alexa RESPONSE OF MORPHOLOGICAL AND PHYSIOLOGICAL GROWTH ATTRIBUTES TO FOLIAR APPLICATION OF PLANT GROWTH REGULATORS IN GLADIOLUS 'WHITE PROSPERITY'
Biochemistry

Biochemistry

Journal of Plant Biochemistry & Physiology

Author(s): Yasar Sajjad, Muhammad Jafar Jaskani, Muhammad Yasin Ashraf, Muhammad Qasim, Rashid Ahmad

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Gladiolus is very popular among ornamental bulbous plants mainly used as cut flower and greatly demanded in the world floral market. Production of inferior quality spikes is one of the major hurdles for their export. The research was conducted under Faisalabad conditions to evaluate the use of plant growth regulators in order to improve the vegetative, floral and physiological attributes. Gladiolus plants were sprayed thrice with different concentrations (0.1, 0.4, 0.7 and 1mM) of gibberellic acid, benzylaminopurine and salicylic acid at three leaf stage, five leaf stage and slipping stage. Foliar application of 1mM gibberellic acid increased the plant height (122.14cm), spike length (58.41cm), florets spike-1 (13.49), corm diameter (4.43cm), corm weight (25.34g) and total cormel weight (20.45g) compared to benzylaminopurine and salicylic acid. Gibberellic acid at 1mM concentration also increased the total chlorophyll content to 7.72mg/g, total carotenoids (1.61mg/g), total soluble sugars (3.68mg/g) followed by application of benzylaminopurine. Salicylic acid application at 1mM concentration decreased the number of days to flower (64.93) compared to 76.12 days in non treated plants

This article was published in Pak. J. Agri. Sci. and referenced in Journal of Plant Biochemistry & Physiology

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