Loading...

EFFECT OF FOLIAR SPRAYS OF BIOREGULATORS ON GROWTH AND FLOWERING IN GLADIOLUS

Article Id: ARCC027 | Page : 192-199
Citation :- EFFECT OF FOLIAR SPRAYS OF BIOREGULATORS ON GROWTH AND FLOWERING IN GLADIOLUS.Indian Journal of Agricultural Research.2013.(47):192-199
T. Padmalatha*, G. Satyanarayana Reddy, R. Chandrasekhar, A. Siva Shankar1 and Anurag Chaturvedi2 gandhamlatha@yahoo.com,
Address : College of Horticulture, Hyderabad- 500 030, India

Abstract

Effect of different plant growth regulator sprays (GA3, TIBA, CPPU and BR) on growth and flowering of two gladiolus cultivars Darshan and Dhiraj was investigated for two consecutive years, 2008-09 and 2009-10. Growth regulators were sprayed at 3 rd and 6th leaf stage. Cv. Darshan differed significantly with cv. Dhiraj in respect to plant height, leaf area and flowered earlier. GA3 150 ppm followed by brassinosteroid (BR) 10 ppm recorded maximum plant height, number of leaves and leaf area during vegetative growth and resulted in earlier flowering. TIBA 100 ppm, TIBA 50 ppm and control recorded significantly minimum leaf area and showed delayed flowering. Cv. Dhiraj recorded maximum percentage of plants flowered than the cv.Darshan. Cv. Darshan recorded significantly highest spike length and inter floret length and minimum days to wilting of spike over the cv. Dhiraj. Cv. Dhiraj was significantly superior over cv. Darshan in respect of number of florets per spike and longevity of spike. Maximum spike length and weight, number of florets per spike and spike field life were recorded with GA3 150 ppm. Lowest values in respect of flower parameters were recorded with TIBA treatments and control.

Keywords

Brassinosteroids CPPU Flowering Gladiolus GA3 .

References

  1. Alvarez R., Farias., Y and Angarita., M (2005) Effect of application of brassinosteroid (Biobras-16) on the growth and number of buds of ‘Madame Delbard’ and ‘Lidia’ roses. Proc. Inter. Soc. Tropical Hort., 48 : 189-190.
  2. Braun., P and Wild., A (1984) The influence of brassinosteroids on growth and parameters of photosynthesis of wheat and mustard plants. J. Plant Physiol., 116 : 189-196.
  3. Darginaviciene., J and Maksimov., G (2001) The role of basipetal IAA transport in the hormonal regulation of plant cell growth. Biologija, 2 : 11-13.
  4. Devi., D .U, Sekhar., R .C and Babu., J .D (2007) Effect of growth regulators on flowering and corm production in gladiolus cv. Jacksonville Gold. J. Res., ANGRAU, 35 (1): 6-14.
  5. Gaur., G. S, Chaudhury., T. C and Trivedi., J. D (2003) Effect of GA3 and IAA on growth, flowering and corm production in gladiolus cv. Eurovision. Farm Sci. J., 12 (1): 1-3.
  6. Gregory., L .E (1981) Acceleration of plant growth through seed treatment with brassins. American Journal of Botany, 68 : 586-588.
  7. Huang., X .X, LiFeng Zhou., Yan Hong Mao., Wei Hua Shi Kai., Wu Jian Xiang., Asami., T, Chen., Z. X and Yu Jing Quan (2009) Brassinosteroids promote photosynthesis and growth by enhancing activation of Rubisco and expression of photosynthetic genes in Cucumis sativus. Planta, 230 (6) : 1185-1196.
  8. Ku., Y. G, Woolley., D . J and Nichols., M. A (2008) Effect of CPPU treatment on fern number, bud number, and photosynthetic rate of asparagus. Acta Horticulturae, 776 : 471-476.
  9. Mandava., N. B and Thompson., M . J (1983) Chemistry and functions of brassinolide. In. Proceedings of isopentenoid symposium. [W. D. Nes, G. Fuller and L. S. Tsai (eds.)]. Dekker New York : pp. 401-431.
  10. Meudt., W. J, Thompson., M .J, Mandava., N. B and Worley., J. F (1984) Methods for promoting plant growth. Canadian Patent No. 1173659. Assigned to USA, p. 11
  11. Pranav Rana., Jitendra Kumar and Mukesh Kumar (2005) Response of GA3, plant spacing and planting depth on growth, flowering and corm production in gladiolus. Journal of Ornamental Horticulture (New Series,) 8 (1): 41-44.
  12. Rajiv Kumar., Dubey., R .K and Misra., R .L (2002) Effect of GA3 on growth, flowering and corm production of gladiolus. In: Floriculture Research Trend in India, Misra R L and Sanyat Misra (eds.). Indian Society of Ornamental Horticulture, IARI, New Delhi p. 12-15.
  13. Ravidas., L, Rajeevan., P .K and Valasala Kumari (19920 Effect of foliar application of growth regulators on the growth, flowering and corm yield of gladiolus cv. Freiendship. South Indian Horticulture, 40 (6) : 329-335.
  14. Sauter and Kende., H (1992) Gibberellin induced growth and regulation of the cell division cycle in deep water rice. Planta, 188 : 362-368.
  15. Singh., M .K, Parmar., A .S and Rathore., S. V. S (2002) Corm production in gladiolus as affected by size of cormels and GA3 application. In: Floriculture Research Trend in India. Misra R L and Sanyat Misara (eds.). Proceedings of the National Symposium on Indian Floriculture in the New Millenium held during 25-27th February, 2002 at Bangalore pp. 246-248.
  16. Tawar., R .V, Sable., A .S and Giri., M. D (2003) Effect of growth regulators on growth and flowering of gladiolus cv. Jester. Annals of Plant Physiology, 17 (2) : 109-111.
  17. Yu., J. Q, Li., Y, Qian., Y. R and Zhu., Z. J (2001) Cell division and cell enlargement in fruit of Lagenaria leucantha as influenced by pollination and plant growth substances. Plant Growth Regulation, 33 (2) : 117-122.
  18. Vardhini., B .V and Rao., S. S R (2004) Influence of brassinosteroids on growth, yield, metabolite content and enzyme activities of tomato (Lycopersicon esculentum Mill.). Proc. Nation. Acad. Scie., India. Sec. B Biol. Sci. 74 (3/ 4) : 307-315.
  19. Vijai Kumar and Umrao., V (2007) Effect of gibberellic acid on gladiolus. South Indian Horticulture, 55 (1-6) : 303-305.

Global Footprints