Plant Growth Regulation

, Volume 53, Issue 3, pp 215–223 | Cite as

Hormonal regulation of tiller dynamics in differentially-tillering rice cultivars

Original Paper

Abstract

Tiller number can contribute significantly to yield potential of rice, but little knowledge is available on hormonal regulation of tillering and tiller dynamics. In the present study, Indole-3-acetic acid (IAA), kinetin (6-furfuryl amino purine) and Gibberellic acid (GA3) treatments have been applied at the early tillering stage to two rice cultivars that contrast for tiller number. The responses of the hormones were studied on growth, development, grain yield, senescence patterns, assimilate concentration of the panicle and ethylene production in different classes of tillers. The leaf area, panicle grain number, fertility percentage and grain yield of tillers were higher in the low-tillering cultivar than that of high-tillering cultivar; the treatment of kinetin was more effective in the latter than in the former. High ethylene production was responsible for reduction of growth duration and grain yield of the tillers. Kinetin application reduced ethylene production of the late-tillers significantly for the benefit of grain yield.

Keywords

Rice Assimilates Ethylene Kinetin IAA GA3 

Notes

Acknowledgement

The authors thank the University Grants Commission, New Delhi for financial assistance under the DRS programme.

References

  1. Arnon DI (1949) Copper enzymes in isolated chloroplasts. Polyphenol oxidase in Beta vulgaris. Plant Physiol 29:1–15Google Scholar
  2. Beltrano J, Carbone A, Montaldi ER, Guiamet JJ (1994) Ethylene as promoter of wheat grain maturation and ear senescence. Plant Growth Regul 15:107–112CrossRefGoogle Scholar
  3. Beltrano J, Ronco MG, Montaldi ER, Carbone A (1998) Senescence of flag leaves and ears of wheat hastened by methyl jasmonate. J Plant Growth Regul 17:53–57CrossRefGoogle Scholar
  4. Buysee J, Merck R (1993) An improved colorimetric method to quantify sugar content of plant tissue. J Exp Bot 44:1627–1629CrossRefGoogle Scholar
  5. Coenen C, Christian M, Luthen M, Lomax TL (2003) Cytokinin inhibits a subset of diageotropica-dependent primary auxin responses in tomato. Plant Physiol. 131:1692–1704PubMedCrossRefGoogle Scholar
  6. De Datta SK (1981) Principles and practices of rice production. Wiley, New YorkGoogle Scholar
  7. Dingkuhn M, Kropff M (1996) Rice. Photo-assimilate distribution in plants and crops. Source and sink relationships. In: Zamski E, Schaffer AA (eds) Rice. Marcel Dekker Inc., New York, pp 519–547Google Scholar
  8. Dun EA, Ferguson BJ, Beveridge CA (2006) Apical dominance and shoot branching. Divergent opinions or divergent mechanisms. Plant Physiol 142:812–819PubMedCrossRefGoogle Scholar
  9. Harrison MA, Kaufman PB (1982) Does ethylene play a role in the release of lateral buds (tillers) from apical dominance in oats? Plant Physiol 70:811–814PubMedGoogle Scholar
  10. Harrison MA, Kaufman PB (1984) The role of hormone transport and metabolism in apical dominance of oats. Bot Gaz 145:293–297PubMedCrossRefGoogle Scholar
  11. Heath RL, Packer L (1968) Photo-oxidation in isolated chloroplasts. I. Kinetics and stoichiometry of fatty acid peroxidation. Arch Biochem Biophys 125:189–198PubMedCrossRefGoogle Scholar
  12. Jaffuel S, Dauzat J (2005) Synchronism of leaf and tiller emergence relative to position and to main stem development stage in a rice cultivar. Ann Bot 95:401–412PubMedCrossRefGoogle Scholar
