Abstract
Use of growth regulators in ornamental plant production is a common nursery practice. Research conducted in determining landscape establishment of herbaceous plants treated with various concentrations of growth regulators is limited. The first phase of this study was conducted to evaluate response of three herbaceous ornamental species to application of ethephon. Containerized plants of irish moss, scotch moss, and salvia were treated once with FLOREL® (ethephon) at 0, 250, 500, or 750 ppm 2 weeks after transplanting into #1 size containers. During the course of the 6-week production period, standard nursery practices of fertigation, pest control, and weed management were followed. Data were collected on growth indices and marketable quality ratings (scale of 1–5) every 2 weeks. Mean initial and final shoot and root dry weights were calculated at the start and end of this phase of the experiment. The experimental design was completely randomized and data analyses were made using the analysis of variance with SAS general linear model procedure. Growth indices (cm) were significantly affected by increasing concentrations of FLOREL®. At 750 ppm concentration the mean growth indices were low (2516 cm) whereas, control (0 ppm) produced the highest mean growth indices (4317 cm). Significant differences in marketable quality ratings were also observed among the treatments where control (0 ppm) plants had the best mean rating (4.3) as compared with 500 ppm (3.6) or 750 ppm (3.5) concentrations. Salvia produced mean growth indices and mean width of 9106 and 513 cm, respectively. However, irish moss had asignificantly higher mean quality rating (4.4) when compared with either salvia (3.7) or scotch moss (3.3).
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Claims 10
Claim · model-written summary
Increasing FLOREL concentrations significantly affected ornamental growth indices.
- Taxon
- irish moss, scotch moss, and salviae1
- Treatment
- increasing concentrations of FLOREL®e0
- Outcome
- Growth indicese0
Not reportedComparatorDirection
Verbatim
e0“Growth indices (cm) were significantly affected by increasing concentrations of FLOREL®.”
e1“irish moss, scotch moss, and salvia”
Claim · model-written summary
At 750 ppm, mean growth indices were low at 2516 cm.
Verbatim
e0“At 750 ppm concentration the mean growth indices were low (2516 cm) whereas, control (0 ppm) produced the highest mean growth indices (4317 cm).”
e1“irish moss, scotch moss, and salvia”
Claim · model-written summary
Control plants had highest mean growth indices of 4317 cm.
Verbatim
e0“control (0 ppm) produced the highest mean growth indices (4317 cm)”
e1“irish moss, scotch moss, and salvia”
Claim · model-written summary
Control plants had the best marketable quality rating, 4.3.
Verbatim
e0“control (0 ppm) plants had the best mean rating (4.3)”
e1“irish moss, scotch moss, and salvia”
Claim · model-written summary
At 500 ppm the quality rating was 3.6 versus 4.3 in controls.
Verbatim
e0“control (0 ppm) plants had the best mean rating (4.3) as compared with 500 ppm (3.6)”
e1“irish moss, scotch moss, and salvia”
Claim · model-written summary
At 750 ppm the quality rating was 3.5 versus 4.3 in controls.
Verbatim
e0“control (0 ppm) plants had the best mean rating (4.3) as compared with 500 ppm (3.6) or 750 ppm (3.5)”
e1“irish moss, scotch moss, and salvia”
Claim · model-written summary
Salvia mean growth indices were 9106.
SalviaNot reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Salvia produced mean growth indices and mean width of 9106 and 513 cm, respectively.”
Claim · model-written summary
Salvia mean width was 513 cm.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Salvia produced mean growth indices and mean width of 9106 and 513 cm, respectively.”
Claim · model-written summary
Irish moss had a significantly higher mean quality rating of 4.4 than salvia at 3.7.
- Taxon
- irish moss
Chondrus crispuse0 - Outcome
- mean quality ratinge0
- Direction
- highere0
- Value
- 4.4e0
- Qualifier
- 3.7e0
- Comparator
- salviae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“irish moss had asignificantly higher mean quality rating (4.4) when compared with either salvia (3.7) or scotch moss (3.3)”
Claim · model-written summary
Irish moss had a significantly higher mean quality rating of 4.4 than scotch moss at 3.3.
- Taxon
- irish mossChondrus crispuse0
- Outcome
- mean quality ratinge0
- Direction
- highere0
- Value
- 4.4e0
- Qualifier
- 3.3e0
- Comparator
- scotch mosse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“irish moss had asignificantly higher mean quality rating (4.4) when compared with either salvia (3.7) or scotch moss (3.3)”