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International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2017, Volume : 5, Issue : 3
First page : (123) Last page : (129)
Article doi: http://dx.doi.org/10.18782/2320-7051.2724

Effect of GA3 Spray on Gladiolus (Gladiolus spp.) Varieties under Dry Conditions of Vidharba Region

Reshma V. S.1*, Panchbhai D. M.1, Prashant Kumar2 and Adarsh M. N.3
1Horticulture Section, College of Agriculture Nagpur, Dr. Panjabrao Deshmukh Krishi Vidyapeeth
Akola - 444 104, Maharashtra, India
2Department of Fruits and Orchard Management, BidhanChandra KrishiVishwavidyalaya,
Mohanpur-741252, West Bengal, India
3Department of Vegetable Science, Dr. Y. S. Parmar University of Horticulture and Forestry,
Nauni-173230 Solan, India
*Corresponding Author E-mail: reshmaresu143@gmail.com
Received: 20.03.2017  |  Revised: 2.04.2017   |  Accepted: 4.04.2017  


Five varieties of gladiolus viz., Snow Princess, Princess Morgarate Rose, Yellow Stone, Novalux and American Beauty were used to study the response of GA3 growth regulator under the Vidharba conditions of Maharashtra. The gibberellic acid with GA3 concentrations (0, 100 and 200 ppm) were sprayed on plants at 30th, 45th and 60th day after planting. Among five varieties, the variety American Beauty has recorded early sprouting (66.6 days), maximum number sprouts per plant(4.18), maximum height (58.78 cm) and maximum number of leaves (22) whereas, Princess Morgarate has recorded maximum leaf area (78.10 cm2) under 200 ppm GA3. The floral attributes showed that the variety Princess Morgarate Rose has recorded minimum days to first spike emergence (55.21 days), minimum days to opening of floret (64.83 days) and minimum days for 50% flowering (57.63 days) whereas, the variety Snow Princess has recorded maximum flowering span (26.12) and variety Yellow Stone has recorded maximum longevity of flowering on plant (15.68 days) also when sprayed with 200 ppm GA3. In this regard the two varieties namely American Beauty and Princess Morgarate Rose showed superiority among all varieties with respect plant growth and flowering attributes respectively when sprayed with GA3 at 200 ppm concentration.

Key words: Gladiolus ssp., GA3, Vegetative Growth, Flowering.

Full Text : PDF; Journal doi : http://dx.doi.org/10.18782

Cite this article: Reshma, V.S., Panchbhai, D.M., Kumar, P. and Adarsh, M.N., Effect of GA3 Spray on Gladiolus (Gladiolus spp.) Varieties under Dry Conditions of Vidharba Region, Int. J. Pure App. Biosci.5(3): 123-129 (2017). doi: http://dx.doi.org/10.18782/2320-7051.2724