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Research Article Open access CC BY 4.0

Effect of Gibberellic Acid (GA3) and Benzyl Adenine (BA) on Vegetative Growth and Flower Induction in Gladiolus (Gladiolus grandifloras)

Ashutosh Sharma, Sheetal Dogra, R. K. Pandey, B. K. Sinha, Arvinder Singh, Nomita Laishram

International Journal of Plant & Soil Science · pp. 362–368 · Published 20 Feb 2024

10.9734/ijpss/2024/v36i34434

Abstract

The present study was carried out during 2021 -2022 at the experimental farm of Division of Floriculture and Landscaping, Sher-e-Kashmir University of Agricultural Sciences and Technology of Jammu, Chatha, Jammu and Kashmir. The trial was laid out in factorial randomized block design with three replications and twenty-one treatment combinations. The treatment comprised of three gladiolus varieties viz., American Beauty, White Prosperity and Red Beauty and two growth regulators with their three levels of each viz., BA (50, 75 and 100 ppm) and GA3 (100, 150 and 200 ppm), and compared with control. The influence of foliar application of plant growth regulator on vegetative growth and flower induction of three gladiolus varieties namely American Beauty, White Prosperity and Red Beauty. Growth regulators, viz., gibberellic acid (100, 150 and 200 ppm) and benzyl adenine (50, 75 and 100 ppm) were sprayed at 3 leaves and 6 leaves stage after planting of corms. The results revealed that foliar application of GA3 @ 200ppm on cv. ‘White Prosperity’ recorded maximum plant height (134.27 cm), number of leaves per plant (8.53), leaf area (74.41 cm2), minimum days to 50% spike emergence (95.00) and 50% basal floret showing colour (107.00 days). It can be concluded from the present investigation that gladiolus variety ‘White Prosperity’ performed better than other varieties in respect of all the vegetative and flowering parameters. Among interactions, foliar application of GA3 @200 ppm concentration significantly increased vegetative parameters and induced early flowering in variety White Prosperity.

Benzyl adenine gibberellic acid gladiolus growth regulators

References (8)

  1. 1 Variability Studies in Gladiolus Under Mid Hill Conditions of Uttarakhand
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