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EFFECT OF DIFFERENT PLANT GROWTH REGULATORS AND TIME OF PRUNING ON YIELD COMPONENTS OF ROSA DAMASCENA HILL

Vahid Reza Saffari, A Khalighi, Hamid Lesani

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Abstract

Damask rose (Rosa damascena Mill.) is an important essential oil yielding crop in Iran. In order to determine the best pruning time and effect of different plant growth regulators, three different times of pruning with seven types of growth hormones were assessed. Pruning time at 1 week of March significantly affected on plant height and flower yield but not on oil content. The longest flowering period was associated with pruning time at the 1 week of April although this treatment significanly lowered flower yield and shortened plant height. Alar, Kinetin, NAA and Cycocel application increased while GA3 decreased flower oil content in compare to control and also showed the shortest flowering priod among treatments. Intraction effects were not significant between two factors.

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What this paper is about

Damask rose (Rosa damascena Mill.) is an important essential oil yielding crop in Iran. In order to determine the best pruning time and effect of different plant growth regulators, three different times of pruning with seven types of growth hormones were assessed. Pruning time at 1 week of March significantly affected on plant height and flower yield but not on oil content. The longest flowering period was associated with pruning time at the 1 week of April although this treatment significanly lowered flower yield and shortened plant height. Alar, Kinetin, NAA and Cycocel application increased while GA3 decreased flower oil content in compare to control and also showed the shortest flowering priod among treatments. Intraction effects were not significant between two factors.

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Available abstract

Damask rose (Rosa damascena Mill.) is an important essential oil yielding crop in Iran. In order to determine the best pruning time and effect of different plant growth regulators, three different times of pruning with seven types of growth hormones were assessed. Pruning time at 1 week of March significantly affected on plant height and flower yield but not on oil content. The longest flowering period was associated with pruning time at the 1 week of April although this treatment significanly lowered flower yield and shortened plant height. Alar, Kinetin, NAA and Cycocel application increased while GA3 decreased flower oil content in compare to control and also showed the shortest flowering priod among treatments. Intraction effects were not significant between two factors.

Key concepts: Rosa × damascena, Pruning, Essential oil, Yield (engineering), Kinetin, Horticulture, Crop, Plant growth

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EFFECT OF DIFFERENT PLANT GROWTH REGULATORS AND TIME OF PRUNING ON YIELD COMPONENTS OF ROSA DAMASCENA HILL — Research Paper | ScholarLens