Abstract
The rose plants were cultivated in the pots containing 75% cocopeat+ 25% perlite and were nourished with ½ Hoagland nutrient solutions with pH of 4.5, 5.5, 6.5, and 8. The results revealed that plant fresh and dry weight, flower bud, and stem diameter increased with the increase in pH from 4.5 to 6.5, but then started to decrease with further increase in pH up to 8. The highest number of buds, chlorophyll content, Fv/Fm, performance index (PI), and leaf phosphorus, iron, manganese, and copper concentrations were obtained at pH 6.5 and the lowest one at pH 8. The highest and lowest zinc concentration was observed at pH 6.5 and 4.5, respectively. According to the results, pH 6.5 was evaluated as optimum for hydroponic culture of rose, which resulted in the higher uptake of elements and better vegetative and reproductive growth and higher quality of rose plants.
Published Version
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