WATER REQUIREMENTS TRIALS
Ian Smith HortiCulture
Statistical Model and Analysis
Randomised Complete Block Design
1. Plants randomly located in treatment replicates.
2. 5 replicates comprising 37 plant selections per
treatment
3. 4 irrigation treatments with untreated (no
irrigation) control
Analysis of Variance applied to data.
Commercial use of data
Characterise selected plants according to their
Drought tolerance rating
Rating Characteristic ET0 applied
***** Thrive in very dry conditions 0
**** Thrive in dry conditions .25
*** Thrive in slightly dry conditions .50
** Thrive with irrigation .75
Thrive with significant irrigation 1.0
Rosa ‘Flower Carpet Pink’
Rosa ‘Flower Carpet White’
Rosa ‘Flower Carpet
Appleblossom’
Rosa ‘Flower Carpet Red’
Rosa ‘Flower Carpet Coral’
Rosa ‘Flower Carpet Gold’
Rosa ‘Flower Carpet Scarlet’
Rosa ‘Flower Carpet Amber’
Rosa ‘Flower Carpet New Pink’
Rosa PeJAMblue
Rosa ‘Meidiland White’
Rosa ‘iceberg’
Rosa Knockout’
Plants
Azalea ‘Liberty’
Azalea comparator
Agapanthus ‘Snowstorm’
Agapanthus ‘Bluestorm’
Astilbe ‘Color Flash’
Astilbe ‘Color Flash Lime’
Canna ‘Tropicanna’
Canna ‘Tropicanna Gold’
Canna ‘Tropicanna Black‘
Canna ‘Wyoming’
Cordyline ‘Red Fountain’
Cordyline ‘Burgundy Spire’
Cordyline ‘Black tango’
Phormium ‘Bronze Baby’
Phormium ‘Yellow Wave’
Phormium ‘Red Star’
Dianella ‘Border Gold’
Dianella ‘Border Silver’
Dianella caerulia
Ficus selection
Phlox ‘Pink white eye’
Phlox ‘Pink red eye’
Phlox ‘Purple’
Phlox ‘White’
