Abstract
The aim of this study was to investigate the biochemical responses and vase life of rose cut flowers under different ratios of NO3:NH4:urea in soilless culture. In this study, urea was used as the source of nitrogen (N) in solution cultures. For this purpose, an experiment was conducted as completely randomized design with seven ratios of N forms and three replications. The rooted cuttings of rose cv Dolce Vita were supplied with seven different ratios of NO3−:NH4+:urea (100:0:0, 70:15:15, 50:25:25, 50:0:50, 0:0:100, 50:50:0 and 0:100:0). Results showed that with the increase in urea and ammonium concentrations, the amounts of cuttings IAA, GA3, zeatin, ABA and polyamines contents decreased significantly. Plants fertigated with nutrient solution containing NO3−:NH4+:urea (50:25:25) had the highest concentrations of growth regulators, the highest stalk length and flower vase life. As the ammonium ratios in the nutrient solution increased, the flower vase life decreased significantly. It was concluded that using NO3−:NH4+:urea at the ratio of 50:25:25 had the highest effects on improving the rose cut flowers quality by affecting plants growth regulators and can be recommended for cut rose production in soilless culture systems.
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Claims 6
Claim · model-written summary
Increasing urea and ammonium concentrations was associated with significantly lower IAA, GA3 and zeatin contents in rose cuttings.
Verbatim
e0“investigate the biochemical responses and vase life of rose cut flowers under different ratios of NO3:NH4:urea in soilless culture”
e1“with the increase in urea and ammonium concentrations, the amounts of cuttings IAA, GA3, zeatin, ABA and polyamines contents decreased significantly”
Claim · model-written summary
Increasing urea and ammonium concentrations was associated with significantly lower ABA and polyamines contents in rose cuttings.
Verbatim
e0“investigate the biochemical responses and vase life of rose cut flowers under different ratios of NO3:NH4:urea in soilless culture”
e1“with the increase in urea and ammonium concentrations, the amounts of cuttings IAA, GA3, zeatin, ABA and polyamines contents decreased significantly”
Claim · model-written summary
The NO3−:NH4+:urea ratio of 50:25:25 gave the highest concentrations of growth regulators in fertigated rose plants.
- Taxon
- rosee0
- Treatment
- NO3−:NH4+:urea (50:25:25)e2
- Outcome
- concentrations of growth regulatorse2
- Direction
- higheste2
Not reportedComparator
Verbatim
e0“investigate the biochemical responses and vase life of rose cut flowers under different ratios of NO3:NH4:urea in soilless culture”
e2“Plants fertigated with nutrient solution containing NO3−:NH4+:urea (50:25:25) had the highest concentrations of growth regulators, the highest stalk length and flower vase life”
Claim · model-written summary
The NO3−:NH4+:urea ratio of 50:25:25 gave the highest stalk length and flower vase life of cut roses.
- Taxon
- rosee0
- Treatment
- NO3−:NH4+:urea (50:25:25)e2
- Outcome
- stalk length and flower vase lifee2
- Direction
- higheste2
Not reportedComparator
Verbatim
e0“investigate the biochemical responses and vase life of rose cut flowers under different ratios of NO3:NH4:urea in soilless culture”
e2“Plants fertigated with nutrient solution containing NO3−:NH4+:urea (50:25:25) had the highest concentrations of growth regulators, the highest stalk length and flower vase life”
Claim · model-written summary
Increasing ammonium ratios in the nutrient solution were associated with significantly shorter flower vase life in rose.
Verbatim
e0“investigate the biochemical responses and vase life of rose cut flowers under different ratios of NO3:NH4:urea in soilless culture”
e3“As the ammonium ratios in the nutrient solution increased, the flower vase life decreased significantly”
Claim · model-written summary
The NO3−:NH4+:urea ratio of 50:25:25 is recommended for cut rose production in soilless culture systems.
Verbatim
e4“using NO3−:NH4+:urea at the ratio of 50:25:25 had the highest effects on improving the rose cut flowers quality by affecting plants growth regulators and can be recommended for cut rose production in soilless culture systems”
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See all 16 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.