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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2017: 100.00
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00
For more details click here

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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2018.7(2): 3617-3625
DOI: https://doi.org/10.20546/ijcmas.2018.702.430


Effect of Growth Regulators and Methods of Application on Vegetative Growth and Spike Yield of Tuberose (Polianthes tuberosa L.) cv. ‘Suvasini’
T. Suseela1, V. Vijaya Bhaskar2 and R. Chandrasekhar3
1Department of Floriculture and Landscape Architecture, Dr. Y. S. R. Horticultural University, College of Horticulture, Venkataramannagudem – 534 101, West Godavari District, Andhra Pradesh, India
2Department of Floriculture and Landscape Architecture, College of Horticulture, Anantharajupeta – 516 105, Kadapa district, Andhra Pradesh, India
3Controller of Examinations, SKLTS Horticultural University, Rajendranagar, Hyderabad, Telangana, India
*Corresponding author
Abstract:

An investigation was carried out to find out the effect of different plant growth regulators by foliar spray and dipping treatment on growth and spike yield of tuberose cv. Suvasini. Experiment was conducted in a two factorial randomized block design with four growth regulators each at two concentrations and two methods of application. Application of GA3 at the rate of 250 ppm recorded significantly early sprouting and lowest number of days required to reach to 50% sprouting of bulbs. Among different methods of application foliar spray recorded significantly maximum vegetative growth, early flowering, improved quality and higher yield in comparison to dipping method. Application of GA3 at 250 ppm concentration through foliar spray recorded significantly highest number of leaves (137.62), leaf area index (5.10), lowest number of days to reach to 50% spike emergence (100.35), longest spike length (103.77 cm), spike weight (93.25 g), number of florets per spike (64.34) and yield of spikes per hectare (3.42 lakhs/ha). Thus, foliar spraying of GA3 at 250 ppm concentration proved to be ideal to realize higher spike yield in tuberose.


Keywords: GA3, Growth, NAA, Paclobutrazol, Spike yield, TIBA and tuberose
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How to cite this article:

Suseela, T., V. Vijaya Bhaskar and Chandrasekhar, R. 2018. Effect of Growth Regulators and Methods of Application on Vegetative Growth and Spike Yield of Tuberose (Polianthes tuberosa L.) cv. ‘Suvasini’.Int.J.Curr.Microbiol.App.Sci. 7(2): 3617-3625. doi: https://doi.org/10.20546/ijcmas.2018.702.430