Group Title: NFREC research report - North Florida Research and Education Center ; 91-11
Title: Onion cultivar trial
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 Material Information
Title: Onion cultivar trial spring 1990
Series Title: NFREC research report
Physical Description: 2 leaves : ; 28 cm.
Language: English
Creator: Olson, Stephen Michael
Snell, J. M
North Florida Research and Education Center (Quincy, Fla.)
Publisher: North Florida Research and Education Center, IFAS, University of Florida
Place of Publication: Quincy Fla
Publication Date: 1991
Subject: Onions -- Varieties -- Florida   ( lcsh )
Onions -- Yields -- Florida   ( lcsh )
Genre: government publication (state, provincial, terriorial, dependent)   ( marcgt )
non-fiction   ( marcgt )
Statement of Responsibility: S.M. Olson and J.M. Snell.
General Note: Caption title.
Funding: Research report (North Florida Research and Education Center (Quincy, Fla.)) ;
 Record Information
Bibliographic ID: UF00074344
Volume ID: VID00001
Source Institution: University of Florida
Rights Management: All rights reserved by the source institution and holding location.
Resource Identifier: oclc - 85763665

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NFREC Research Report 91-11

Onion Cultivar Trial Spring 1990
S. M. Olson and J. M. Snell
Associate Professor and Sr. Biological Scientist


Onion production for dry bulbs is very limited in north Florida. High quality dry bulb
onions can be produced but high volume marketing is difficult due to competition from Georgia
and Texas. There is, however, a potential for local or direct sales. Tfistuddyi&Malevaluation
of 15 onion cultivars.
DEC 2 1931
Materials and Methods
I U;:v',s;ty of Florida
This study was conducted at the North Florida Research -aidEdTucation-Center-on an
Orangeburg loamy fine sand soil. All cultivars were direct seeded on October 4, 1989, and
transplanted for bulb production on February 5, 1990. Prior to transplanting, fertilizer was
incorporated at 1000 lb/A 3-9-18. Additional fertilizer was broadcast during the growing season
at 130 lb/A 0-0-60 and 400 lb/A 34-0-0 (two applications at 200 lb/A). Plant spacing was 4
inches X 24 inches (65,340 plants/A). Plot size was 90 ft2. There were four replications of
each cultivar arranged in a randomized complete block design. Irrigation was supplied by
overhead sprinklers. Weeds, insects and diseases were controlled with timely applications of
registered chemical products.

Bulbs were harvested at maturity from May 11 to May 21, 1990. After drying the bulbs
were graded by size. Weights and counts were recorded for each size.

Results and Discussion

Total marketable yield (50 lb sacks/A) ranged from 386 to 778 sacks/A. Marketable
yield of large bulbs (greater than 3 inches diameter) ranged from 252 to 747 sacks/A. Average
bulb weight ranged from 7.4 to 11.6 ounces. Large bulbs bring a higher price per lb. than small
bulbs. Considering total yield, large yield and bulb size, the cultivars with the best performance
were Granex 429, Granex 33, Sunre 1502, Z-513, Texas Grano 1015Y and Texas Grano 502.


Source and marketable yield of onions, Spring 1990.

Yield (50 lb sacks/A)
2 to 3 inches > 3 inches Bulb weight
Cultivar Source diameter diameter Total (oz)

Sunre 1502 Sunseeds 105 c-ey 670 ab 778 a" 10.0 b
Granex 429 Asgrow 28 e 747 a 775 a 11.6 a
Granex 33 Asgrow 33 e 706 a 740 ab 9.9 b
Z-513z Neuman 92 c-e 625 ab 719 ab 9.5 b-d
Texas Grano 502 Asgrow 81 c-e 618 ab 701 a-c 10.7 ab
Texas Grano 1015Y Asgrow 75 c-e 619 ab 696 a-c 10.2 ab
Z-218 Neuman 86 c-e 580 ab 675 a-c 9.7 bc
Savannah Sweet Petoseed 49 de 594 ab 646 a-c 9.3 b-d
Z-5122 Neuman 103 c-e 523 bc 631 a-d 8.3 c-e
Primavera Petoseed 92 c-e 502 bc 597'b-d 9.2 b-d
Z-222 Neuman 190 ab 388 cd 592 b-d 8.1 de
Yellow Granex Petoseed 45 de 520 be 565 cd 9.5 b-d
Sunre 1506 Sunseeds 214 a 339 d 561 cd 7.6 e
Henry's Special Sunseeds 149 a-c 335 d 495 de 7.4 e
Special 38 Sunseeds 123 b-d 252 d 386 e 7.6 e

zWhite bulbs.

YMean separation by Duncan's Multiple Range Test, 5% level.

xBulbs of 1.5 to 2 inches diameter included in total but not presented separately.

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