Species

Verbena - Spring 2004

Flower Color, Plot Development Over Time, Data and Comments

Data and pictures will be added as time allows.

Vinca

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Vinca

Botany

Family:	Verbenaceae
Scientific names:	Verbena rigida Spreng. [The Germplasm Resources Information Network (GRIN)].
Common names:	Tuberous vervain [Integrated Taxonomic Information System (ITIS)]; veined verbena (GRIN); tuber vervain, sandpaper verbena, prairie verbena, upright verbena (various sources).
Native habitat:
	View maps related to habitat and other topics from this link to the National Geographic MapMachine: .
Pests
Common plant arthropods (insects/other)/other:	Reported arthropod symptoms in literature: Leafminer, mealybug and whitefly.
	Arthropod symptoms observed in this trial: very minor worm feeding from beet armyworm was observed in one plot in mid May, without further incidence.
Common plant diseases/other:	Reported disease symptoms in literature: Powdery mildew.
	Diseases symptoms observed in this trial: some leaf necrosis was observed in one plot, but very minor, but no pathogen isolations were made. Plant deaths were low; plant pathologists isolated F. oxysporum.
Commercial control:	Greenhouse.	Field/shade house.
Arthropod information:	Pests identified on crops. Search the Arthropod/Host Plant Database.		Florida pest facts and images. Featured Creatures
Disease information:	Plant Disease Facts (Pennsylvania State University) Ornamental Plant Disease Fact Sheets		The American Phytopathological Society Search Common Names of Plant Diseases
More Links and Information
Performance evaluations:	trial reports and other publications.
More resources:	additional information.

Honors:

Best-of-class (BC). We select the best performer in each class, based on the "overall performance rating". This rating may not be high, if the class does not perform well (indicating a possible need for improvement in the class). The rating may be significantly different from one or more members of the class. If two or more members of a class received the same highest overall performance rating, we used another rating (such as overall foliage/flower rating or flower average rating) to determine BC. If only one cultivar was entered in a class, it automatically becomes uncontested BC. BC is evaluated in future trials against the performance of new entries in the same class. Refer to a report in "Articles, Papers & Reports" for detailed information. In addition to BC, other "honors" received for these cultivars may be added to BC at a later date, time permitting. Seed companies may forward these honors (awards) to Rick Kelly.

Rating System:

The rating is a 1 to 7 scale: 7- all foliage and flowers free from defects; 4- average foliage and flower condition, minimal plant defects or pest damage to tissue, but still acceptable; 1- foliage and/or flowers with severe defects and/or severely infested with pests and damage unacceptable, making plant undesirable. Plant death due to soilborne pests may be factored into the overall performance rating, if it is a significant problem. Refer to a report in "Articles, Papers & Reports" for details. If listed, ratings with an "a" are the best in a class. If cultivars share the same letters, those ratings are considered to be similar to each other. If there are no letters, there is only one cultivar in a class or all the members of a class have similar ratings.

American Takii

Ball Seed

Bodger Seeds

Floranova Plant Breeders

Flower Fields - Goldsmith Seeds

The Flower Fields

Grimes Seeds & Plants

Kieft Seeds Holland

E. Benary Seed of America

Scroll down the page or click on the verbena class below to view pictures and data:

Verbena rigida; purple ( light) blue-violet class

Winter

Verbena rigida; purple (light) blue-violet class

Picture date:	1 May (week 11¹)	14 May (week 13)	31 May (week 16)	24 June (week 19)
'Santos'	Sprayed Field Unsprayed Field	Sprayed Field Unsprayed Field	Sprayed Field Unsprayed Field	No picture available. Sprayed Field Plot A Plot B Unsprayed Field
Cultivar No: 234

Seed Co.
Picture date:

Seed Sowing Date	Flower Diameter²	Days to First Flower³	Overall Foliage/Flower Rating⁴	Overall Pest Rating⁵	Overall Performance Rating⁶
11 Feb.	0.7 (0.3)	76	5.8	6.5	6.1

Honors:

Comments: Best-of-class established in 2003 (uncontested). Evaluation was also repeated in winter 2003-2004.

Details of performance for this cultivar will be posted on the web in "Articles, Papers & Reports" at the completion of this trial. These details will include ratings over the entire season and pest problems.

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ROK

1. The number of weeks from seed sowing to the date the plant was photographed. Photographs were taken in a field sprayed on demand as needed, after scouting for pests, and a field that is not sprayed at all.

2. Measured in centimeters and inches [cm (inches)].

3. Average number of days from sowing to unfurling of the first flower in the plots. Flowering for alyssum was completed in the flat prior to planting in the field. Values with an "a" are considered significantly greater than those with a "b", "c", etc., and those without a letter are not considered to be significantly different.

4. The average of the combined foliage and flower data in the sprayed field as an expression of cultivar quality. Values with an "a" are considered significantly greater than those with a "b", "c", etc., and those without a letter are not considered to be significantly different.

5. The average of the combined foliage and flower data in the unsprayed field as an expression of arthropod and disease symptoms. Values with an "a" are considered significantly greater than those with a "b", "c", etc., and those without a letter are not considered to be significantly different.

6. The average of the combined overall foliage/flower rating and overall pest rating. If plant death from a soilborne pathogen resulted, this was factored into the rating. Values with an "a" are considered significantly greater than those with a "b", "c", etc., and those without a letter are not considered to be significantly different. See Articles, Papers & Reports for further explanation in the reports.

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