar-Dias, A. C. A. (2014) Leaf anatomical features of three Theobroma species (Malvaceae s.l.) native to the Brazilian Amazon. Acta. Amazonica. 44: 291 – 300.
  15. Hardin, J. W. (1979) Patterns of variation in foliar trichomes of eastern north American Quercus. American J. Bot. 6: 576-585. 
  16. Hare, J. D. and Smith, J. L. (2005) Competition, herbivory and reproduction of trichome phenotypes of Datura wright II. Ecol. 86: 334-339. 
  17. Harris, J. G. and Harris, M. W. (2001) Plant Identification Terminology , An Illustrated Glossary, 2nd edition. Spring Lake Publishing, Sprimg Lake, Utah. 
  18. Heintzelmann, C. E. and Howad, R. A. (1948) The comparative morphology of the Icacinaceae. The pubescence and crystals. Amer. Jour. Bot. 35: 42-52. 
  19. IBPGR (1990) Report on International Workshop on Okra Genetic resources held at the National bureau for Plant Genetic Resources, New Delhi, India.
  20. Iljin, M. M. (1974) Family C. Malvaceae Juss. In. Flora of the USSR[Shishkin, B. K. and Bobrov, E. G. (eds.)]. 15, Izdatels two Akademii Nauk SSSR, Moskwa- Leningrad pp: 21-127. Israel Program for Scientific Translations, Jerusalem. 
  21. Inamdar, J. A. and Chohan, A. J. (1969) Epidermal structure and ontogeny of stomata in vegetative and floral organs of Hibiscus rosa-    sinensis L. Australian J. Bot. 17: 89-95. 
  22. Inamdar, J. A., Bhat, B. R. and Rao R. T. V. (1983) Structure, ontogeny, classification and taxonomic siginificance of Trichomes in Malvales. Korean J. Bot. 26: 151-160.
  23. Jhohansen, D. A. (1940) Plant microtechnique. Mc Graw Hill. New York;
  24. Levin, D. A. (1973) The role of trichomes in plant defense. Q. Rev. Biol. 48: 3-15. 
  25. Ogunkunle, A. T. J. and Oladele, F. A. (2008) Leaf epidermal studies in some Nigerian species of Ficus L. (moraceae). Plant Systematics Evolution 274: 209-221. 
  26. Olowokudejo, J. D. and Pereira-Sheteolu, O. I. (1998) The taxonomic value of epidermal characters in the genus Ocimum (Lamiaceae). Phytomorphology 38: 147-158.
  27. Pandey, S. N. and Chadha, A. (1996) Plant Anatomy and Embryology. Vikas Publishing house Pvt Ltd. pp 99-106. 
  28. Ramayya, N. (1962) Studies on the trichomes of some compositae II. Phylogeny and Classification. Bull. Bot. Surv. India 4: 189-192. 
  29. Ramayya, N and Rao, S. R. S. (1976) Morphology phylesis and biology of peltate scale, stellate and tufted hairs in some Malvaceae. J. Indian Bot. Soc. 55: 75-79. 
  30. Rao, S. R. S. and Ramayya, N. (1977) Structure and distribution and taxonomic importance of trichomes in the Indian species of Malvastrum. Phytomorphol. 27:40-44. 
  31. Rollins, R. C. (1944) Evidence for natural hybridity between Guagule (Parthenium argentatum) and Mariola (Parthenium incanum). Amer. Jour. Bot. 31: 93-99. 
  32. Shaheen, N., Khan, M. A., Yasmin, G., Hayat, M. Q, Munsif, S. and Ahamad, K. (2010) Foliar epidermal anatomy and pollen mophology of the genera Alcea and Althaea (Malvaceae) from Pakistan. Int. J. Agric. Biol. 12: 329 - 334. 
  33. Uphof, J.C.T. (1962) Plant hairs. In: Handbuch der Pflanzenanatomic Band 4, Teil 5. 
  34. Yan-Ming, F. and Ru –Wen, (1993) Variation and evolution of leaf trichomes in Chinese Hamamelidaceae. Acta Phytotaxon. Sin. 31: 147-152. 

Editorial Board

View all (0)