Abstract
Plants ofN. indicum andT. peruviana grew taller and produced more leaves underld than undernd condition. WhileT. peruviana plants were taller and had more leaves undernd than undersd, those ofN. indicum did not differ under the two photoperiods. In both caseslds delayed the onset of bud dormancy but hastened the initiation of floral buds. While inT. peruviana floral buds were not formed undersd condition, inN. indicum floral buds were formed but they did not develop into flowers. While inN. indicum more flowers were produced underld than undernd condition, inT. peruviana the number produced was higher undernd than underld condition.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Bhatnagar H P and Talwar K K 1978 Photoperiodic response of growth ofPinus caribaea seedlings. I. Effect on stem height and diameter and tracheid characters.Indian For. 104 212–226
Davidson H and Hamner C L 1957 Photoperiodic responses of selected woody ornamental shrubs.Mich. Exp. Stat. Quart. Bull. 40 327–343
Even-Chen Z and Sachs R M 1980 Photosynthesis as a function of short day induction and gibberellic acid treatment inBougainvillea “San Diego Red”.Plant Physiol. 65 65–68
Hoagland D R and Arnon D I 1939 The water culture method for growing plants without siol.Calif. Agric. Exp. Stat. Cir. 347
Jindal R K and Nanda K K 1978 Effect of time of sowing of flowering of some varieties of soybean (Glycine max) under varying photoperiods; inPhysiology of Sexual Reproduction in Flowering Plants. (eds) C P Malik, N C Bhattacharya, A K Srivastava and Rattan Singh (New Delhi: Kalyani Publishers) pp. 148–151
Mirov N T 1956 Photoperiod and flowering in pines.For. Sci. 2 328–332
Nanda K K 1963 Studies on growth and development of forest trees. I. Effect of photoperiod on annual growth cycle of seedlings of some Indian species.Indian J. Plant Physiol. 6 14–33
Piringer A A and Borthwick H A 1955 Photoperiodic responses of coffeeTurrialba 5 72–77
Piringer A A and Stuart N 1955 Responses ofHydrangea to photoperiod.Proc. Am. Soc. Hortic. Sci. 65 446–454
Ramina A, Hackett W P and Sachs R M 1979 Flowering inBougainvillea. A function of assimilate supply and nutrient diversion.Plant Physiol. 64 810–813
Singh K and Nanda K K 1981 Effect of photoperiod on extension growth, rest period and flowering ofBauhinia acuminata L. seedlings. Part I — Analysis of the first year growth.Indian J. Exp. Biol. 19 337–340
Wareing P F and Saunders P F 1971 Hormones and dormancy;Ann. Rev. Plant Physiol. 22 261–288
Whalley D N and Cockshull K E 1976 The photoperiodic control of rooting, growth and dormancy inCornus alba L.;Sci. Hortic. 5 127–138
Zimmermann R H 1971 Flowering in crabapple seedlings. Methods of shortening the juvenile phase.J. Am. Soc. Hortic. Sci. 96 404–411
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Singh, K., Kumar, S. & Nanda, K.K. Photoperiodic control of extension growth, bud dormancy and flowering ofNerium indicum Mill. andThevetia peruviana Schum.. Proc. Indian Acad. Sci. 91, 175–181 (1982). https://doi.org/10.1007/BF03167121
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF03167121