  13. Kropff MJ, Cassman KG, Peng S, Mathews RB, Setter TL (1994) Quantitative understanding of yield potential. In: Cassman KG (ed) Breaking the yield barrier. Proceedings of a workshop on rice yield potential in favourable environments. International Rice Research Institute, Los Banos, Philippines, pp 21–38Google Scholar
  14. Kuraishi S, Muir RM (1964) The relationship of gibberellin and auxin in plant growth. Plant Cell Physiol 5:61–69Google Scholar
  15. Langer RHM, Prasad PC, Laude HM (1973) Effects of kinetin on tiller bud elongation in wheat (Triticum aestivum L.). Ann Bot 37:565–571Google Scholar
  16. Leopold AC (1949) The control of tillering in grasses by auxin. Am J Bot 36:437–440CrossRefPubMedGoogle Scholar
  17. Lowry OH, Rosebrough NJ, Farr AL, Randall RI (1951) Protein measurement with Folin-phenol reagent. J Biol Chem 193:265–275PubMedGoogle Scholar
  18. Mohapatra R, Mohapatra PK (2006) Ethylene control of seed coat development in low and high sterile semidwarf indica rice cultivars. Plant Growth Regul 50:47–55CrossRefGoogle Scholar
  19. Morris DA (1996) Hormonal regulation of source-sink relationships: an overview of potential control mechanism. In: Zamski E, Schaffer AA (eds) Photo-assimilate distribution in plants and crops. Source sink relationships. Marcel Dekker Inc., New York, pp 441–465Google Scholar
  20. Naik PK, Mohapatra PK (2000) Ethylene inhibitors enhanced sucrose synthase activity and promoted grain filling of basal kernels. Aust J Plant Physiol 27:997–1008Google Scholar
  21. Patel R, Mohapatra PK (1992) Regulation of spikelet development in rice by hormones. J Exp Bot 43:257–262CrossRefGoogle Scholar
  22. Peng S, Cassman KG, Virmani SS, Sheehy J, Khush GS (1999) Yield potential of tropical rice since the release of IR8 and the challenge of increasing rice yield potential. Crop Sci 39:1552–1559CrossRefGoogle Scholar
  23. Peng S, Khush GS, Cassman KG (1994) Evolution of the new plant ideotype for increased yield potential. In: Cassman KG (ed) Breaking the yield barrier. Proceedings of a workshop on rice yield potential in favourable environments. International Rice Research Institute, Philippines, pp 5–20Google Scholar
  24. Reed AJ, Singletary GW (1989) Roles of carbohydrate supply and phyto-hormones in maize kernel abortion. Plant Physiol 91:986–992PubMedCrossRefGoogle Scholar
  25. Salisbury FB, Ross CW (1992) Plant physiology, 4th edn. Wadsworth Publishing Company, California, USAGoogle Scholar
  26. Wang F, Cheng F, Zhang G (2006) The relationship between grain filling and hormone content as affected by genotype and source-sink relation. Plant Growth Regul 49:1–8CrossRefGoogle Scholar
  27. Yang J, Peng S, Visperas RM, Sanico AL, Zhu Q, Gu S (2000) Grain filling pattern and cytokinin content in the grain and roots of rice plants. Plant Growth Regul 30:261–270CrossRefGoogle Scholar
  28. Yang J, Zhang J, Huang Z, Wang Z, Zhu Q, Liu L (2002) Correlation of cytokinin levels in the endosperms and roots with cell number and cell division activity during endosperm development in rice. Ann Bot 90:369–377PubMedCrossRefGoogle Scholar
  29. Yemm EW, Cocking EC (1955) The determination of amino acids with ninhydrin. Analyst 80:209–212CrossRefGoogle Scholar
  30. Yoshida S (1981) Fundamentals of rice crop science. International Rice Research Institute, Los Banos, PhilippinesGoogle Scholar

Copyright information

© Springer Science+Business Media B.V. 2007

Authors and Affiliations

  1. 1.School of Life SciencesSambalpur UniversitySambalpurIndia

Personalised recommendations