Effect of Pruning Heights on Vegetative and Reproductive Response of Rosa Gruss-an-teplitz

Abdul Rehman Majeed, Iftikhar Ahmad, Mohammad Al-Salem, Tahir Saeed, Tanveer Ahmad, Khuram Mubeen, Muhammad Nadeem, Muhammad Yousif, Muhammad Usman Khan, Umar Farooq, Muhammad Waqas

Abstract


Rosa Gruss-an-teplitz, belongs to Rosaceae family, commonly known as ‘Desi Rose’, is one of the beautiful red roses of the old garden rose section and produces flowers almost throughout the year. Roses are pruned regularly every year for regulating growth and flowering. This enhances the number, size, and quality of the flowers. Therefore, response of Gruss-an-teplitz to pruning heights at (Control, 01, 1.5, 02, 2.5, 03, 3.5 ft.), was evaluated in an experimental field. Pruning at 2.5 ft. had significant effects on studied parameters, including vegetative and reproductive plant growth, flower yield and gaseous exchange. This experiment was laid out under Randomized Complete Block Design (RCBD) using three replications per treatment. Pruning at (2.5 ft.) significantly improved growth, in terms of higher leaf area (129.55 cm2), plant height (77.01 cm), number of flowers (658.02), flower weight (4.51 g) and flower diameter (7.86 cm) with respect to other treatments. Chlorophyll a (1.57 mg/g), Chlorophyll b (2.73 mg/g), stomatal conductance (gs) (68.62) and photosynthetic rate (3.06) were also increased by pruning at (2.5 ft.). Pruning application at 2.5 ft. improved biomass, water preservation, pigments, enzymatic activity, leaf gaseous exchange, and flower yield of Gruss-an-teplitz.

Keywords


Rosa Gruss-an-Teplitz; Pruning height; Spacing; Vegetative growth; Flower quality

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References


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DOI: https://doi.org/10.33687/planthealth.03.01.5240

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